FreeCalypso > hg > freecalypso-reveng

comparison compal/c139-boot.disasm @ 84:8b15a0969c9e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
beginning of C139 boot ROM re
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 27 Mar 2014 07:07:41 +0000
parents
children 3c420895f68f
comparison
equal deleted inserted replaced
83:3dfecd91c5b0 84:8b15a0969c9e
1 RESET entry and exception vectors:
2 0: ea000225 b 0x89c
3 4: ea000825 b 0x20a0
4 8: ea000825 b 0x20a4
5 c: ea000825 b 0x20a8
6 10: ea000825 b 0x20ac
7 14: ea000825 b 0x20b0
8 18: ea000825 b 0x20b4
9 1c: ea000825 b 0x20b8
10
11 ; some magic words?
12 20: 444efc57
13 24: 444efc58
14 28: 444efc86
15 2c: 444efc87
16
17 <30-7FF: all FFs>
18
19 00000800: 42 4F 4F 54 2E 39 30 2E 30 34 00 00 00 00 00 00 BOOT.90.04......
20 00000810: 31 30 30 33 01 01 00 00 FF FF FF FF FF FF FF FF 1003............
21 00000820: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
22
23 830: 00000006
24 ...
25 83c: 00000048
26 840: 00000044
27 844: 00000052
28 848: 0000001b
29 84c: 00000005
30 ...
31 860: 000000fa
32 864: ffff5800
33 868: ffff5000
34 86c: fffffb00
35 870: 02a1
36 872: 02a1
37 874: 02a1
38 876: 0283
39 878: 0281
40 87a: 00c0
41 87c: 0040
42 87e: 002a
43 880: 0040
44 882: 0000
45 884: fffffd00
46 888: ffff9800
47 88c: fffffb10
48 890: ffffff08
49 894: 20061081
50 898: 00000800
51
52 ; RESET entry point
53 89c: e51f1020 ldr r1, [pc, #-32] ; 0x884
54 8a0: e1d120b2 ldrh r2, [r1, #2]
55 8a4: e51f002c ldr r0, [pc, #-44] ; 0x880
56 8a8: e1800002 orr r0, r0, r2
57 8ac: e1c100b2 strh r0, [r1, #2]
58 8b0: e51f1030 ldr r1, [pc, #-48] ; 0x888
59 8b4: e15f22b6 ldrh r2, [pc, #-38] ; 0x896
60 8b8: e1c120b0 strh r2, [r1]
61 8bc: e5912000 ldr r2, [r1]
62 8c0: e2022001 and r2, r2, #1 ; 0x1
63 8c4: e3520001 cmp r2, #1 ; 0x1
64 8c8: 0afffffb beq 0x8bc
65 8cc: e51f1050 ldr r1, [pc, #-80] ; 0x884
66 8d0: e15f24b4 ldrh r2, [pc, #-68] ; 0x894
67 8d4: e1c120b0 strh r2, [r1]
68 8d8: e51f1054 ldr r1, [pc, #-84] ; 0x88c
69 8dc: e15f24bc ldrh r2, [pc, #-76] ; 0x898
70 8e0: e1d100b0 ldrh r0, [r1]
71 8e4: e1800002 orr r0, r0, r2
72 8e8: e1c100b0 strh r0, [r1]
73 8ec: e51f1064 ldr r1, [pc, #-100] ; 0x890
74 8f0: e15f25be ldrh r2, [pc, #-94] ; 0x89a
75 8f4: e1c120b0 strh r2, [r1]
76 8f8: e51f1094 ldr r1, [pc, #-148] ; 0x86c
77 8fc: e15f29b4 ldrh r2, [pc, #-148] ; 0x870
78 900: e1c120b0 strh r2, [r1]
79 904: e15f29ba ldrh r2, [pc, #-154] ; 0x872
80 908: e1c120b2 strh r2, [r1, #2]
81 90c: e15f2ab0 ldrh r2, [pc, #-160] ; 0x874
82 910: e1c120b4 strh r2, [r1, #4]
83 914: e15f2ab6 ldrh r2, [pc, #-166] ; 0x876
84 918: e1c120b6 strh r2, [r1, #6]
85 91c: e15f2abc ldrh r2, [pc, #-172] ; 0x878
86 920: e1c120ba strh r2, [r1, #10]
87 924: e15f2bb2 ldrh r2, [pc, #-178] ; 0x87a
88 928: e1c120bc strh r2, [r1, #12]
89 92c: e15f2bb8 ldrh r2, [pc, #-184] ; 0x87c
90 930: e1c120b8 strh r2, [r1, #8]
91 934: e15f2bbe ldrh r2, [pc, #-190] ; 0x87e
92 938: e1c120be strh r2, [r1, #14]
93 93c: e59f0020 ldr r0, [pc, #32] ; 0x964
94 940: e3a01b01 mov r1, #1024 ; 0x400
95 944: e2411004 sub r1, r1, #4 ; 0x4
96 948: e0802001 add r2, r0, r1
97 94c: e3c22003 bic r2, r2, #3 ; 0x3
98 950: e1a0d002 mov sp, r2
99 954: e92d100f stmdb sp!, {r0, r1, r2, r3, r12}
100 958: eb000534 bl 0x1e30
101 95c: e8bd100f ldmia sp!, {r0, r1, r2, r3, r12}
102 960: ea0005e4 b 0x20f8
103
104 964: 0083e574
105
106 <968-1E2F: not yet analyzed>
107
108 1e30: e92d4000 stmdb sp!, {lr}
109 1e34: e28fe001 add lr, pc, #1 ; 0x1
110 1e38: e12fff1e bx lr
111 1e3c: fe49f7fe bl 0xad2
112 1e40: 4778 bx pc
113 1e42: 46c0 nop (mov r8, r8)
114 1e44: e8bd8000 ldmia sp!, {pc}
115
116 <1E48-1EFF: all FFs>
117
118 1f00: 00000001
119
120 <1F04-end: all FFs>