FreeCalypso > hg > freecalypso-reveng
annotate bootrom.disasm @ 12:25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Wed, 24 Apr 2013 19:32:45 +0000 |
parents | a51729642295 |
children | e0ce45f043c0 |
rev | line source |
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1
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beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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1 RESET entry and exception vectors: |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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2 0: ea000524 b 0x1498 |
4b5e22875181
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3 4: ea200004 b 0x80001c |
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4 8: ea200004 b 0x800020 |
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5 c: ea200004 b 0x800024 |
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6 10: ea200004 b 0x800028 |
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7 14: ea200004 b 0x80002c |
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8 18: ea200004 b 0x800030 |
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9 1c: ea200004 b 0x800034 |
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10 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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11 ; The following routine (starting at 0x20) is used to transfer control |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6
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12 ; to nCS0 application images that are designed to work with no internal |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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13 ; boot ROM "in the way", i.e., images identified by a 1 in the 0x2000 word. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
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6
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14 ; The present routine is copied to the internal RAM and executed there. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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15 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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6
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16 ; The routine itself takes one argument in R0 and uses it to set the |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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17 ; nIBOOT override bits in the FFFF:FB10 register. If R0==1, bits <9:8> |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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18 ; of this register are set to 11, putting nCS0 at address 0. If R0==0, |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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19 ; the bits are set to 01, putting the internal ROM at 0. Otherwise, |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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20 ; the bits are set to 00, restoring the nIBOOT pin configuration. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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21 ; (In actual operation the argument passed to this function is the word |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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22 ; from 0x2000, so it's equal to 1.) Then the routine causes the |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
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23 ; watchdog timer to go off, resetting the ARM. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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24 |
1
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25 20: e24dd004 sub sp, sp, #4 ; 0x4 |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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5
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26 24: e59f20b8 ldr r2, =0xFFFFFB10 ; via 0xe4 |
1
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27 28: e1d2c0b0 ldrh r12, [r2] |
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28 2c: e20c10ff and r1, r12, #255 ; 0xff |
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29 30: e20ccb3f and r12, r12, #64512 ; 0xfc00 |
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30 34: e181c00c orr r12, r1, r12 |
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31 38: e1a0c80c mov r12, r12, lsl #16 |
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32 3c: e1a0c82c mov r12, r12, lsr #16 |
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33 40: e3500001 cmp r0, #1 ; 0x1 |
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34 44: 0a000005 beq 0x60 |
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35 48: e3500000 cmp r0, #0 ; 0x0 |
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36 4c: 1a000006 bne 0x6c |
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37 50: e38ccc01 orr r12, r12, #256 ; 0x100 |
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38 54: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
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39 58: e1a0c82c mov r12, r12, lsr #16 |
4b5e22875181
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40 5c: ea000002 b 0x6c |
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41 60: e38ccc03 orr r12, r12, #768 ; 0x300 |
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42 64: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
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43 68: e1a0c82c mov r12, r12, lsr #16 |
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44 6c: e1c2c0b0 strh r12, [r2] |
4b5e22875181
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45 70: e3a0cfc3 mov r12, #780 ; 0x30c |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
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46 74: e59f006c ldr r0, =0x80F5 ; via 0xe8 |
1
4b5e22875181
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47 78: e10200bc strh r0, [r2, -r12] |
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48 7c: e3a0c000 mov r12, #0 ; 0x0 |
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49 80: e1cdc0b0 strh r12, [sp] |
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50 84: ea000002 b 0x94 |
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51 88: e1ddc0b0 ldrh r12, [sp] |
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52 8c: e28cc001 add r12, r12, #1 ; 0x1 |
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53 90: e1cdc0b0 strh r12, [sp] |
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54 94: e1dd10b0 ldrh r1, [sp] |
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55 98: e3a0c902 mov r12, #32768 ; 0x8000 |
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56 9c: e24ccead sub r12, r12, #2768 ; 0xad0 |
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57 a0: e151000c cmp r1, r12 |
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58 a4: bafffff7 blt 0x88 |
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59 a8: e3a0cfc3 mov r12, #780 ; 0x30c |
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60 ac: e10200bc strh r0, [r2, -r12] |
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61 b0: e3a0c000 mov r12, #0 ; 0x0 |
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62 b4: e1cdc0b0 strh r12, [sp] |
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63 b8: ea000002 b 0xc8 |
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64 bc: e1ddc0b0 ldrh r12, [sp] |
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65 c0: e28cc001 add r12, r12, #1 ; 0x1 |
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66 c4: e1cdc0b0 strh r12, [sp] |
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67 c8: e1ddc0b0 ldrh r12, [sp] |
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68 cc: e3a00902 mov r0, #32768 ; 0x8000 |
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69 d0: e2400ead sub r0, r0, #2768 ; 0xad0 |
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70 d4: e15c0000 cmp r12, r0 |
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71 d8: bafffff7 blt 0xbc |
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72 dc: e28dd004 add sp, sp, #4 ; 0x4 |
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73 e0: e12fff1e bx lr |
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74 |
8
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boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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75 ; literal pool for the above routine |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
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76 e4: fffffb10 |
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
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77 e8: 000080f5 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
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parents:
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78 ; end of the code copied to the internal RAM for booting type 1 images |
1
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79 |
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80 ec: e92d4010 stmdb sp!, {r4, lr} |
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81 f0: e59fcd0c ldr r12, [pc, #3340] ; 0xe04 |
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82 f4: e59c4014 ldr r4, [r12, #20] |
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83 f8: e59f0d08 ldr r0, [pc, #3336] ; 0xe08 |
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84 fc: e5dcc008 ldrb r12, [r12, #8] |
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85 100: e790c10c ldr r12, [r0, r12, lsl #2] |
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86 104: e28c0005 add r0, r12, #5 ; 0x5 |
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87 108: e5d0c000 ldrb r12, [r0] |
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88 10c: e31c0040 tst r12, #64 ; 0x40 |
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89 110: 0afffffc beq 0x108 |
8
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90 114: eb000513 bl 0x1568 ; IND_CALL |
1
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91 118: eafffffe b 0x118 |
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92 |
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93 11c: e3a0c004 mov r12, #4 ; 0x4 |
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94 120: e5c0c000 strb r12, [r0] |
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95 124: e3a0c000 mov r12, #0 ; 0x0 |
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96 128: e1c0c0be strh r12, [r0, #14] |
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97 12c: e1c0c1b0 strh r12, [r0, #16] |
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98 130: e580c014 str r12, [r0, #20] |
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99 134: e5c0c018 strb r12, [r0, #24] |
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100 138: e12fff1e bx lr |
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101 |
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102 13c: e92d4000 stmdb sp!, {lr} |
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103 140: e1a0c000 mov r12, r0 |
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104 144: e59f0cc0 ldr r0, [pc, #3264] ; 0xe0c |
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105 148: e3a0103e mov r1, #62 ; 0x3e |
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106 14c: e5c01000 strb r1, [r0] |
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107 150: e35c0009 cmp r12, #9 ; 0x9 |
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|
108 154: 88bd8000 ldmhiia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
109 158: e28f1000 add r1, pc, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
110 15c: e791f10c ldr pc, [r1, r12, lsl #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
111 160: 000002ac andeq r0, r0, r12, lsr #5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
112 164: 00000280 andeq r0, r0, r0, lsl #5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
113 168: 00000264 andeq r0, r0, r4, ror #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
114 16c: 00000248 andeq r0, r0, r8, asr #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
115 170: 00000224 andeq r0, r0, r4, lsr #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
116 174: 00000200 andeq r0, r0, r0, lsl #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
117 178: 000001dc ldreqd r0, [r0], -r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
118 17c: 000001c0 andeq r0, r0, r0, asr #3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
119 180: 000001a4 andeq r0, r0, r4, lsr #3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
120 184: 00000188 andeq r0, r0, r8, lsl #3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
121 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
122 188: e3a0c042 mov r12, #66 ; 0x42 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
123 18c: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
124 190: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
125 194: e59fcc74 ldr r12, [pc, #3188] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
126 198: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
127 19c: eb000458 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
128 1a0: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
129 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
130 1a4: e3a0c062 mov r12, #98 ; 0x62 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
131 1a8: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
132 1ac: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
133 1b0: e59fcc58 ldr r12, [pc, #3160] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
134 1b4: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
135 1b8: eb000451 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
136 1bc: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
137 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
138 1c0: e3a0c061 mov r12, #97 ; 0x61 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
139 1c4: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
140 1c8: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
141 1cc: e59fcc3c ldr r12, [pc, #3132] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
142 1d0: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
143 1d4: eb00044a bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
144 1d8: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
145 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
146 1dc: e3a0c043 mov r12, #67 ; 0x43 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
147 1e0: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
148 1e4: e59fcc18 ldr r12, [pc, #3096] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
149 1e8: e5dc1010 ldrb r1, [r12, #16] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
150 1ec: e5c01002 strb r1, [r0, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
151 1f0: e5dc2008 ldrb r2, [r12, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
152 1f4: e3a01003 mov r1, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
153 1f8: eb000441 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
154 1fc: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
155 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
156 200: e3a0c063 mov r12, #99 ; 0x63 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
157 204: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
158 208: e59fcbf4 ldr r12, [pc, #3060] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
159 20c: e5dc1010 ldrb r1, [r12, #16] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
160 210: e5c01002 strb r1, [r0, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
161 214: e5dc2008 ldrb r2, [r12, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
162 218: e3a01003 mov r1, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
163 21c: eb000438 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
164 220: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
165 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
166 224: e3a0c057 mov r12, #87 ; 0x57 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
167 228: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
168 22c: e59fcbd0 ldr r12, [pc, #3024] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
169 230: e5dc1019 ldrb r1, [r12, #25] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
170 234: e5c01002 strb r1, [r0, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
171 238: e5dc2008 ldrb r2, [r12, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
172 23c: e3a01003 mov r1, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
173 240: eb00042f bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
174 244: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
175 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
176 248: e3a0c077 mov r12, #119 ; 0x77 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
177 24c: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
178 250: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
179 254: e59fcbb4 ldr r12, [pc, #2996] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
180 258: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
181 25c: eb000428 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
182 260: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
183 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
184 264: e3a0c050 mov r12, #80 ; 0x50 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
185 268: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
186 26c: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
187 270: e59fcb98 ldr r12, [pc, #2968] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
188 274: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
189 278: eb000421 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
190 27c: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
191 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
192 280: e3a0c070 mov r12, #112 ; 0x70 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
193 284: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
194 288: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
195 28c: e5c0c002 strb r12, [r0, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
196 290: e3a0c004 mov r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
197 294: e5c0c003 strb r12, [r0, #3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
198 298: e3a01004 mov r1, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
199 29c: e59fcb6c ldr r12, [pc, #2924] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
200 2a0: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
201 2a4: eb000416 bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
202 2a8: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
203 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
204 2ac: e3a0c069 mov r12, #105 ; 0x69 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
205 2b0: e5c0c001 strb r12, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
206 2b4: e3a01002 mov r1, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
207 2b8: e59fcb50 ldr r12, [pc, #2896] ; 0xe10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
208 2bc: e5dc2000 ldrb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
209 2c0: eb00040f bl 0x1304 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
210 2c4: e8bd8000 ldmia sp!, {pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
211 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
212 ; Routine at 0x2c8 - called from 0x1090. It receives and interprets |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
213 ; the 2nd byte that comes after the '<'. It appears that this function |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
214 ; only decodes the several known commands, but doesn't actually execute |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
215 ; them. If a byte was received during the allowed time (set by the 800104 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
216 ; variable), this function returns 1 and sets the *R0 byte to the decoding |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
217 ; result. If no byte was received, this function returns 0; ditto if a |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
218 ; timeout occurred while waiting for additional bytes. |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
219 ; |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
220 ; Arguments: |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
221 ; R0 points to a byte of RAM, an additional output |
25b016d16602
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parents:
11
diff
changeset
|
222 ; |
25b016d16602
