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annotate compal/boot/c156-boot.disasm @ 399:81cda18b0487

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compal: move all bootloader analysis work into boot subdir
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 14 Jan 2023 06:17:56 +0000
parents compal/c156-boot.disasm@5c47d916255e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 RESET entry and exception vectors:
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 0: ea000011 b 0x4c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 4: ea008036 b 0x200e4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 8: ea008036 b 0x200e8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5 c: ea008036 b 0x200ec
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 10: ea008036 b 0x200f0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 14: ea008036 b 0x200f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8 18: ea008036 b 0x200f8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9 1c: ea008036 b 0x200fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11 20: 02a102a1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12 24: 02a302a1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 28: 00000040
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14 2c: fffffd00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 30: ffff9800
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
16 34: fffffb10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
17 38: ffffff08
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
18 3c: 20021081
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
19 40: 00000800
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
20 44: 004000c0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21 48: 00000e85
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
23 ; RESET entry point
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
24 ; same init as in the C139 version
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25 4c: e51f1028 ldr r1, =0xfffffd00 ; via 0x2c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 50: e1d120b2 ldrh r2, [r1, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27 54: e51f0034 ldr r0, =0x40 ; via 0x28
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
28 58: e1800002 orr r0, r0, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
29 5c: e1c100b2 strh r0, [r1, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
30 ; disable PLL
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
31 ; diff from C139 version: writing 2002 into FFFF:9800 instead of 2006
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
32 ; diff in the BYPASS_DIV field
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
33 60: e51f1038 ldr r1, =0xffff9800 ; via 0x30
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
34 64: e15f22be ldrh r2, =0x2002 ; via 0x3e
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
35 68: e1c120b0 strh r2, [r1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
36 6c: e5912000 ldr r2, [r1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 70: e2022001 and r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 74: e3520001 cmp r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
39 78: 0afffffb beq 0x6c
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
40 ; FFFF:FD00 write same as C139
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
41 7c: e51f1058 ldr r1, =0xfffffd00 ; via 0x2c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
42 80: e15f24bc ldrh r2, =0x1081 ; via 0x3c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
43 84: e1c120b0 strh r2, [r1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
44 ; disable DU like C139
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
45 88: e51f105c ldr r1, =0xfffffb10 ; via 0x34
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
46 8c: e15f25b4 ldrh r2, =0x800 ; via 0x40
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
47 90: e1d100b0 ldrh r0, [r1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
48 94: e1800002 orr r0, r0, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
49 98: e1c100b0 strh r0, [r1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
50 ; ditto for MPU
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
51 9c: e51f106c ldr r1, =0xffffff08 ; via 0x38
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
52 a0: e15f26b6 ldrh r2, =0x0 ; via 0x42
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
53 a4: e1c120b0 strh r2, [r1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
54 ; Memory timings
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
55 a8: e59f1640 ldr r1, =0xfffffb00 ; via 0x6f0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
56 ac: e15f29b4 ldrh r2, =0x2a1 ; via 0x20
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
57 b0: e1c120b0 strh r2, [r1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
58 b4: e15f29ba ldrh r2, =0x2a1 ; via 0x22
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
59 b8: e1c120b2 strh r2, [r1, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
60 bc: e15f2ab0 ldrh r2, =0x2a1 ; via 0x24
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
61 c0: e1c120b4 strh r2, [r1, #4]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
62 c4: e15f2ab6 ldrh r2, =0x2a3 ; via 0x26
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
63 c8: e1c120b6 strh r2, [r1, #6]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
64 cc: e15f28bc ldrh r2, =0xe85 ; via 0x48
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
65 d0: e1c120ba strh r2, [r1, #10] ; 0xa
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
66 d4: e15f29b8 ldrh r2, =0xc0 ; via 0x44
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
67 d8: e1c120bc strh r2, [r1, #12] ; 0xc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
68 dc: e15f29be ldrh r2, =0x40 ; via 0x46
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
69 e0: e1c120b8 strh r2, [r1, #8]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
70 ; enable 8 MiB chip select regions
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
71 e4: e59f3630 ldr r3, =0xfffef006 ; via 0x71c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
