FreeCalypso > hg > freecalypso-reveng

annotate compal/c139-boot.disasm @ 102:44db5922ab8f

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c139 boot re: entry code analyzed
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 31 Mar 2014 01:52:56 +0000
parents ec90136f07a6
children 52cec4b71cfe
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 RESET entry and exception vectors:
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 0: ea000225 b 0x89c
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 4: ea000825 b 0x20a0
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 8: ea000825 b 0x20a4
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5 c: ea000825 b 0x20a8
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 10: ea000825 b 0x20ac
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 14: ea000825 b 0x20b0
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8 18: ea000825 b 0x20b4
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9 1c: ea000825 b 0x20b8
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 ; some magic words?
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12 20: 444efc57
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 24: 444efc58
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14 28: 444efc86
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 2c: 444efc87
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
16 ; different in the C140 specimen:
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
17 20: 44b1b707
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
18 24: 44b1b708
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
19 28: 44b1b735
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
20 2c: 44b1b736
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22 <30-7FF: all FFs>
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
23
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
24 00000800: 42 4F 4F 54 2E 39 30 2E 30 34 00 00 00 00 00 00 BOOT.90.04......
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25 00000810: 31 30 30 33 01 01 00 00 FF FF FF FF FF FF FF FF 1003............
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 00000820: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
28 830: 00000006
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
29 ...
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
30 83c: 00000048
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
31 840: 00000044
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
32 844: 00000052
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
33 848: 0000001b
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
34 84c: 00000005
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
35 ...
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
36 860: 000000fa
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 864: ffff5800
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 868: ffff5000
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
39 86c: fffffb00
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
40 870: 02a1
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
41 872: 02a1
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
42 874: 02a1
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
43 876: 0283
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
44 878: 0281
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
45 87a: 00c0
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
46 87c: 0040
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
47 87e: 002a
85
3c420895f68f compal boot ROM re: minor progress
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 84
diff changeset
48 880: 00000040
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
49 884: fffffd00
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
50 888: ffff9800
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
51 88c: fffffb10
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
52 890: ffffff08
85
3c420895f68f compal boot ROM re: minor progress
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 84
diff changeset
53 894: 1081
3c420895f68f compal boot ROM re: minor progress
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 84
diff changeset
54 896: 2006
3c420895f68f compal boot ROM re: minor progress
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 84
diff changeset
55 898: 0800
3c420895f68f compal boot ROM re: minor progress
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 84
diff changeset
56 89a: 0000
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
57
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
58 ; RESET entry point
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
59 ; set VCLKOUT_DIV2 in FFFF:FD02 register
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
60 89c: e51f1020 ldr r1, =0xfffffd00 ; via 0x884
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
61 8a0: e1d120b2 ldrh r2, [r1, #2]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
62 8a4: e51f002c ldr r0, =0x40 ; via 0x880
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
63 8a8: e1800002 orr r0, r0, r2
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
64 8ac: e1c100b2 strh r0, [r1, #2]
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
65 ; PLL disable (power-up state)
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
66 8b0: e51f1030 ldr r1, =0xffff9800 ; via 0x888
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
67 8b4: e15f22b6 ldrh r2, =0x2006 ; via 0x896
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
68 8b8: e1c120b0 strh r2, [r1]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
69 8bc: e5912000 ldr r2, [r1]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
70 8c0: e2022001 and r2, r2, #1
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
71 8c4: e3520001 cmp r2, #1
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
72 8c8: 0afffffb beq 0x8bc
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