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parents:
11
diff
changeset
|
223 ; *R0 return byte values: |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
224 ; 00 = got nothing (timeout) or an invalid/non-understood command |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
225 ; 01 = got 'i' |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
226 ; 02 = |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
227 ; 03 = |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
228 ; 04 = got 'c', 1 additional byte received, extended to a half-word |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
229 ; and written to 80052C |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
230 ; 05 = got 'a' |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
231 ; 06 = got 'b', 4 bytes written to 800538 |
25b016d16602
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
232 |
1
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
233 2c8: e92d4ff0 stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr} |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
234 2cc: e24dd004 sub sp, sp, #4 ; 0x4 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
235 2d0: e1a0b000 mov r11, r0 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
236 2d4: e3a05000 mov r5, #0 ; 0x0 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
237 2d8: e5cb5000 strb r5, [r11] |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
238 2dc: e59f7b30 ldr r7, =0x800104 ; via 0xe14 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
239 2e0: e59f4b1c ldr r4, =0x800518 ; via 0xe04 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
240 2e4: e5d40008 ldrb r0, [r4, #8] ; read 800520 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
241 2e8: e5971000 ldr r1, [r7] ; read 800104 |
1
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
242 2ec: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
243 2f0: eb00044c bl 0x1428 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
244 2f4: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
245 2f8: 0a0000fc beq 0x6f0 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
246 2fc: e5ddc002 ldrb r12, [sp, #2] |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
247 300: e25cc061 subs r12, r12, #97 ; 0x61 'a' |
1
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
248 304: 0a000104 beq 0x71c |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
249 308: e25cc001 subs r12, r12, #1 ; 0x1 'b' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
250 30c: 0a0000ee beq 0x6cc |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
251 310: e25cc001 subs r12, r12, #1 ; 0x1 'c' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
252 314: 0a0000e1 beq 0x6a0 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
253 318: e25cc006 subs r12, r12, #6 ; 0x6 'i' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
254 31c: 0a0000dc beq 0x694 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
255 320: e25cc007 subs r12, r12, #7 ; 0x7 'p' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
256 324: 0a0000b8 beq 0x60c |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
257 328: e25cc007 subs r12, r12, #7 ; 0x7 'w' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
258 32c: 1a0000fc bne 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
259 ; got 'w' |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
260 ; R4=0x800518, byte at 80053C used for something, init to 0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
261 330: e5c45018 strb r5, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
262 334: e3a0a000 mov r10, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
263 338: e3a06000 mov r6, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
264 33c: ea000015 b 0x398 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
265 340: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
266 344: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
267 348: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
268 34c: eb000435 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
269 350: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
270 354: 0a0000e5 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
271 358: e5ddc002 ldrb r12, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
272 35c: e35c003c cmp r12, #60 ; 0x3c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
273 360: 0a000001 beq 0x36c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
274 364: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
275 368: e5c4c018 strb r12, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
276 36c: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
277 370: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
278 374: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
279 378: eb00042a bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
280 37c: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
281 380: 0a0000da beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
282 384: e5ddc002 ldrb r12, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
283 388: e35c0077 cmp r12, #119 ; 0x77 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
284 38c: 0a000001 beq 0x398 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
285 390: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
286 394: e5c4c018 strb r12, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
287 398: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
288 39c: e5971000 ldr r1, [r7] |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
289 3a0: e1a0200d mov r2, sp |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
290 3a4: eb00041f bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
291 3a8: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
292 3ac: 0a0000cf beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
293 3b0: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
294 3b4: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
295 3b8: e28d2001 add r2, sp, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
296 3bc: eb000419 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
297 3c0: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
298 3c4: 0a0000c9 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
299 3c8: e5dd0000 ldrb r0, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
300 3cc: e5ddc001 ldrb r12, [sp, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
301 3d0: e150000c cmp r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
302 3d4: 1a000000 bne 0x3dc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
303 3d8: e3a0a001 mov r10, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
304 3dc: e5dd0000 ldrb r0, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
305 3e0: e5ddc001 ldrb r12, [sp, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
306 3e4: e150000c cmp r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
307 3e8: ca00007c bgt 0x5e0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
308 3ec: e5ddc001 ldrb r12, [sp, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
309 3f0: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
310 3f4: 0a000079 beq 0x5e0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
311 3f8: e5ddc000 ldrb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
312 3fc: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
313 400: 0a000076 beq 0x5e0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
314 404: e3a08002 mov r8, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
315 408: e3a05000 mov r5, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
316 40c: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
317 410: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
318 414: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
319 418: eb000402 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
320 41c: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
321 420: 0a0000b2 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
322 424: e5ddc002 ldrb r12, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
323 428: e18cc405 orr r12, r12, r5, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
324 42c: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
325 430: e1a0582c mov r5, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
326 434: e2588001 subs r8, r8, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
327 438: 1afffff3 bne 0x40c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
328 43c: e3a09004 mov r9, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
329 440: e3a08000 mov r8, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
330 444: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
331 448: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
332 44c: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
333 450: eb0003f4 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
334 454: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
335 458: 0a0000a4 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
336 45c: e5ddc002 ldrb r12, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
337 460: e18c8408 orr r8, r12, r8, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
338 464: e2599001 subs r9, r9, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
339 468: 1afffff5 bne 0x444 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
340 46c: e59fc9a4 ldr r12, [pc, #2468] ; 0xe18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
341 470: e158000c cmp r8, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
342 474: 3a00004e bcc 0x5b4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
343 478: e59f099c ldr r0, [pc, #2460] ; 0xe1c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
344 47c: e080c00c add r12, r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
345 480: e158000c cmp r8, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
346 484: 8a00004a bhi 0x5b4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
347 488: e085c006 add r12, r5, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
348 48c: e35c0ffe cmp r12, #1016 ; 0x3f8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
349 490: aa000037 bge 0x574 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
350 494: e59fc970 ldr r12, [pc, #2416] ; 0xe0c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
351 498: e5dd0000 ldrb r0, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
352 49c: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
353 4a0: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
354 4a4: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
355 4a8: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
356 4ac: e5dd0001 ldrb r0, [sp, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
357 4b0: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
358 4b4: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
359 4b8: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
360 4bc: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
361 4c0: e1a00425 mov r0, r5, lsr #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
362 4c4: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
363 4c8: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
364 4cc: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
365 4d0: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
366 4d4: e7c6500c strb r5, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
367 4d8: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
368 4dc: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
369 4e0: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
370 4e4: e1a00c28 mov r0, r8, lsr #24 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
371 4e8: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
372 4ec: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
373 4f0: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
374 4f4: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
375 4f8: e1a00828 mov r0, r8, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
376 4fc: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
377 500: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
378 504: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
379 508: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
380 50c: e1a00428 mov r0, r8, lsr #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
381 510: e7c6000c strb r0, [r6, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
382 514: e2860001 add r0, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
383 518: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
384 51c: e1a06820 mov r6, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
385 520: e086900c add r9, r6, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
386 524: e5c98000 strb r8, [r9] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
387 528: e286c001 add r12, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
388 52c: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
389 530: e1a0682c mov r6, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
390 534: e3550000 cmp r5, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
391 538: 0a000018 beq 0x5a0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
392 53c: e085c006 add r12, r5, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
393 540: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
394 544: e1a0682c mov r6, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
395 548: e2899001 add r9, r9, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
396 54c: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
397 550: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
398 554: e1a02009 mov r2, r9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
399 558: eb0003b2 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
400 55c: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
401 560: 0a000062 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
402 564: e2899001 add r9, r9, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
403 568: e2555001 subs r5, r5, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
404 56c: 1afffff6 bne 0x54c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
405 570: ea00000a b 0x5a0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
406 574: e285c001 add r12, r5, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
407 578: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
408 57c: e1a0582c mov r5, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
409 580: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
410 584: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
411 588: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
412 58c: eb0003a5 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
413 590: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
414 594: 0a000055 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
415 598: e2555001 subs r5, r5, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
416 59c: 1afffff7 bne 0x580 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
417 5a0: e35a0000 cmp r10, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
418 5a4: 0affff65 beq 0x340 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
419 5a8: e3a0c003 mov r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
420 5ac: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
421 5b0: ea00005b b 0x724 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
422 5b4: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
423 5b8: e5c4c018 strb r12, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
424 5bc: e3a0c003 mov r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
425 5c0: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
426 5c4: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
427 5c8: e59f1850 ldr r1, [pc, #2128] ; 0xe20 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
428 5cc: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
429 5d0: eb000394 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
430 5d4: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
431 5d8: 0afffff9 beq 0x5c4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
432 5dc: ea000050 b 0x724 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
433 5e0: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
434 5e4: e5c4c018 strb r12, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
435 5e8: e3a0c003 mov r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
436 5ec: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
437 5f0: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
438 5f4: e59f1824 ldr r1, [pc, #2084] ; 0xe20 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
439 5f8: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
440 5fc: eb000389 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
441 600: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
442 604: 0afffff9 beq 0x5f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
443 608: ea000045 b 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
444 ; got 'p' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
445 60c: e59f67f8 ldr r6, [pc, #2040] ; 0xe0c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
446 610: e3a08009 mov r8, #9 ; 0x9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
447 614: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
448 618: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
449 61c: e1a02006 mov r2, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
450 620: eb000380 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
451 624: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
452 628: 0a000030 beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
453 62c: e2866001 add r6, r6, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
454 630: e2588001 subs r8, r8, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
455 634: 1afffff6 bne 0x614 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
456 638: e59fc7cc ldr r12, [pc, #1996] ; 0xe0c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
457 63c: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
458 640: e5c40000 strb r0, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
459 644: e5dc0001 ldrb r0, [r12, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
460 648: e5c40009 strb r0, [r4, #9] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
461 64c: e1c450ba strh r5, [r4, #10] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
462 650: e5dc1003 ldrb r1, [r12, #3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
463 654: e5dc0002 ldrb r0, [r12, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
464 658: e1810400 orr r0, r1, r0, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
465 65c: e1c400ba strh r0, [r4, #10] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
466 660: e5dc0004 ldrb r0, [r12, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
467 664: e5c4000d strb r0, [r4, #13] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
468 668: e5dc0006 ldrb r0, [r12, #6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
469 66c: e5dc1005 ldrb r1, [r12, #5] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
470 670: e1801401 orr r1, r0, r1, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
471 674: e5dc0007 ldrb r0, [r12, #7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
472 678: e1800401 orr r0, r0, r1, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
473 67c: e5dcc008 ldrb r12, [r12, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
474 680: e18cc400 orr r12, r12, r0, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
475 684: e584c004 str r12, [r4, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
476 688: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
477 68c: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
478 690: ea000023 b 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
479 ; got 'i' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
480 694: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
481 698: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
482 69c: ea000020 b 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
483 ; got 'c' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
484 6a0: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
485 6a4: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
486 6a8: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
487 6ac: eb00035d bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
488 6b0: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
489 6b4: 0a00000d beq 0x6f0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
490 6b8: e5ddc002 ldrb r12, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
491 6bc: e1c4c0be strh r12, [r4, #14] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
492 6c0: e3a0c004 mov r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
493 6c4: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