72 e8: e1d310b0 ldrh r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
73 ec: e3a02008 mov r2, #8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
74 f0: e1811002 orr r1, r1, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
75 f4: e1c310b0 strh r1, [r3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
76 ; write 0x0110 into FFFE:F00A
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
77 ; enable I/O(8) and I/O(12)
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
78 f8: e59f3604 ldr r3, =0xfffef000 ; via 0x704
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
79 fc: e3a01e11 mov r1, #272 ; 0x110
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
80 100: e1c310ba strh r1, [r3, #10] ; 0xa
277
5c47d916255e compal/c156-boot.disasm: GPIO comments were wrong
Mychaela Falconia <falcon@freecalypso.org>
parents: 109
diff changeset
81 ; FFFE:4804: set GPIOs 8 and 12 as outputs
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
82 104: e59f3604 ldr r3, =0xfffe4804 ; via 0x710
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
83 108: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
84 10c: e3a030ff mov r3, #255 ; 0xff
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
85 110: e3a02cee mov r2, #60928 ; 0xee00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
86 114: e1822003 orr r2, r2, r3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
87 118: e0011002 and r1, r1, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
88 11c: e59f35e4 ldr r3, =0xfffe4800 ; via 0x708
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
89 120: e1c310b4 strh r1, [r3, #4]
277
5c47d916255e compal/c156-boot.disasm: GPIO comments were wrong
Mychaela Falconia <falcon@freecalypso.org>
parents: 109
diff changeset
90 ; ARMIO_LATCH_OUT: GPIO 8 set to 0
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
91 124: e59f35e0 ldr r3, =0xfffe4802 ; via 0x70c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
92 128: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
93 12c: e3a030ff mov r3, #255 ; 0xff
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
94 130: e3a02cfe mov r2, #65024 ; 0xfe00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
95 134: e1822003 orr r2, r2, r3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
96 138: e0011002 and r1, r1, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
97 13c: e59f35c4 ldr r3, =0xfffe4800 ; via 0x708
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
98 140: e1c310b2 strh r1, [r3, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
99 ; ... and then reset it to 0xF400
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
100 144: e3a01b3d mov r1, #62464 ; 0xf400
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
101 148: e59f35b8 ldr r3, =0xfffe4800 ; via 0x708
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
102 14c: e1c310b2 strh r1, [r3, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
103 ; SVC mode, IRQ and FIQ disabled
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
104 150: e10f0000 mrs r0, CPSR
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
105 154: e3c0001f bic r0, r0, #31 ; 0x1f
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
106 158: e3800013 orr r0, r0, #19 ; 0x13
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
107 15c: e38000c0 orr r0, r0, #192 ; 0xc0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
108 160: e129f000 msr CPSR_fc, r0
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
109 ; zero all 256 KiB IRAM except last 128 bytes
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
110 164: e3a00502 mov r0, #8388608 ; 0x800000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
111 168: e3a02000 mov r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
112 16c: e3a01721 mov r1, #8650752 ; 0x840000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
113 170: e2411080 sub r1, r1, #128 ; 0x80
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
114 174: e4802004 str r2, [r0], #4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
115 178: e1500001 cmp r0, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
116 17c: 1afffffc bne 0x174
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
117 ; ditto for 2 MiB XRAM
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
118 180: e3a00401 mov r0, #16777216 ; 0x1000000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
119 184: e3a02000 mov r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
120 188: e3a01612 mov r1, #18874368 ; 0x1200000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
121 18c: e2411080 sub r1, r1, #128 ; 0x80
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
122 190: e4802004 str r2, [r0], #4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
123 194: e1500001 cmp r0, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
124 198: 1afffffc bne 0x190
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
125 ; MODEM UART
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
126 19c: e59f0550 ldr r0, =0xffff5800 ; via 0x6f4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
127 ; 0 into LCR for IER access
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
128 1a0: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
129 1a4: e5c01003 strb r1, [r0, #3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
130 ; clear IER
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
131 1a8: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
132 1ac: e5c01001 strb r1, [r0, #1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
133 ; BF into LCR
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
134 1b0: e3a010bf mov r1, #191 ; 0xbf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
135 1b4: e5c01003 strb r1, [r0, #3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
136 ; 0x10 into EFR
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
137 1b8: e3a01010 mov r1, #16 ; 0x10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
138 1bc: e5c01002 strb r1, [r0, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
139 ; set 115200 baud
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
140 1c0: e59f3534 ldr r3, =0xffff5803 ; via 0x6fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