73 ; Write power-up default value into FFFF:FD00
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
74 8cc: e51f1050 ldr r1, =0xfffffd00 ; via 0x884
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
75 8d0: e15f24b4 ldrh r2, =0x1081 ; via 0x894
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
76 8d4: e1c120b0 strh r2, [r1]
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
77 ; Disable DU
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
78 8d8: e51f1054 ldr r1, =0xfffffb10 ; via 0x88c
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
79 8dc: e15f24bc ldrh r2, =0x800 ; via 0x898
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
80 8e0: e1d100b0 ldrh r0, [r1]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
81 8e4: e1800002 orr r0, r0, r2
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
82 8e8: e1c100b0 strh r0, [r1]
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
83 ; Disable all MPU regions
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
84 8ec: e51f1064 ldr r1, =0xffffff08 ; via 0x890
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
85 8f0: e15f25be ldrh r2, =0x0 ; via 0x89a
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
86 8f4: e1c120b0 strh r2, [r1]
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
87 ; Memory timings
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
88 8f8: e51f1094 ldr r1, =0xfffffb00 ; via 0x86c
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
89 8fc: e15f29b4 ldrh r2, =0x2a1 ; via 0x870
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
90 900: e1c120b0 strh r2, [r1]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
91 904: e15f29ba ldrh r2, =0x2a1 ; via 0x872
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
92 908: e1c120b2 strh r2, [r1, #2]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
93 90c: e15f2ab0 ldrh r2, =0x2a1 ; via 0x874
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
94 910: e1c120b4 strh r2, [r1, #4]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
95 914: e15f2ab6 ldrh r2, =0x283 ; via 0x876
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
96 918: e1c120b6 strh r2, [r1, #6]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
97 91c: e15f2abc ldrh r2, =0x281 ; via 0x878
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
98 920: e1c120ba strh r2, [r1, #10] ; 0xa
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
99 924: e15f2bb2 ldrh r2, =0xc0 ; via 0x87a
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
100 928: e1c120bc strh r2, [r1, #12] ; 0xc
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
101 92c: e15f2bb8 ldrh r2, =0x40 ; via 0x87c
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
102 930: e1c120b8 strh r2, [r1, #8]
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
103 934: e15f2bbe ldrh r2, =0x2a ; via 0x87e
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
104 938: e1c120be strh r2, [r1, #14] ; 0xe
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
105 ; set up stack
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
106 93c: e59f0020 ldr r0, =0x83e574 ; via 0x964
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
107 940: e3a01b01 mov r1, #1024 ; 0x400
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
108 944: e2411004 sub r1, r1, #4
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
109 948: e0802001 add r2, r0, r1
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
110 94c: e3c22003 bic r2, r2, #3
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
111 950: e1a0d002 mov sp, r2
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
112 ; business logic
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
113 954: e92d100f stmdb sp!, {r0, r1, r2, r3, r12}
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
114 958: eb000534 bl 0x1e30
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
115 95c: e8bd100f ldmia sp!, {r0, r1, r2, r3, r12}
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
116 960: ea0005e4 b 0x20f8
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
117
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
118 ; C139 specimen:
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
119 964: 0083e574
99
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
120 ; different in the C140 specimen:
3bd695d9b2b4 C139 boot re: C140 differences noted
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 85
diff changeset
121 964: 0083e55c
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
122
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
123 <968-1E2F: not yet analyzed>
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
124
102
44db5922ab8f c139 boot re: entry code analyzed
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 100
diff changeset
125 ; ARM->Thumb call veneer around 0xad2 routine
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
126 1e30: e92d4000 stmdb sp!, {lr}
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
127 1e34: e28fe001 add lr, pc, #1 ; 0x1
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
128 1e38: e12fff1e bx lr
100
ec90136f07a6 C139 boot re: use thumbdis
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 99
diff changeset
129 1e3c: f7fe fe49 bl 0xad2
84
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
130 1e40: 4778 bx pc
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
131 1e42: 46c0 nop (mov r8, r8)
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
132 1e44: e8bd8000 ldmia sp!, {pc}
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
133
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
134 <1E48-1EFF: all FFs>
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
135
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
136 1f00: 00000001
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
137
8b15a0969c9e beginning of C139 boot ROM re
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
138 <1F04-end: all FFs>