494 6c8: ea000015 b 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
495 ; got 'b' |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
496 ; R4=0x800518 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
497 6cc: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
498 6d0: e584c014 str r12, [r4, #20] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
499 6d4: e3a05004 mov r5, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
500 6d8: e5d40008 ldrb r0, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
501 6dc: e5971000 ldr r1, [r7] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
502 6e0: e28d2002 add r2, sp, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
503 6e4: eb00034f bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
504 6e8: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
505 6ec: 1a000001 bne 0x6f8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
506 6f0: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
507 6f4: ea00000b b 0x728 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
508 6f8: e5dd0002 ldrb r0, [sp, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
509 6fc: e594c014 ldr r12, [r4, #20] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
510 700: e180c40c orr r12, r0, r12, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
511 704: e584c014 str r12, [r4, #20] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
512 708: e2555001 subs r5, r5, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
513 70c: 1afffff1 bne 0x6d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
514 710: e3a0c006 mov r12, #6 ; 0x6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
515 714: e5cbc000 strb r12, [r11] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
516 718: ea000001 b 0x724 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
517 ; got 'a' |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
518 71c: e3a0c005 mov r12, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
519 720: e5cbc000 strb r12, [r11] |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
520 ; common return for 'got something', including invalid (non-understood) commands |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
521 724: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
522 728: e28dd004 add sp, sp, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
523 72c: e8bd8ff0 ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc} |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
524 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
525 730: e92d43f0 stmdb sp!, {r4, r5, r6, r7, r8, r9, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
526 734: e59f46c8 ldr r4, [pc, #1736] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
527 738: e5d4c018 ldrb r12, [r4, #24] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
528 73c: e35c0001 cmp r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
529 740: 0a00004a beq 0x870 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
530 744: e59f56c0 ldr r5, [pc, #1728] ; 0xe0c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
531 748: e59f66c8 ldr r6, [pc, #1736] ; 0xe18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
532 74c: e3a07000 mov r7, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
533 750: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
534 754: e080c005 add r12, r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
535 758: e28cc001 add r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
536 75c: e7d02005 ldrb r2, [r0, r5] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
537 760: e5dc1000 ldrb r1, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
538 764: e1520001 cmp r2, r1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
539 768: 1a000000 bne 0x770 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
540 76c: e3a07001 mov r7, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
541 770: e5dc2002 ldrb r2, [r12, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
542 774: e5dc1001 ldrb r1, [r12, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
543 778: e0821401 add r1, r2, r1, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
544 77c: e1a01801 mov r1, r1, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
545 780: e1a01821 mov r1, r1, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
546 784: e5dc3004 ldrb r3, [r12, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
547 788: e5dc2003 ldrb r2, [r12, #3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
548 78c: e0832402 add r2, r3, r2, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
549 790: e5dc3005 ldrb r3, [r12, #5] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
550 794: e0832402 add r2, r3, r2, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
551 798: e5dcc006 ldrb r12, [r12, #6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
552 79c: e08c2402 add r2, r12, r2, lsl #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
553 7a0: e202c0ff and r12, r2, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
554 7a4: e081300c add r3, r1, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
555 7a8: e1a0c422 mov r12, r2, lsr #8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
556 7ac: e20cc0ff and r12, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
557 7b0: e08c3003 add r3, r12, r3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
558 7b4: e1a0c822 mov r12, r2, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
559 7b8: e20cc0ff and r12, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
560 7bc: e08cc003 add r12, r12, r3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
561 7c0: e08ccc22 add r12, r12, r2, lsr #24 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
562 7c4: e28cc005 add r12, r12, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
563 7c8: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
564 7cc: e1a0882c mov r8, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
565 7d0: e3a03000 mov r3, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
566 7d4: e1520006 cmp r2, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
567 7d8: 3a000003 bcc 0x7ec |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
568 7dc: e59fc638 ldr r12, [pc, #1592] ; 0xe1c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
569 7e0: e08cc006 add r12, r12, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
570 7e4: e152000c cmp r2, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
571 7e8: 9a000001 bls 0x7f4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
572 7ec: e383c001 orr r12, r3, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
573 7f0: e20c30ff and r3, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
574 7f4: e3530000 cmp r3, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
575 7f8: 1a00001d bne 0x874 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
576 7fc: e3a09000 mov r9, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
577 800: e3510000 cmp r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
578 804: 0a00000b beq 0x838 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
579 808: e089c000 add r12, r9, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
580 80c: e085c00c add r12, r5, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
581 810: e5dcc008 ldrb r12, [r12, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
582 814: e4c2c001 strb r12, [r2], #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
583 818: e08cc008 add r12, r12, r8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
584 81c: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
585 820: e1a0882c mov r8, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
586 824: e289c001 add r12, r9, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
587 828: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
588 82c: e1a0982c mov r9, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
589 830: e2511001 subs r1, r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
590 834: 1afffff3 bne 0x808 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
591 838: e3a0c0ff mov r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
592 83c: e1ccc008 bic r12, r12, r8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
593 840: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
594 844: e1a0882c mov r8, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
595 848: e1d4c1b0 ldrh r12, [r4, #16] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
596 84c: e088c00c add r12, r8, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
597 850: e1c4c1b0 strh r12, [r4, #16] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
598 854: e080c009 add r12, r0, r9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
599 858: e28cc008 add r12, r12, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
600 85c: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
601 860: e1a0082c mov r0, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
602 864: e3570000 cmp r7, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
603 868: 0affffb9 beq 0x754 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
604 86c: ea000000 b 0x874 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
605 870: e3a03002 mov r3, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
606 874: e5c43019 strb r3, [r4, #25] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
607 878: e3530000 cmp r3, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
608 87c: 0a000008 beq 0x8a4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
609 880: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
610 884: ebfffe2c bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
611 888: e5d41008 ldrb r1, [r4, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
612 88c: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
613 890: eb0002d0 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
614 894: e1a00004 mov r0, r4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
615 898: ebfffe1f bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
616 89c: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
617 8a0: e8bd83f0 ldmia sp!, {r4, r5, r6, r7, r8, r9, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
618 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
619 8a4: e3a00003 mov r0, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
620 8a8: ebfffe23 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
621 8ac: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
622 8b0: e8bd83f0 ldmia sp!, {r4, r5, r6, r7, r8, r9, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
623 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
624 8b4: e92d4070 stmdb sp!, {r4, r5, r6, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
625 8b8: e24dd008 sub sp, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
626 8bc: e59f4560 ldr r4, [pc, #1376] ; 0xe24 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
627 8c0: e5d4c000 ldrb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
628 8c4: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
629 8c8: 0a000102 beq 0xcd8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
630 8cc: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
631 8d0: 0a00008a beq 0xb00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
632 8d4: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
633 8d8: 0a000047 beq 0x9fc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
634 8dc: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
635 8e0: 1a000145 bne 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
636 8e4: e250c001 subs r12, r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
637 8e8: 0a00003c beq 0x9e0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
638 8ec: e25cc002 subs r12, r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
639 8f0: 0a00002f beq 0x9b4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
640 8f4: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
641 8f8: 0a000022 beq 0x988 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
642 8fc: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
643 900: 0a000017 beq 0x964 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
644 904: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
645 908: 1a00013b bne 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
646 90c: e59f54f0 ldr r5, [pc, #1264] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
647 910: e59f0500 ldr r0, [pc, #1280] ; 0xe18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
648 914: e595c014 ldr r12, [r5, #20] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
649 918: e15c0000 cmp r12, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
650 91c: 3a000006 bcc 0x93c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
651 920: e59f14f4 ldr r1, [pc, #1268] ; 0xe1c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
652 924: e0810000 add r0, r1, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
653 928: e15c0000 cmp r12, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
654 92c: 8a000002 bhi 0x93c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
655 930: e3a00008 mov r0, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
656 934: ebfffe00 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
657 938: ebfffdeb bl 0xec |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
658 93c: e3a00009 mov r0, #9 ; 0x9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
659 940: ebfffdfd bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
660 944: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
661 948: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
662 94c: eb0002a1 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
663 950: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
664 954: ebfffdf0 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
665 958: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
666 95c: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
667 960: ea000125 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
668 964: e59f5498 ldr r5, [pc, #1176] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
669 968: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
670 96c: ebfffdea bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
671 970: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
672 974: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
673 978: eb000296 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
674 97c: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
675 980: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
676 984: ea00011c b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
677 988: e3a00006 mov r0, #6 ; 0x6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
678 98c: ebfffdea bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
679 990: e59f546c ldr r5, [pc, #1132] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
680 994: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
681 998: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
682 99c: eb00028d bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
683 9a0: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
684 9a4: ebfffddc bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
685 9a8: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
686 9ac: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
687 9b0: ea000111 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
688 9b4: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
689 9b8: ebfffddf bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
690 9bc: e59f5440 ldr r5, [pc, #1088] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
691 9c0: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
692 9c4: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
693 9c8: eb000282 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
694 9cc: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
695 9d0: ebfffdd1 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
696 9d4: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
697 9d8: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
698 9dc: ea000106 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
699 9e0: e59f041c ldr r0, [pc, #1052] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
700 9e4: ebfffdcc bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
701 9e8: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
702 9ec: ebfffdd2 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
703 9f0: e3a0c004 mov r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
704 9f4: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
705 9f8: ea0000ff b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
706 9fc: e250c001 subs r12, r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
707 a00: 0a000037 beq 0xae4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
708 a04: e25cc002 subs r12, r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
709 a08: 0a000031 beq 0xad4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
710 a0c: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
711 a10: 0a000017 beq 0xa74 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
712 a14: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
713 a18: 0a00000c beq 0xa50 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
714 a1c: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
715 a20: 1a0000f5 bne 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
716 a24: e3a00009 mov r0, #9 ; 0x9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
717 a28: ebfffdc3 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
718 a2c: e59f53d0 ldr r5, [pc, #976] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
719 a30: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
720 a34: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
721 a38: eb000266 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
722 a3c: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
723 a40: ebfffdb5 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
724 a44: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
725 a48: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
726 a4c: ea0000ea b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
727 a50: e59f53ac ldr r5, [pc, #940] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
728 a54: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
729 a58: ebfffdaf bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
730 a5c: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
731 a60: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
732 a64: eb00025b bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
733 a68: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
734 a6c: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
735 a70: ea0000e1 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
736 a74: e59fc388 ldr r12, [pc, #904] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
737 a78: e3a010ff mov r1, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
738 a7c: e1dc01b0 ldrh r0, [r12, #16] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
739 a80: e1c10000 bic r0, r1, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
740 a84: e1dcc0be ldrh r12, [r12, #14] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
741 a88: e20cc0ff and r12, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
742 a8c: e150000c cmp r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
743 a90: 1a000004 bne 0xaa8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
744 a94: e3a00005 mov r0, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
745 a98: ebfffda7 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
746 a9c: e3a0c004 mov r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
747 aa0: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
748 aa4: ea0000d4 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
749 aa8: e3a00006 mov r0, #6 ; 0x6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
750 aac: ebfffda2 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
751 ab0: e59f534c ldr r5, [pc, #844] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
752 ab4: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
753 ab8: ebfffd97 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
754 abc: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
755 ac0: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
756 ac4: eb000243 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
757 ac8: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
758 acc: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
759 ad0: ea0000c9 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
760 ad4: ebffff15 bl 0x730 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
761 ad8: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
762 adc: 0a000038 beq 0xbc4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