141 1c4: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
142 1c8: e3811080 orr r1, r1, #128 ; 0x80
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
143 1cc: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
144 1d0: e3a01007 mov r1, #7
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
145 1d4: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
146 1d8: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
147 1dc: e5c01001 strb r1, [r0, #1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
148 ; LCR will eventually get back to 03
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
149 1e0: e59f3514 ldr r3, =0xffff5803 ; via 0x6fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
150 1e4: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
151 1e8: e201107f and r1, r1, #127 ; 0x7f
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
152 1ec: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
153 1f0: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
154 1f4: e3811003 orr r1, r1, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 1f8: e5c31000 strb r1, [r3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
156 ; 0x40 into MCR: TCR/TLR access
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 1fc: e3a01040 mov r1, #64 ; 0x40
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 200: e5c01004 strb r1, [r0, #4]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
159 ; TCR=0x0F (same as default)
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
160 204: e3a0100f mov r1, #15 ; 0xf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
161 208: e5c01006 strb r1, [r0, #6]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
162 ; BF into LCR again
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
163 20c: e3a010bf mov r1, #191 ; 0xbf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
164 210: e5c01003 strb r1, [r0, #3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
165 ; 0x10 into EFR again
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
166 214: e3a01010 mov r1, #16 ; 0x10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
167 218: e5c01002 strb r1, [r0, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
168 ; finally 03 into LCR
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
169 21c: e3a01003 mov r1, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
170 220: e5c01003 strb r1, [r0, #3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
171 ; clear SCR (default, all weird stuff disabled)
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
172 224: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
173 228: e5c01010 strb r1, [r0, #16] ; 0x10
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
174 ; FCR=06: FIFOs cleared and *disabled*
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
175 22c: e3a01006 mov r1, #6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
176 230: e5c01002 strb r1, [r0, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
177 ; MCR=0F
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
178 234: e3a0100f mov r1, #15 ; 0xf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
179 238: e5c01004 strb r1, [r0, #4]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
180 ; FCR=F1: enable FIFOs with max trigger levels
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
181 23c: e3a010f1 mov r1, #241 ; 0xf1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
182 240: e5c01002 strb r1, [r0, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
183 ; MDR1: write 7 for reset, then 0 for UART mode
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
184 244: e3a01007 mov r1, #7
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
185 248: e5c01008 strb r1, [r0, #8]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
186 24c: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
187 250: e5c01008 strb r1, [r0, #8]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
188 ; IER: enable Rx interrupt
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
189 254: e59f349c ldr r3, =0xffff5801 ; via 0x6f8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
190 258: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
191 25c: e3811001 orr r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
192 260: e5c31000 strb r1, [r3]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
193 ; nCS0: WS=3, write enable, DC=1
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
194 264: e59f1484 ldr r1, =0xfffffb00 ; via 0x6f0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
195 268: e59f247c ldr r2, =0x2a3 ; via 0x6ec
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
196 26c: e1c120b0 strh r2, [r1]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
197 ; FFFF:FB0E = 0x6A: adapt enabled for RHEA and API,
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
198 ; all ARM7 cycles visible externally
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
199 270: e59f3488 ldr r3, =0xfffffb00 ; via 0x700
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
200 274: e3a0106a mov r1, #106 ; 0x6a
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
201 278: e1c310be strh r1, [r3, #14] ; 0xe
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
202 ; dingle UART FIFOs again, same settings
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
203 27c: e59f0470 ldr r0, =0xffff5800 ; via 0x6f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
204 280: e3a010f7 mov r1, #247 ; 0xf7
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
205 284: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
206 288: e3a010f1 mov r1, #241 ; 0xf1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
207 28c: e5c01002 strb r1, [r0, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
208 ; short delay loop
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
209 290: e3a01f4b mov r1, #300 ; 0x12c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
210 294: e2411001 sub r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
211 298: e3510000 cmp r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
212 29c: 1afffffc bne 0x294
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
213 ; check UART for unsolicited input?