763 ae0: ea00003a b 0xbd0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
764 ae4: e59f0318 ldr r0, [pc, #792] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
765 ae8: ebfffd8b bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
766 aec: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
767 af0: ebfffd91 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
768 af4: e3a0c003 mov r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
769 af8: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
770 afc: ea0000be b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
771 b00: e250c001 subs r12, r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
772 b04: 0a00006c beq 0xcbc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
773 b08: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
774 b0c: 0a000032 beq 0xbdc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
775 b10: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
776 b14: 0a000024 beq 0xbac |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
777 b18: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
778 b1c: 0a000017 beq 0xb80 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
779 b20: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
780 b24: 0a00000c beq 0xb5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
781 b28: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
782 b2c: 1a0000b2 bne 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
783 b30: e3a00009 mov r0, #9 ; 0x9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
784 b34: ebfffd80 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
785 b38: e59f52c4 ldr r5, [pc, #708] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
786 b3c: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
787 b40: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
788 b44: eb000223 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
789 b48: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
790 b4c: ebfffd72 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
791 b50: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
792 b54: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
793 b58: ea0000a7 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
794 b5c: e59f52a0 ldr r5, [pc, #672] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
795 b60: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
796 b64: ebfffd6c bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
797 b68: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
798 b6c: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
799 b70: eb000218 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
800 b74: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
801 b78: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
802 b7c: ea00009e b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
803 b80: e3a00006 mov r0, #6 ; 0x6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
804 b84: ebfffd6c bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
805 b88: e59f5274 ldr r5, [pc, #628] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
806 b8c: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
807 b90: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
808 b94: eb00020f bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
809 b98: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
810 b9c: ebfffd5e bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
811 ba0: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
812 ba4: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
813 ba8: ea000093 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
814 bac: e59f0274 ldr r0, [pc, #628] ; 0xe28 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
815 bb0: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
816 bb4: e1c0c0b0 strh r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
817 bb8: ebfffedc bl 0x730 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
818 bbc: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
819 bc0: 1a000002 bne 0xbd0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
820 bc4: e3a0c003 mov r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
821 bc8: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
822 bcc: ea00008a b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
823 bd0: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
824 bd4: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
825 bd8: ea000087 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
826 bdc: e59f6220 ldr r6, [pc, #544] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
827 be0: e5d6c000 ldrb r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
828 be4: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
829 be8: 0a000011 beq 0xc34 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
830 bec: e35c0001 cmp r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
831 bf0: 0a00000f beq 0xc34 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
832 bf4: e35c0002 cmp r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
833 bf8: 0a00000d beq 0xc34 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
834 bfc: e35c0003 cmp r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
835 c00: 0a00000b beq 0xc34 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
836 c04: e35c0004 cmp r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
837 c08: 0a000009 beq 0xc34 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
838 c0c: e3a00002 mov r0, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
839 c10: ebfffd49 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
840 c14: e5d61008 ldrb r1, [r6, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
841 c18: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
842 c1c: eb0001ed bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
843 c20: e1a00006 mov r0, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
844 c24: ebfffd3c bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
845 c28: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
846 c2c: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
847 c30: ea000071 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
848 c34: e5d6500d ldrb r5, [r6, #13] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
849 c38: e1d6c0ba ldrh r12, [r6, #10] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
850 c3c: e20c001f and r0, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
851 c40: e20000ff and r0, r0, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
852 c44: e1a012ac mov r1, r12, lsr #5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
853 c48: e201101f and r1, r1, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
854 c4c: e20110ff and r1, r1, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
855 c50: e1a0c52c mov r12, r12, lsr #10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
856 c54: e20cc01f and r12, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
857 c58: e20c20ff and r2, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
858 c5c: e205c00f and r12, r5, #15 ; 0xf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
859 c60: e20c30ff and r3, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
860 c64: e1a0c225 mov r12, r5, lsr #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
861 c68: e5cdc000 strb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
862 c6c: eb00006e bl 0xe2c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
863 c70: e5d6c009 ldrb r12, [r6, #9] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
864 c74: e5d6000c ldrb r0, [r6, #12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
865 c78: e20c1003 and r1, r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
866 c7c: e20110ff and r1, r1, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
867 c80: e1a0c12c mov r12, r12, lsr #2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
868 c84: e20cc01f and r12, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
869 c88: e20c20ff and r2, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
870 c8c: eb000098 bl 0xef4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
871 c90: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
872 c94: ebfffd28 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
873 c98: e5d60000 ldrb r0, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
874 c9c: e5d61008 ldrb r1, [r6, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
875 ca0: eb0001cc bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
876 ca4: e59fc168 ldr r12, [pc, #360] ; 0xe14 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
877 ca8: e5960004 ldr r0, [r6, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
878 cac: e58c0000 str r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
879 cb0: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
880 cb4: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
881 cb8: ea00004f b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
882 cbc: e59f0140 ldr r0, [pc, #320] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
883 cc0: ebfffd15 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
884 cc4: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
885 cc8: ebfffd1b bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
886 ccc: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
887 cd0: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
888 cd4: ea000048 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
889 cd8: e250c001 subs r12, r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
890 cdc: 0a000040 beq 0xde4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
891 ce0: e25cc001 subs r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
892 ce4: 0a00000b beq 0xd18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
893 ce8: e24cc001 sub r12, r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
894 cec: e35c0003 cmp r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
895 cf0: 8a000041 bhi 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
896 cf4: e59f5108 ldr r5, [pc, #264] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
897 cf8: e1a00005 mov r0, r5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
898 cfc: ebfffd06 bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
899 d00: e5d51008 ldrb r1, [r5, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
900 d04: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
901 d08: eb0001b2 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
902 d0c: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
903 d10: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
904 d14: ea000038 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
905 d18: e59f60e4 ldr r6, [pc, #228] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
906 d1c: e5d6c000 ldrb r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
907 d20: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
908 d24: 0a00000c beq 0xd5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
909 d28: e35c0001 cmp r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
910 d2c: 0a00000a beq 0xd5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
911 d30: e35c0002 cmp r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
912 d34: 0a000008 beq 0xd5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
913 d38: e35c0003 cmp r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
914 d3c: 0a000006 beq 0xd5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
915 d40: e35c0004 cmp r12, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
916 d44: 0a000004 beq 0xd5c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
917 d48: e3a00002 mov r0, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
918 d4c: ebfffcfa bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
919 d50: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
920 d54: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
921 d58: ea000027 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
922 d5c: e5d6500d ldrb r5, [r6, #13] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
923 d60: e1d6c0ba ldrh r12, [r6, #10] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
924 d64: e20c001f and r0, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
925 d68: e20000ff and r0, r0, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
926 d6c: e1a012ac mov r1, r12, lsr #5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
927 d70: e201101f and r1, r1, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
928 d74: e20110ff and r1, r1, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
929 d78: e1a0c52c mov r12, r12, lsr #10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
930 d7c: e20cc01f and r12, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
931 d80: e20c20ff and r2, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
932 d84: e205c00f and r12, r5, #15 ; 0xf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
933 d88: e20c30ff and r3, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
934 d8c: e1a0c225 mov r12, r5, lsr #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
935 d90: e5cdc000 strb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
936 d94: eb000024 bl 0xe2c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
937 d98: e5d6c009 ldrb r12, [r6, #9] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
938 d9c: e5d6000c ldrb r0, [r6, #12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
939 da0: e20c1003 and r1, r12, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
940 da4: e20110ff and r1, r1, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
941 da8: e1a0c12c mov r12, r12, lsr #2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
942 dac: e20cc01f and r12, r12, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
943 db0: e20c20ff and r2, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
944 db4: eb00004e bl 0xef4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
945 db8: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
946 dbc: ebfffcde bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
947 dc0: e5d60000 ldrb r0, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
948 dc4: e5d61008 ldrb r1, [r6, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
949 dc8: eb000182 bl 0x13d8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
950 dcc: e59f0040 ldr r0, [pc, #64] ; 0xe14 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
951 dd0: e596c004 ldr r12, [r6, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
952 dd4: e580c000 str r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
953 dd8: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
954 ddc: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
955 de0: ea000005 b 0xdfc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
956 de4: e59f0018 ldr r0, [pc, #24] ; 0xe04 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
957 de8: ebfffccb bl 0x11c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
958 dec: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
959 df0: ebfffcd1 bl 0x13c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
960 df4: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
961 df8: e5c4c000 strb r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
962 dfc: e28dd008 add sp, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
963 e00: e8bd8070 ldmia sp!, {r4, r5, r6, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
964 |
12
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
965 ; literal pool |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
966 e04: 00800518 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
967 e08: 00001fcc |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
968 e0c: 0080010c |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
969 e10: 00800520 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
970 e14: 00800104 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
971 e18: 00800750 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
972 e1c: 0007f8af |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
973 e20: 000fffff |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
974 e24: 00800108 |
25b016d16602
boot ROM re: making inroads into the 0x2c8 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
11
diff
changeset
|
975 e28: 00800528 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
976 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
977 ; The following routine performs basic sanity initialization |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
978 ; of the memory map and clocking. |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
979 ; |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
980 ; Arguments: |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
981 ; R0: WS setting for nCS0 (external ROM/flash) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
982 ; R1: WS setting for nCS6 (internal RAM) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
983 ; R2: WS setting for nCS7 (internal ROM) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
984 ; R3: value to be written into bits <3:0> of FFFF:F900 |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
985 ; stack arg: value to be written into bits <7:4> of FFFF:F900 |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
986 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
987 e2c: e92d4070 stmdb sp!, {r4, r5, r6, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
988 e30: e5dd5010 ldrb r5, [sp, #16] |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
989 ; mask all interrupts |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
990 e34: e59fc48c ldr r12, =0xFFFF ; via 0x12c8 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
991 e38: e59f4484 ldr r4, =0xFFFFFA08 ; via 0x12c4 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
992 e3c: e1c4c0b0 strh r12, [r4] ; 1st reg |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
993 e40: e59f4484 ldr r4, =0xFFFFFA0A ; via 0x12cc |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
994 e44: e1c4c0b0 strh r12, [r4] ; 2nd reg |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
995 ; disable the watchdog |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
996 e48: e59f4480 ldr r4, =0xFFFFF804 ; via 0x12d0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
997 e4c: e3a0c0f5 mov r12, #245 ; 0xf5 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
998 e50: e1c4c0b0 strh r12, [r4] ; 1st write |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
999 e54: e3a0c0a0 mov r12, #160 ; 0xa0 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1000 e58: e1c4c0b0 strh r12, [r4] ; 2nd write |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1001 ; write 0x100 into the MCU memory map EXTRA_CONF register (FFFF:FB10) |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1002 ; forces the memory map to internal ROM, all other bits at |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1003 ; listed reset default values |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1004 e5c: e59f4470 ldr r4, =0xFFFFFB10 ; via 0x12d4 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1005 e60: e3a0cc01 mov r12, #256 ; 0x100 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1006 e64: e1c4c0b0 strh r12, [r4] |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1007 ; write 0xFF22 into FFFF:F900 in a convoluted way |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1008 e68: e59f6468 ldr r6, =0xFFFFFD00 ; via 0x12d8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1009 e6c: e3a04b01 mov r4, #1024 ; 0x400 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1010 e70: e3a0c801 mov r12, #65536 ; 0x10000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1011 e74: e24cc0de sub r12, r12, #222 ; 0xde |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1012 e78: e106c0b4 strh r12, [r6, -r4] |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1013 ; DPLL control register written with what looks like the reset default value |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1014 e7c: e59fc45c ldr r12, 0x2002 ; via 0x12e0 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1015 e80: e59f4454 ldr r4, =0xFFFF9800 ; via 0x12dc |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1016 e84: e1c4c0b0 strh r12, [r4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1017 e88: e1b04f8c movs r4, r12, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1018 e8c: 1afffffd bne 0xe88 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1019 ; write 0x1083 into FFFF:FD00 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1020 ; sets the MCU clock to come directly from VTCXO, bypassing DPLL |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1021 e90: e3a0c083 mov r12, #131 ; 0x83 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1022 e94: e28cca01 add r12, r12, #4096 ; 0x1000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1023 e98: e1c6c0b0 strh r12, [r6] |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1024 ; clear bit 6 of FFFF:FD02 (set VCLKOUT-FR to /1) |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1025 e9c: e1d6c0b2 ldrh r12, [r6, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1026 ea0: e20c40bf and r4, r12, #191 ; 0xbf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1027 ea4: e20cccff and r12, r12, #65280 ; 0xff00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1028 ea8: e184c00c orr r12, r4, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1029 eac: e1c6c0b2 strh r12, [r6, #2] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1030 ; program nCS0: WS as given by R0, 1 dummy cycle, enable writes |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1031 eb0: e3a0cc02 mov r12, #512 ; 0x200 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1032 eb4: e200001f and r0, r0, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1033 eb8: e3800e2a orr r0, r0, #672 ; 0x2a0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1034 ebc: e10600bc strh r0, [r6, -r12] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1035 ; program nCS6 (int RAM): WS as given by R1, common sense values for the rest |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1036 ec0: e3a0cf7d mov r12, #500 ; 0x1f4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1037 ec4: e201001f and r0, r1, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1038 ec8: e38000c0 orr r0, r0, #192 ; 0xc0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1039 ecc: e10600bc strh r0, [r6, -r12] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1040 ; program nCS7 (int ROM): same as nCS6, but WS as given by R2 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1041 ed0: e3a0cf7e mov r12, #504 ; 0x1f8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1042 ed4: e202001f and r0, r2, #31 ; 0x1f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1043 ed8: e38000c0 orr r0, r0, #192 ; 0xc0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1044 edc: e10600bc strh r0, [r6, -r12] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1045 ; program FFFF:F900 with {FF,stack_arg,R3} |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1046 ee0: e3a0cb01 mov r12, #1024 ; 0x400 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1047 ee4: e1830205 orr r0, r3, r5, lsl #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1048 ee8: e3800cff orr r0, r0, #65280 ; 0xff00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1049 eec: e10600bc strh r0, [r6, -r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1050 ef0: e8bd8070 ldmia sp!, {r4, r5, r6, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1051 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1052 ; The routine at 0xef4 gets called from main() after a '<' character |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1053 ; has been received and autoboot thereby interrupted in the |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1054 ; autoboot-enabled flash state. |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1055 ; |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1056 ; Called with: |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1057 ; R0 = the byte from 800524 |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1058 ; R1 = 1 (value for the PLL_DIV field) |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1059 ; R2 = 2 (value for the PLL_MULT field) |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1060 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1061 ef4: e92d4070 stmdb sp!, {r4, r5, r6, lr} |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1062 ef8: e59fc3e4 ldr r12, =0xFFFFF900 ; via 0x12e4 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1063 efc: e1dc40b0 ldrh r4, [r12] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1064 ; original value of FFFF:F900 saved in R4 |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1065 ; now set it to FF22, just like the 0xe2c init routine did |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1066 f00: e59f33d0 ldr r3, =0xFFFFFD00 ; via 0x12d8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1067 f04: e3a05b01 mov r5, #1024 ; 0x400 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1068 f08: e3a0c801 mov r12, #65536 ; 0x10000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1069 f0c: e24cc0de sub r12, r12, #222 ; 0xde |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1070 f10: e103c0b5 strh r12, [r3, -r5] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1071 ; write 0x2002 to FFFF:9800, again just like 0xe2c did |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1072 f14: e59f63c0 ldr r6, =0xFFFF9800 ; via 0x12dc |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1073 f18: e59fc3c0 ldr r12, =0x2002 ; via 0x12e0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1074 f1c: e1c6c0b0 strh r12, [r6] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1075 ; the following 2 instructions would cause this code to hang |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1076 ; in a tight loop if the least significant bit of the above constant (0x2002) |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1077 ; were 1 - but it is 0... |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1078 f20: e1b05f8c movs r5, r12, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1079 f24: 1afffffd bne 0xf20 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1080 ; now write the same thing into FFFF:9800, but with the PLL_DIV and |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1081 ; PLL_MULT values from the function arguments ORed in |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1082 f28: e181c102 orr r12, r1, r2, lsl #2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1083 f2c: e1a0c28c mov r12, r12, lsl #5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1084 f30: e38cc002 orr r12, r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1085 f34: e38cca02 orr r12, r12, #8192 ; 0x2000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1086 f38: e1c6c0b0 strh r12, [r6] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1087 ; now look if we are fed with 13 or 26 MHz |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1088 f3c: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1089 f40: 0a000009 beq 0xf6c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1090 f44: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1091 f48: 1a000006 bne 0xf68 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1092 ; 0 in R0, meaning 26 MHz in - set bit 6 in FFFF:FD02, selecting /2 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1093 f4c: e1d3c0b2 ldrh r12, [r3, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1094 f50: e38cc040 orr r12, r12, #64 ; 0x40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1095 f54: e1c3c0b2 strh r12, [r3, #2] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1096 ; write 10A1 into FFFF:FD00, setting ARM clock to DPLL_CLKOUT/2 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1097 f58: e3a0c0a1 mov r12, #161 ; 0xa1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1098 f5c: e28cca01 add r12, r12, #4096 ; 0x1000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1099 f60: e1c3c0b0 strh r12, [r3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1100 f64: ea000008 b 0xf8c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1101 f68: eafffffe b 0xf68 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1102 ; 1 in R0, meaning 13 MHz in - clear bit 6 in FFFF:FD02, selecting /1 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1103 f6c: e1d3c0b2 ldrh r12, [r3, #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1104 f70: e20c00bf and r0, r12, #191 ; 0xbf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1105 f74: e20cccff and r12, r12, #65280 ; 0xff00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1106 f78: e180c00c orr r12, r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1107 f7c: e1c3c0b2 strh r12, [r3, #2] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1108 ; write 1081 into FFFF:FD00, setting ARM clock to DPLL_CLKOUT/1 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1109 f80: e3a0c081 mov r12, #129 ; 0x81 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1110 f84: e28cca01 add r12, r12, #4096 ; 0x1000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1111 f88: e1c3c0b0 strh r12, [r3] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1112 ; the two branches rejoin |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1113 ; set bit 4 in FFFF:9800 - enable PLL |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1114 f8c: e1d6c0b0 ldrh r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1115 f90: e38cc010 orr r12, r12, #16 ; 0x10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1116 f94: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1117 f98: e1a0c82c mov r12, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1118 f9c: e1c6c0b0 strh r12, [r6] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1119 ; the following 2 instructions would cause a dead hang if |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1120 ; bit 0 were already set in FFFF:9800, i.e., if the PLL were |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1121 ; already locked |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1122 fa0: e1b00f8c movs r0, r12, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1123 fa4: 1afffffd bne 0xfa0 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1124 ; restore saved value of FFFF:F900 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1125 fa8: e3a0cb01 mov r12, #1024 ; 0x400 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1126 fac: e10340bc strh r4, [r3, -r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1127 fb0: e8bd8070 ldmia sp!, {r4, r5, r6, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1128 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1129 ; Routine 0xfb4 gets called from main() where the boot code is giving |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1130 ; the UARTs a chance to interrupt the autoboot process before transferring |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1131 ; control to the nCS0 image. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1132 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1133 ; Arguments: both R0 and R1 point to byte variables acting as additional |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1134 ; function outputs. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1135 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1136 ; If a '<' character is received on either UART, the function returns |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1137 ; without further fuss. If nothing was received on either UART, it |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1138 ; also returns without further fuss. However, if the "wrong" byte value |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1139 ; was received on either UART, the function flips the VCLKOUT_DIV2 bit |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1140 ; in the FFFF:FD02 register - it is the boot code's way of figuring out |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1141 ; whether the input clock is 13 or 26 MHz. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1142 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1143 ; Return values: |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1144 ; In R0: 1 if '<' received, 0 otherwise |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1145 ; In *R0: UART ID if '<' received, FF otherwise |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1146 ; In *R1: final state of the 800534 byte variable |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1147 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1148 ; The latter variable records the state of the divide-by-2. On the first |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1149 ; try, the divide-by-2 is enabled, and the variable contains 0. When this |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1150 ; function disables the /2, the variable is set to 1. It keeps toggling |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1151 ; back and forth as wrong bytes come in. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1152 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1153 fb4: e3a0c0ff mov r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1154 fb8: e5c0c000 strb r12, [r0] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1155 ; check the MODEM UART first |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1156 fbc: e59fc324 ldr r12, =0xFFFF5000 ; via 0x12e8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1157 fc0: e5dc2805 ldrb r2, [r12, #2053] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1158 fc4: e1b02f82 movs r2, r2, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1159 fc8: 1a000001 bne 0xfd4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1160 fcc: e3a02000 mov r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1161 fd0: ea000003 b 0xfe4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1162 fd4: e5dc2800 ldrb r2, [r12, #2048] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1163 fd8: e352003c cmp r2, #60 ; 0x3c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1164 fdc: 0a000024 beq 0x1074 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1165 fe0: e3a02001 mov r2, #1 ; 0x1 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1166 ; Control gets here if no '<' was received on the MODEM UART. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1167 ; R2 contains 1 if some other byte value was received, or 0 if nothing. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1168 ; Now check the IrDA UART. |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1169 fe4: e5dc3005 ldrb r3, [r12, #5] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1170 fe8: e1b03f83 movs r3, r3, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1171 fec: 1a000002 bne 0xffc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1172 ff0: e3520001 cmp r2, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1173 ff4: 0a000003 beq 0x1008 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1174 ff8: ea000015 b 0x1054 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1175 ffc: e5dcc000 ldrb r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1176 1000: e35c003c cmp r12, #60 ; 0x3c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1177 1004: 0a000017 beq 0x1068 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1178 ; control gets here if the "wrong" byte value was received on either UART |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1179 1008: e59fc2dc ldr r12, =0x800534 ; via 0x12ec |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1180 100c: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1181 1010: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1182 1014: 1a000008 bne 0x103c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1183 1018: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1184 101c: e5cc0000 strb r0, [r12] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1185 1020: e59f02c8 ldr r0, =0xFFFFFD02 ; via 0x12f0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1186 1024: e1d0c0b0 ldrh r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1187 1028: e20c20bf and r2, r12, #191 ; 0xbf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1188 102c: e20cccff and r12, r12, #65280 ; 0xff00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1189 1030: e182c00c orr r12, r2, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1190 1034: e1c0c0b0 strh r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1191 1038: ea000005 b 0x1054 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1192 103c: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1193 1040: e5cc0000 strb r0, [r12] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1194 1044: e59fc2a4 ldr r12, =0xFFFFFD02 ; via 0x12f0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1195 1048: e1dc00b0 ldrh r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1196 104c: e3800040 orr r0, r0, #64 ; 0x40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1197 1050: e1cc00b0 strh r0, [r12] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1198 1054: e59fc290 ldr r12, =0x800534 ; via 0x12ec |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1199 1058: e5dcc000 ldrb r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1200 105c: e5c1c000 strb r12, [r1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1201 1060: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1202 1064: e12fff1e bx lr |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1203 ; control gets here if a '<' character was received on the IrDA UART |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1204 1068: e3a0c001 mov r12, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1205 106c: e5c0c000 strb r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1206 1070: ea000001 b 0x107c |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1207 ; control gets here if a '<' character was received on the MODEM UART |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1208 1074: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1209 1078: e5c0c000 strb r12, [r0] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1210 107c: e59fc268 ldr r12, =0x800534 ; via 0x12ec |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1211 1080: e5dcc000 ldrb r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1212 1084: e5c1c000 strb r12, [r1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1213 1088: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1214 108c: e12fff1e bx lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1215 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1216 ; 0x1090 - the main routine for the UART download mode. Called with R0=0 |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1217 ; if there is no valid image in flash, or with R0=1 if a valid image is |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1218 ; present, but the autoboot was interrupted by '<' coming in on a UART. |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1219 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1220 1090: e92d4070 stmdb sp!, {r4, r5, r6, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1221 1094: e24dd00c sub sp, sp, #12 ; 0xc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1222 1098: e1a05000 mov r5, r0 |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1223 109c: e59f4250 ldr r4, =0x800518 ; via 0x12f4 |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1224 10a0: e2846008 add r6, r4, #8 ; R6=0x800520 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1225 10a4: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1226 10a8: e5cdc008 strb r12, [sp, #8] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1227 ; If the argument was 0, meaning that no valid image was found in the |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1228 ; flash and no wait for '<' was done, that logic is repeated here, |
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1229 ; exactly as in main() when the flash does contain a bootable image. |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1230 10ac: e3550000 cmp r5, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1231 10b0: 1a000009 bne 0x10dc |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1232 10b4: e59f123c ldr r1, =0x800524 ; via 0x12f8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1233 10b8: e1a00006 mov r0, r6 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1234 10bc: ebffffbc bl 0xfb4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1235 10c0: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1236 10c4: 1a000004 bne 0x10dc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1237 10c8: e5d4000c ldrb r0, [r4, #12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1238 10cc: e3a01001 mov r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1239 10d0: e3a02002 mov r2, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1240 10d4: ebffff86 bl 0xef4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1241 10d8: ea000001 b 0x10e4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1242 10dc: e3550001 cmp r5, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1243 10e0: 1afffff1 bne 0x10ac |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1244 ; no-image and interrupt-boot code paths merge here |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1245 10e4: e28d0008 add r0, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1246 10e8: ebfffc76 bl 0x2c8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1247 10ec: e5ddc008 ldrb r12, [sp, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1248 10f0: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1249 10f4: 0a00000d beq 0x1130 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1250 10f8: e5dd0008 ldrb r0, [sp, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1251 10fc: ebfffdec bl 0x8b4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1252 1100: ea00000a b 0x1130 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1253 1104: e5d4000c ldrb r0, [r4, #12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1254 1108: e3a01001 mov r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1255 110c: e3a02002 mov r2, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1256 1110: ebffff77 bl 0xef4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1257 1114: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1258 1118: e5cdc000 strb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1259 111c: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1260 1120: e3a01000 mov r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1261 1124: e3a02000 mov r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1262 1128: e3a03002 mov r3, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1263 112c: ebffff3e bl 0xe2c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1264 1130: e5d40008 ldrb r0, [r4, #8] |