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
214 2a0: e59f044c ldr r0, =0xffff5800 ; via 0x6f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
215 2a4: e3a02064 mov r2, #100 ; 0x64
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
216 2a8: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
217 2ac: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
218 2b0: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
219 2b4: 0a000040 beq 0x3bc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
220 2b8: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
221 2bc: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
222 2c0: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
223 2c4: 1afffff8 bne 0x2ac
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
224 2c8: e5d01000 ldrb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
225 ; unsolicited input received
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
226 ; repeats the whole UART init, but with /2 div for 406250 baud
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
227 2cc: e59f0420 ldr r0, =0xffff5800 ; via 0x6f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
228 2d0: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
229 2d4: e5c01003 strb r1, [r0, #3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
230 2d8: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
231 2dc: e5c01001 strb r1, [r0, #1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
232 2e0: e3a010bf mov r1, #191 ; 0xbf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
233 2e4: e5c01003 strb r1, [r0, #3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
234 2e8: e3a01010 mov r1, #16 ; 0x10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
235 2ec: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
236 2f0: e59f3404 ldr r3, =0xffff5803 ; via 0x6fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
237 2f4: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
238 2f8: e3811080 orr r1, r1, #128 ; 0x80
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
239 2fc: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
240 300: e3a01002 mov r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
241 304: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
242 308: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
243 30c: e5c01001 strb r1, [r0, #1]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
244 310: e59f33e4 ldr r3, =0xffff5803 ; via 0x6fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
245 314: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
246 318: e201107f and r1, r1, #127 ; 0x7f
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
247 31c: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
248 320: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
249 324: e3811003 orr r1, r1, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
250 328: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
251 32c: e3a01040 mov r1, #64 ; 0x40
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
252 330: e5c01004 strb r1, [r0, #4]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
253 334: e3a0100f mov r1, #15 ; 0xf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
254 338: e5c01006 strb r1, [r0, #6]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
255 33c: e3a010bf mov r1, #191 ; 0xbf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
256 340: e5c01003 strb r1, [r0, #3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
257 344: e3a01010 mov r1, #16 ; 0x10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
258 348: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
259 34c: e3a01003 mov r1, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
260 350: e5c01003 strb r1, [r0, #3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
261 354: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
262 358: e5c01010 strb r1, [r0, #16] ; 0x10
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
263 35c: e3a01006 mov r1, #6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
264 360: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
265 364: e3a0100f mov r1, #15 ; 0xf
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
266 368: e5c01004 strb r1, [r0, #4]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
267 36c: e3a010f1 mov r1, #241 ; 0xf1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
268 370: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
269 374: e3a01007 mov r1, #7
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
270 378: e5c01008 strb r1, [r0, #8]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
271 37c: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
272 380: e5c01008 strb r1, [r0, #8]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
273 384: e59f336c ldr r3, =0xffff5801 ; via 0x6f8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
274 388: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
275 38c: e3811001 orr r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
276 390: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
277 394: e59f0358 ldr r0, =0xffff5800 ; via 0x6f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
278 398: e3a010f7 mov r1, #247 ; 0xf7
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
279 39c: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
280 3a0: e3a010f1 mov r1, #241 ; 0xf1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
281 3a4: e5c01002 strb r1, [r0, #2]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
282 3a8: e3a01f4b mov r1, #300 ; 0x12c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
283 3ac: e2411001 sub r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
284 3b0: e3510000 cmp r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
285 3b4: 1afffffc bne 0x3ac
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
286 3b8: e59f0334 ldr r0, =0xffff5800 ; via 0x6f4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
287 ; normal path continues
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
288 ; emit 1B F6 02 00 41 01 40
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
289 3bc: e3a0101b mov r1, #27 ; 0x1b
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
290 3c0: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
291 3c4: e3a010f6 mov r1, #246 ; 0xf6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
292 3c8: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
293 3cc: e3a01002 mov r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
294 3d0: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
295 3d4: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
296 3d8: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
297 3dc: e3a01041 mov r1, #65 ; 0x41