11
a51729642295
boot ROM re: got to the 0x1090 routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
8
diff
changeset
|
1265 1134: e59fc1c0 ldr r12, =0x800104 ; via 0x12fc |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1266 1138: e59c1000 ldr r1, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1267 113c: e28d2009 add r2, sp, #9 ; 0x9 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1268 1140: eb0000b8 bl 0x1428 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1269 1144: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1270 1148: 1afffff8 bne 0x1130 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1271 114c: e5ddc009 ldrb r12, [sp, #9] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1272 1150: e35c003c cmp r12, #60 ; 0x3c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1273 1154: 1afffff5 bne 0x1130 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1274 1158: e28d0008 add r0, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1275 115c: ebfffc59 bl 0x2c8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1276 1160: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1277 1164: 1affffe6 bne 0x1104 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1278 1168: e5ddc008 ldrb r12, [sp, #8] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1279 116c: e35c0000 cmp r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1280 1170: 1affffe0 bne 0x10f8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1281 1174: eaffffed b 0x1130 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1282 |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1283 ; This function takes a few peeks at the external boot memory on nCS0. |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1284 ; It appears that the intent is to return 1 if a valid image is present |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1285 ; in the external flash, or 0 otherwise. |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1286 ; |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1287 ; The first check is the 32-bit word at 0x2000. If that word equals 0, |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1288 ; the function returns 1. Otherwise, that word is expected to equal 1: |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1289 ; if it doesn't, the function returns 0. |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1290 ; |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1291 ; If the word at 2000 is 00000001 (like it is on Closedmoko phones, |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1292 ; for example), the IRQ vector in the flash image (where the ARM core |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1293 ; would vector if the Calypso register were flipped to put nCS0 at 0x0) |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1294 ; is checked. If the vector location contains an unconditional branch |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1295 ; instruction (0xEAxxxxxx) and the 32-bit instruction word at the target |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1296 ; of that branch is something other than 0xFFFFFFFF, the function |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1297 ; returns 1; otherwise it returns 0. |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1298 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1299 1178: e3a0ca02 mov r12, #8192 ; 0x2000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1300 117c: e59cc000 ldr r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1301 1180: e35c0000 cmp r12, #0 ; 0x0 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1302 1184: 0a000011 beq 0x11d0 ; return 1 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1303 1188: e35c0001 cmp r12, #1 ; 0x1 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1304 118c: 1a00000d bne 0x11c8 ; return 0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1305 1190: e3a0c018 mov r12, #24 ; 0x18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1306 1194: e28cc403 add r12, r12, #50331648 ; 0x3000000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1307 1198: e59cc000 ldr r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1308 119c: e20c04ff and r0, r12, #-16777216 ; 0xff000000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1309 11a0: e3700416 cmn r0, #369098752 ; 0x16000000 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1310 11a4: 1a000007 bne 0x11c8 ; return 0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1311 11a8: e3a00018 mov r0, #24 ; 0x18 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1312 11ac: e2800403 add r0, r0, #50331648 ; 0x3000000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1313 11b0: e28cc002 add r12, r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1314 11b4: e1a0c10c mov r12, r12, lsl #2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1315 11b8: e3ccc4ff bic r12, r12, #-16777216 ; 0xff000000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1316 11bc: e790c00c ldr r12, [r0, r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1317 11c0: e37c0001 cmn r12, #1 ; 0x1 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1318 11c4: 1a000001 bne 0x11d0 ; return 1 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1319 11c8: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1320 11cc: e1a0f00e mov pc, lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1321 11d0: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1322 11d4: e1a0f00e mov pc, lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1323 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1324 ; main() entry point |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1325 11d8: e92d4070 stmdb sp!, {r4, r5, r6, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1326 11dc: e24dd008 sub sp, sp, #8 ; 0x8 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1327 ; 0xe2c basic memmap/clock init routine called with the following |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1328 ; values: WS=4 for nCS0, WS=0 for nCS6 and nCS7, FF22 into FFFF:F900 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1329 11e0: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1330 11e4: e5cdc000 strb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1331 11e8: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1332 11ec: e3a01000 mov r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1333 11f0: e3a02000 mov r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1334 11f4: e3a03002 mov r3, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1335 11f8: ebffff0b bl 0xe2c |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1336 11fc: eb00004f bl 0x1340 ; init UARTs |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1337 ; write 0x1D4C0 into 800104 - even though it was already done by the |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1338 ; bulk RAM init routine at 0x1500 |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1339 1200: e59f00f4 ldr r0, =0x800104 ; via 0x12fc |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1340 1204: e3a0c802 mov r12, #131072 ; 0x20000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1341 1208: e24ccdad sub r12, r12, #11072 ; 0x2b40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1342 120c: e580c000 str r12, [r0] |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1343 ; set bit 6 in FFFF:FD02 (set VCLKOUT-FR to /2) |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1344 1210: e59f60d8 ldr r6, =0xFFFFFD02 ; via 0x12f0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1345 1214: e1d6c0b0 ldrh r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1346 1218: e38cc040 orr r12, r12, #64 ; 0x40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1347 121c: e1c6c0b0 strh r12, [r6] |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1348 ; Check for a valid image in flash. If there doesn't seem to be one, |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1349 ; call the 0x1090 routine. The latter seems to never return, so it is |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1350 ; probably the endless wait for UART download function. |
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1351 1220: ebffffd4 bl 0x1178 ; check for valid img in flash |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1352 1224: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1353 1228: 1a000001 bne 0x1234 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1354 122c: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1355 1230: ebffff96 bl 0x1090 |
5
9db4dcf94128
boot ROM re: making inroads into the flash image validity criteria
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
4
diff
changeset
|
1356 ; A valid image is present. |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1357 ; set bit 6 in FFFF:FD02 again |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1358 1234: e1d6c0b0 ldrh r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1359 1238: e38cc040 orr r12, r12, #64 ; 0x40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1360 123c: e1c6c0b0 strh r12, [r6] |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1361 1240: e59f10b0 ldr r1, =0x800524 ; via 0x12f8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1362 1244: e2415004 sub r5, r1, #4 ; 0x4 |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1363 1248: e59f40b0 ldr r4, =0x373C ; via 0x1300 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1364 ; the retry count loaded into R4 is 14140 in decimal |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1365 124c: e1a00005 mov r0, r5 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1366 ; call made with R0=0x800520, R1=0x800524 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1367 1250: ebffff57 bl 0xfb4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1368 1254: e3500000 cmp r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1369 1258: 1a000001 bne 0x1264 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1370 125c: e2544001 subs r4, r4, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1371 1260: 1afffff9 bne 0x124c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1372 1264: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1373 1268: 0a00000c beq 0x12a0 |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1374 ; clear bit 6 in FFFF:FD02 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1375 126c: e1d6c0b0 ldrh r12, [r6] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1376 1270: e20c00bf and r0, r12, #191 ; 0xbf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1377 1274: e20cccff and r12, r12, #65280 ; 0xff00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1378 1278: e180c00c orr r12, r0, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1379 127c: e1c6c0b0 strh r12, [r6] |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1380 ; transfer control to the flash image? |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1381 1280: e3a0ca02 mov r12, #8192 ; 0x2000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1382 1284: e59c0000 ldr r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1383 1288: e1b010a0 movs r1, r0, lsr #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1384 128c: 1a000002 bne 0x129c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1385 1290: e59c1004 ldr r1, [r12, #4] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1386 1294: eb0000bc bl 0x158c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1387 1298: eafffffe b 0x1298 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1388 129c: eafffffe b 0x129c |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1389 ; interactive mode entry? |
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1390 12a0: e59fc050 ldr r12, =0x800524 ; via 0x12f8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1391 12a4: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1392 12a8: e3a01001 mov r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1393 12ac: e3a02002 mov r2, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1394 12b0: ebffff0f bl 0xef4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1395 12b4: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1396 12b8: ebffff74 bl 0x1090 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1397 12bc: e28dd008 add sp, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1398 12c0: e8bd8070 ldmia sp!, {r4, r5, r6, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1399 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1400 ; literal pool |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1401 12c4: fffffa08 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1402 12c8: 0000ffff |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1403 12cc: fffffa0a |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1404 12d0: fffff804 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1405 12d4: fffffb10 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1406 12d8: fffffd00 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1407 12dc: ffff9800 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1408 12e0: 00002002 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1409 12e4: fffff900 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1410 12e8: ffff5000 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1411 12ec: 00800534 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1412 12f0: fffffd02 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1413 12f4: 00800518 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1414 12f8: 00800524 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1415 12fc: 00800104 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1416 1300: 0000373c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1417 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1418 ; Routine 0x1304: emit a character string through a UART |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1419 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1420 ; Arguments: |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1421 : R0: pointer to the string |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1422 ; R1: number of characters (bytes) to transmit |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1423 ; R2: UART ID (0=MODEM, 1=IrDA) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1424 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1425 1304: e3510000 cmp r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1426 1308: 012fff1e bxeq lr |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1427 130c: e59fc178 ldr r12, =0x1FCC ; via 0x148c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1428 1310: e79cc102 ldr r12, [r12, r2, lsl #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1429 1314: e28c3005 add r3, r12, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1430 1318: e5d32000 ldrb r2, [r3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1431 131c: e3120020 tst r2, #32 ; 0x20 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1432 1320: 0afffffc beq 0x1318 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1433 1324: e4d02001 ldrb r2, [r0], #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1434 1328: e5cc2000 strb r2, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1435 132c: e2411001 sub r1, r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1436 1330: e1a01801 mov r1, r1, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1437 1334: e1b01821 movs r1, r1, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1438 1338: 1afffff6 bne 0x1318 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1439 133c: e12fff1e bx lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1440 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1441 ; The following routine initializes both UARTs with a fixed set of |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1442 ; parameters (the same for both UARTs). |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1443 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1444 1340: e92d4ff0 stmdb sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr} |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1445 ; UIR fiddling: connect the MODEM UART to the MCU |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1446 ; and restore normal operation (interrupts NOT masked at UIR level) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1447 1344: e59fc144 ldr r12, =0xFFFF6000 ; via 0x1490 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1448 1348: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1449 134c: e3800002 orr r0, r0, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1450 1350: e5cc0000 strb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1451 1354: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1452 1358: e20000fe and r0, r0, #254 ; 0xfe |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1453 135c: e5cc0000 strb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1454 1360: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1455 1364: e20000fd and r0, r0, #253 ; 0xfd |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1456 1368: e5cc0000 strb r0, [r12] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1457 ; actual UART register diddling: prepare the values for both UARTs |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1458 136c: e3a0b003 mov r11, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1459 1370: e3a05000 mov r5, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1460 1374: e3a0a02a mov r10, #42 ; 0x2a |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1461 1378: e3a09080 mov r9, #128 ; 0x80 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1462 137c: e3a070bf mov r7, #191 ; 0xbf |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1463 1380: e3a04007 mov r4, #7 ; 0x7 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1464 1384: e3a02002 mov r2, #2 ; 0x2 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1465 ; loop over the 2 UART base addresses |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1466 1388: e59f60fc ldr r6, =0x1FCC ; via 0x148c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1467 138c: e496c004 ldr r12, [r6], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1468 1390: e28c3008 add r3, r12, #8 ; 0x8 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1469 ; R3 points to register 8 (MDR1) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1470 ; write 07 into it: reset mode |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1471 1394: e5c34000 strb r4, [r3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1472 1398: e28c0003 add r0, r12, #3 ; 0x3 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1473 ; R0 points to register 3 (LCR) |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1474 ; write BF into it: map in the extended registers |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1475 139c: e5c07000 strb r7, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1476 13a0: e28c1002 add r1, r12, #2 ; 0x2 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1477 ; R1 points to register 2: EFR under current mapping |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1478 ; set bit 4: enable enhanced functions |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1479 13a4: e5d18000 ldrb r8, [r1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1480 13a8: e3888010 orr r8, r8, #16 ; 0x10 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1481 13ac: e5c18000 strb r8, [r1] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1482 ; write 80 into LCR: map in the baud rate divisor registers |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1483 13b0: e5c09000 strb r9, [r0] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1484 ; reg 2 (pointed to by R1) is now IIR/FCR |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1485 ; write 07 into FCR: FIFOs enabled and cleared, no DMA |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1486 13b4: e5c14000 strb r4, [r1] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1487 ; write BF into LCR again |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1488 13b8: e5c07000 strb r7, [r0] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1489 ; load baud rate divisor /42 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1490 13bc: e5cca000 strb r10, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1491 13c0: e5cc5001 strb r5, [r12, #1] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1492 ; write 03 into LCR: restore normal registers, 8N1 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1493 13c4: e5c0b000 strb r11, [r0] |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1494 ; write 00 into MDR1: plain UART mode |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1495 13c8: e5c35000 strb r5, [r3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1496 13cc: e2522001 subs r2, r2, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1497 13d0: 1affffed bne 0x138c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1498 13d4: e8bd8ff0 ldmia sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1499 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1500 ; The following routine switches a UART to a different baud rate. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1501 ; Arguments: |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1502 ; R0: baud rate index from the table at 0x1FD4 |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1503 ; R1: UART ID (0=MODEM, 1=IrDA) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1504 |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1505 13d8: e59fc0ac ldr r12, =0x1FCC ; via 0x148c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1506 13dc: e79c2101 ldr r2, [r12, r1, lsl #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1507 13e0: e282c005 add r12, r2, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1508 13e4: e5dc1000 ldrb r1, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1509 13e8: e3110040 tst r1, #64 ; 0x40 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1510 13ec: 0afffffc beq 0x13e4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1511 13f0: e282c003 add r12, r2, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1512 13f4: e5dc1000 ldrb r1, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1513 13f8: e3811080 orr r1, r1, #128 ; 0x80 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1514 13fc: e5cc1000 strb r1, [r12] |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1515 1400: e59f108c ldr r1, =0x1FD4 ; via 0x1494 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1516 1404: e7d13080 ldrb r3, [r1, r0, lsl #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1517 1408: e5c23001 strb r3, [r2, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1518 140c: e0810080 add r0, r1, r0, lsl #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1519 1410: e5d00001 ldrb r0, [r0, #1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1520 1414: e5c20000 strb r0, [r2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1521 1418: e5dc0000 ldrb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1522 141c: e200007f and r0, r0, #127 ; 0x7f |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1523 1420: e5cc0000 strb r0, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1524 1424: e12fff1e bx lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1525 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1526 ; 0x1428 - UART read Rx character routine |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1527 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1528 ; Arguments: |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1529 ; R0: UART ID (0=MODEM, 1=IrDA) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1530 ; R1: poll repeat count, 0 means wait forever |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1531 ; R2: pointer to buffer where the received booty is stored |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1532 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1533 ; Return value: 1 if a character was received, 0 otherwise |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1534 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1535 1428: e3510000 cmp r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1536 142c: 1a000006 bne 0x144c |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1537 1430: e59fc054 ldr r12, =0x1FCC ; via 0x148c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1538 1434: e79cc100 ldr r12, [r12, r0, lsl #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1539 1438: e28c1005 add r1, r12, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1540 143c: e5d10000 ldrb r0, [r1] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1541 1440: e1b00f80 movs r0, r0, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1542 1444: 0afffffc beq 0x143c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1543 1448: ea000009 b 0x1474 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1544 144c: e59fc038 ldr r12, =0x1FCC ; via 0x148c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1545 1450: e79cc100 ldr r12, [r12, r0, lsl #2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1546 1454: e28c3005 add r3, r12, #5 ; 0x5 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1547 1458: e5d30000 ldrb r0, [r3] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1548 145c: e1b00f80 movs r0, r0, lsl #31 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1549 1460: 1a000001 bne 0x146c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1550 1464: e2511001 subs r1, r1, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1551 1468: 1afffffa bne 0x1458 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1552 146c: e3510000 cmp r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1553 1470: 0a000003 beq 0x1484 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1554 1474: e5dcc000 ldrb r12, [r12] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1555 1478: e5c2c000 strb r12, [r2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1556 147c: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1557 1480: e12fff1e bx lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1558 1484: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1559 1488: e12fff1e bx lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1560 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1561 ; literal pool |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1562 148c: 00001fcc |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1563 1490: ffff6000 |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
|
1564 1494: 00001fd4 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1565 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1566 ; The RESET entry point branches here |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1567 ; |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1568 ; First order of business: copy the 7 vector instructions from |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1569 ; 0x1FE0 to 0x80001C. |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1570 1498: e59f003c ldr r0, =0x1FE0 ; via 0x14dc |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1571 149c: e59f103c ldr r1, =0x80001C ; via 0x14e0 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1572 14a0: e3a02000 mov r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1573 14a4: e7903002 ldr r3, [r0, r2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1574 14a8: e7813002 str r3, [r1, r2] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1575 14ac: e2822004 add r2, r2, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1576 14b0: e352001c cmp r2, #28 ; 0x1c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1577 14b4: 1afffffa bne 0x14a4 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1578 ; done with that; now set up the stack |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1579 14b8: e59f0014 ldr r0, =0x8005C0 ; via 0x14d4 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1580 14bc: e59f1014 ldr r1, =0x190 ; via 0x14d8 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1581 14c0: e2411004 sub r1, r1, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1582 14c4: e0802001 add r2, r0, r1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1583 14c8: e3c22003 bic r2, r2, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1584 14cc: e1a0d002 mov sp, r2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1585 14d0: ea000003 b 0x14e4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1586 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1587 ; literals for the above code |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1588 14d4: 008005c0 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1589 14d8: 00000190 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1590 14dc: 00001fe0 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1591 14e0: 0080001c |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1592 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1593 ; continuation of the RESET entry code |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1594 14e4: e59f0078 ldr r0, =0x1694 ; via 0x1564 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1595 14e8: e3700001 cmn r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1596 14ec: 1b000003 blne 0x1500 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1597 14f0: ebffff38 bl 0x11d8 ; main() |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1598 ; only tight-loop halts from here on |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1599 14f4: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1600 14f8: eb000022 bl 0x1588 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1601 14fc: eafffffe b 0x14fc |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1602 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1603 ; 0x1500: Subroutine entry |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1604 ; |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1605 ; This routine initializes multiple RAM areas from a single ROM init data |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1606 ; table. Takes one argument in R0, which points to the ROM table. |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1607 ; The ROM table consists of one or more abutted variable-length records, |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1608 ; each of the following format: |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1609 ; |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1610 ; 1 word: number of bytes to copy (may or may not be word-aligned) |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1611 ; 1 word: copy destination address (ditto) |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1612 ; variable length: data to be copied |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1613 ; 0 to 3 bytes of padding to put the next record on a word boundary |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1614 ; |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1615 ; The list is terminated by a zero word. |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1616 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1617 1500: ea000011 b 0x154c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1618 1504: e4901004 ldr r1, [r0], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1619 1508: e3110003 tst r1, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1620 150c: 1a000007 bne 0x1530 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1621 1510: e2522004 subs r2, r2, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1622 1514: 4a000003 bmi 0x1528 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1623 1518: e4903004 ldr r3, [r0], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1624 151c: e4813004 str r3, [r1], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1625 1520: e2522004 subs r2, r2, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1626 1524: 5afffffb bpl 0x1518 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1627 1528: e2922004 adds r2, r2, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1628 152c: 0a000003 beq 0x1540 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1629 1530: e4d03001 ldrb r3, [r0], #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1630 1534: e4c13001 strb r3, [r1], #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1631 1538: e2522001 subs r2, r2, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1632 153c: 1afffffb bne 0x1530 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1633 1540: e3100003 tst r0, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1634 1544: 13c00003 bicne r0, r0, #3 ; 0x3 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1635 1548: 12800004 addne r0, r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1636 154c: e4902004 ldr r2, [r0], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1637 1550: e3520000 cmp r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1638 1554: 1affffea bne 0x1504 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1639 1558: e1a0f00e mov pc, lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1640 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1641 ; literal pool |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1642 155c: 008005c0 ; low address of the stack - unused duplicate? |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1643 1560: 00000190 ; size of the stack - ditto |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1644 1564: 00001694 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1645 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1646 ; The following looks like the TI compiler's IND_CALL library helper |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1647 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1648 1568: e3140001 tst r4, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1649 156c: 1a000000 bne 0x1574 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1650 1570: e12fff14 bx r4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1651 1574: e1a0c004 mov r12, r4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1652 1578: e1a0400e mov r4, lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1653 157c: e28fe001 add lr, pc, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1654 1580: e12fff1c bx r12 |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1655 1584: 4720 bx r4 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1656 1586: 46c0 nop (mov r8, r8) |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1657 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1658 1588: eafffffe b 0x1588 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1659 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1660 ; This routine effects the transfer of control to the flash (nCS0) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1661 ; application image of the type indicated by the argument in R0. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1662 ; The latter argument is the word read from 0x2000. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1663 ; R1 contains the word read from 0x2004. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1664 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1665 158c: e92d4010 stmdb sp!, {r4, lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1666 1590: e1a04000 mov r4, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1667 1594: e1b0c0a4 movs r12, r4, lsr #1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1668 1598: 0a000001 beq 0x15a4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1669 159c: e3a00001 mov r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1670 15a0: e8bd8010 ldmia sp!, {r4, pc} |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1671 15a4: e59f0054 ldr r0, =0xFFFFFB10 ; via 0x1600 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1672 15a8: e1d0c0b0 ldrh r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1673 15ac: e20c20ff and r2, r12, #255 ; 0xff |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1674 15b0: e20ccb3f and r12, r12, #64512 ; 0xfc00 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1675 15b4: e182c00c orr r12, r2, r12 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1676 15b8: e1a0c80c mov r12, r12, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1677 15bc: e1a0c82c mov r12, r12, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1678 15c0: e3540000 cmp r4, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1679 15c4: 1a000004 bne 0x15dc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1680 15c8: e38ccc01 orr r12, r12, #256 ; 0x100 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1681 15cc: e1c0c0b0 strh r12, [r0] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1682 15d0: e1a04001 mov r4, r1 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1683 15d4: ebffffe3 bl 0x1568 ; IND_CALL |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1684 15d8: e8bd8010 ldmia sp!, {r4, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1685 15dc: e3540001 cmp r4, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1686 15e0: 18bd8010 ldmneia sp!, {r4, pc} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1687 15e4: e3a00020 mov r0, #32 ; 0x20 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1688 15e8: e3a010cc mov r1, #204 ; 0xcc |
6
8c2621b2ed37
boot ROM re: further understanding of the external flash image booting
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
5
diff
changeset
|
1689 15ec: e59f2010 ldr r2, =0x800038 ; via 0x1604 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1690 15f0: eb000019 bl 0x165c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1691 15f4: e1a00004 mov r0, r4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1692 15f8: eb1ffa8e bl 0x800038 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1693 15fc: e8bd8010 ldmia sp!, {r4, pc} |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1694 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1695 ; literal pool |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1696 1600: fffffb10 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1697 1604: 00800038 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1698 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1699 ; This routine computes a simple word-wise (16 bits at a time) sum of |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1700 ; the present internal boot ROM code (ignoring carry-outs), and returns |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1701 ; it in R0. The upper 16 bits of the R0 return value will always be 0. |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1702 ; |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1703 ; If the argument in R0 equals 1, a call to the 0xe2c memmap/clock init |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1704 ; function is made first, with the same arguments as at the beginning |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1705 ; of main(). |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1706 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1707 1608: e92d4000 stmdb sp!, {lr} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1708 160c: e24dd008 sub sp, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1709 1610: e3500001 cmp r0, #1 ; 0x1 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1710 1614: 1a000006 bne 0x1634 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1711 ; 0xe2c routine is called with the same arguments as at the beginning |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1712 ; of main() |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1713 1618: e3a0c002 mov r12, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1714 161c: e5cdc000 strb r12, [sp] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1715 1620: e3a00004 mov r0, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1716 1624: e3a01000 mov r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1717 1628: e3a02000 mov r2, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1718 162c: e3a03002 mov r3, #2 ; 0x2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1719 1630: ebfffdfd bl 0xe2c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1720 1634: e3a00000 mov r0, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1721 1638: e3a0c000 mov r12, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1722 163c: e0dc10b2 ldrh r1, [r12], #2 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1723 1640: e0810000 add r0, r1, r0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1724 1644: e1a00800 mov r0, r0, lsl #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1725 1648: e1a00820 mov r0, r0, lsr #16 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1726 164c: e35c0a02 cmp r12, #8192 ; 0x2000 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1727 1650: 3afffff9 bcc 0x163c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1728 1654: e28dd008 add sp, sp, #8 ; 0x8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1729 1658: e8bd8000 ldmia sp!, {pc} |
3
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1730 |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1731 ; The following is a bcopy/memcpy-like routine, but with arguments |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1732 ; in the wrong order (matching neither bcopy nor memcpy): |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1733 ; |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1734 ; R0: source address |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1735 ; R1: # of bytes to copy |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1736 ; R2: dest address |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1737 ; |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1738 ; The addresses must be word-aligned, the length must be a multiple of 4. |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1739 ; Zero length is OK (no-op). |
e3f8fe6a848e
boot ROM re: started on main() and the 0xe2c routine
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
2
diff
changeset
|
1740 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1741 165c: e3510000 cmp r1, #0 ; 0x0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1742 1660: 012fff1e bxeq lr |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1743 1664: e490c004 ldr r12, [r0], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1744 1668: e482c004 str r12, [r2], #4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1745 166c: e2511004 subs r1, r1, #4 ; 0x4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1746 1670: 1afffffb bne 0x1664 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1747 1674: e12fff1e bx lr |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1748 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1749 ; The soft-vector pointers at 0x800000 are initially set to point |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1750 ; to the ROM addresses of the following 7 tight-loop branch instructions: |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1751 1678: eafffffe b 0x1678 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1752 167c: eafffffe b 0x167c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1753 1680: eafffffe b 0x1680 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1754 1684: eafffffe b 0x1684 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1755 1688: eafffffe b 0x1688 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1756 168c: eafffffe b 0x168c |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1757 1690: eafffffe b 0x1690 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1758 |
2
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1759 ; RAM init table for the 0x1500 subroutine |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1760 ; vector init |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1761 1694: 0000001c |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1762 1698: 00800000 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1763 169c: 00001678 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1764 16a0: 0000167c |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1765 16a4: 00001680 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1766 16a8: 00001684 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1767 16ac: 00001688 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1768 16b0: 0000168c |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1769 16b4: 00001690 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1770 ; another record |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1771 16b8: 00000004 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1772 16bc: 00800104 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1773 16c0: 0001d4c0 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1774 ; another record |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1775 16c4: 00000001 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1776 16c8: 00800108 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1777 16cc: 00000001 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1778 ; another record |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1779 16d0: 00000001 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1780 16d4: 00800534 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1781 16d8: 00000000 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1782 ; end marker |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1783 16dc: 00000000 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1784 |
979d97fe75eb
boot ROM rev eng: progressing on the RESET code
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
1
diff
changeset
|
1785 ; The word at 0x16DC appears to be the last word of the actual boot |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1786 ; code + data. Between here and 0x1FCC we've got what looks like |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1787 ; filler: |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1788 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1789 000016C0: C0 D4 01 00 01 00 00 00 08 01 80 00 01 00 00 00 ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1790 000016D0: 01 00 00 00 34 05 80 00 00 00 00 00 00 00 00 00 ....4........... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1791 000016E0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1792 000016F0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1793 00001700: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1794 00001710: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1795 00001720: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1796 00001730: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1797 00001740: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1798 00001750: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1799 00001760: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1800 00001770: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1801 00001780: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1802 00001790: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1803 000017A0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1804 000017B0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1805 000017C0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1806 000017D0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1807 000017E0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1808 000017F0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1809 00001800: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1810 00001810: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1811 00001820: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1812 00001830: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1813 00001840: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1814 00001850: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1815 00001860: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1816 00001870: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1817 00001880: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1818 00001890: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1819 000018A0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1820 000018B0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1821 000018C0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1822 000018D0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1823 000018E0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1824 000018F0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1825 00001900: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1826 00001910: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1827 00001920: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1828 00001930: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1829 00001940: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1830 00001950: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1831 00001960: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1832 00001970: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1833 00001980: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1834 00001990: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1835 000019A0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1836 000019B0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1837 000019C0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1838 000019D0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1839 000019E0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1840 000019F0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1841 00001A00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1842 00001A10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1843 00001A20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1844 00001A30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1845 00001A40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1846 00001A50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1847 00001A60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1848 00001A70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1849 00001A80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1850 00001A90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1851 00001AA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1852 00001AB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1853 00001AC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1854 00001AD0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1855 00001AE0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1856 00001AF0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1857 00001B00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1858 00001B10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1859 00001B20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1860 00001B30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1861 00001B40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1862 00001B50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1863 00001B60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1864 00001B70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1865 00001B80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1866 00001B90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1867 00001BA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1868 00001BB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1869 00001BC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1870 00001BD0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1871 00001BE0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1872 00001BF0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1873 00001C00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1874 00001C10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1875 00001C20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1876 00001C30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1877 00001C40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1878 00001C50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1879 00001C60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1880 00001C70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1881 00001C80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1882 00001C90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1883 00001CA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1884 00001CB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1885 00001CC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1886 00001CD0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1887 00001CE0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1888 00001CF0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1889 00001D00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1890 00001D10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1891 00001D20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1892 00001D30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1893 00001D40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1894 00001D50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1895 00001D60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1896 00001D70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1897 00001D80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1898 00001D90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1899 00001DA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1900 00001DB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1901 00001DC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1902 00001DD0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1903 00001DE0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1904 00001DF0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1905 00001E00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1906 00001E10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1907 00001E20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1908 00001E30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1909 00001E40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1910 00001E50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1911 00001E60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1912 00001E70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1913 00001E80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1914 00001E90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1915 00001EA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1916 00001EB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1917 00001EC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 FF FE FD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1918 00001ED0: FC FB FA F9 F8 F7 F6 F5 F4 F3 F2 F1 F0 EF EE ED ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1919 00001EE0: EC EB EA E9 E8 E7 E6 E5 E4 E3 E2 E1 E0 DF DE DD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1920 00001EF0: DC DB DA D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 CF CE CD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1921 00001F00: CC CB CA C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 BF BE BD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1922 00001F10: BC BB BA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 AF AE AD ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1923 00001F20: AC AB AA A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 9F 9E 9D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1924 00001F30: 9C 9B 9A 99 98 97 96 95 94 93 92 91 90 8F 8E 8D ................ |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1925 00001F40: 8C 8B 8A 89 88 87 86 85 84 83 82 81 80 7F 7E 7D ..............~} |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1926 00001F50: 7C 7B 7A 79 78 77 76 75 74 73 72 71 70 6F 6E 6D |{zyxwvutsrqponm |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1927 00001F60: 6C 6B 6A 69 68 67 66 65 64 63 62 61 60 5F 5E 5D lkjihgfedcba`_^] |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1928 00001F70: 5C 5B 5A 59 58 57 56 55 54 53 52 51 50 4F 4E 4D \[ZYXWVUTSRQPONM |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1929 00001F80: 4C 4B 4A 49 48 47 46 45 44 43 42 41 40 3F 3E 3D LKJIHGFEDCBA@?>= |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1930 00001F90: 3C 3B 3A 39 38 37 36 35 34 33 32 31 30 2F 2E 2D <;:9876543210/.- |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1931 00001FA0: 2C 2B 2A 29 28 27 26 25 24 23 22 21 20 1F 1E 1D ,+*)('&%$#"! ... |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1932 00001FB0: 1C 1B 1A 19 18 17 16 15 14 13 12 11 10 0F 0E 0D ................ |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1933 00001FC0: 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 58 FF FF .............X.. |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1934 00001FD0: 00 50 FF FF 00 07 00 0E 00 15 00 1C 00 2A 00 00 .P...........*.. |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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1935 00001FE0: 24 F0 1F E5 24 F0 1F E5 24 F0 1F E5 24 F0 1F E5 $...$...$...$... |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1936 00001FF0: 24 F0 1F E5 24 F0 1F E5 24 F0 1F E5 00 00 00 03 $...$...$....... |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1937 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
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1938 ; The filler ends at 0x1FCC. Then we've got some data words: |
1
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1939 |
4
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
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|
1940 ; base addresses of the two UARTs |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
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1941 1fcc: ffff5800 |
a821df9c4457
boot ROM re: got as far as UART init
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
3
diff
changeset
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1942 1fd0: ffff5000 |
8
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
|
1943 ; UART baud rates |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
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1944 1fd4: 0700 ; /7 (115200?) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
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1945 1fd6: 0e00 ; /14 (57600?) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
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1946 1fd8: 1500 ; /21 (38400?) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
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1947 1fda: 1c00 ; /28 (28800?) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
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1948 1fdc: 2a00 ; /42 (19200?) |
a06573cacb6e
boot ROM re: trying to understand the code that runs after '<' received
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
6
diff
changeset
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1949 1fde: 0000 |
1
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1950 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1951 ; These ldr-jump instructions get copied to the 7 internal RAM words |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1952 ; starting at 0x80001C. They have the effect of defining the preceding |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1953 ; 7 words (0x800000-0x800018 inclusive) as address-type vectors for the |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1954 ; exceptions, such that one can hook an exception either by replacing |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1955 ; the ldr-jump instruction in the 0x80001C-0x800034 window with a branch |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1956 ; to the desired handler, or by sticking the absolute address of that |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1957 ; desired handler into the 0x800000-0x800018 window. |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1958 |
4b5e22875181
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1959 1fe0: e51ff024 ldr pc, [pc, #-36] ; 0x1fc4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1960 1fe4: e51ff024 ldr pc, [pc, #-36] ; 0x1fc8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1961 1fe8: e51ff024 ldr pc, [pc, #-36] ; 0x1fcc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1962 1fec: e51ff024 ldr pc, [pc, #-36] ; 0x1fd0 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1963 1ff0: e51ff024 ldr pc, [pc, #-36] ; 0x1fd4 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1964 1ff4: e51ff024 ldr pc, [pc, #-36] ; 0x1fd8 |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1965 1ff8: e51ff024 ldr pc, [pc, #-36] ; 0x1fdc |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1966 ; ??? |
4b5e22875181
beginning of boot ROM reverse eng
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1967 1ffc: 03000000 tsteq r0, #0 ; 0x0 |