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
298 3e0: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
299 3e4: e3a01001 mov r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
300 3e8: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
301 3ec: e3a01040 mov r1, #64 ; 0x40
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
302 3f0: e5c01000 strb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
303 ; wait for UART input
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
304 3f4: e3a02064 mov r2, #100 ; 0x64
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
305 3f8: e3a08701 mov r8, #262144 ; 0x40000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
306 3fc: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
307 400: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
308 404: 0a0000aa beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
309 408: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
310 40c: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
311 410: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
312 414: 1afffff8 bne 0x3fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
313 418: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
314 41c: e3510000 cmp r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
315 420: 1a000003 bne 0x434
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
316 424: e2422001 sub r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
317 428: e3520000 cmp r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
318 42c: 0a0000a0 beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
319 430: eafffff1 b 0x3fc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
320 434: e351001b cmp r1, #27 ; 0x1b
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
321 438: 1affffef bne 0x3fc
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
322 ; got 1B
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
323 43c: e3a08701 mov r8, #262144 ; 0x40000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
324 440: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
325 444: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
326 448: 0a000099 beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
327 44c: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
328 450: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
329 454: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
330 458: 1afffff8 bne 0x440
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
331 45c: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
332 460: e35100f6 cmp r1, #246 ; 0xf6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
333 464: 1a000092 bne 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
334 ; got F6
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
335 468: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
336 46c: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
337 470: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
338 474: 0a00008e beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
339 478: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
340 47c: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
341 480: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
342 484: 1afffff8 bne 0x46c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
343 488: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
344 48c: e3510002 cmp r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
345 490: 1a000087 bne 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
346 ; got 02
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
347 494: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
348 498: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
349 49c: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
350 4a0: 0a000083 beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
351 4a4: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
352 4a8: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
353 4ac: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
354 4b0: 1afffff8 bne 0x498
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
355 4b4: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
356 4b8: e3510000 cmp r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
357 4bc: 1a00007c bne 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
358 ; got 00
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
359 4c0: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
360 4c4: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
361 4c8: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
362 4cc: 0a000078 beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
363 4d0: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
364 4d4: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
365 4d8: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
366 4dc: 1afffff8 bne 0x4c4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
367 4e0: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
368 4e4: e3510052 cmp r1, #82 ; 0x52
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
369 4e8: 1a000071 bne 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
370 ; got 52
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
371 4ec: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
372 4f0: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
373 4f4: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
374 4f8: 0a00006d beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
375 4fc: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
376 500: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
377 504: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
378 508: 1afffff8 bne 0x4f0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
379 50c: e5d01000 ldrb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
380 510: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
381 514: 1a000066 bne 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
382 ; got 01
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
383 518: e3a08801 mov r8, #65536 ; 0x10000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
384 51c: e2488001 sub r8, r8, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
385 520: e3580000 cmp r8, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
386 524: 0a000062 beq 0x6b4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
387 528: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
388 52c: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
389 530: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
390 534: 1afffff8 bne 0x51c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
391 538: e59f01b4 ldr r0, =0xffff5800 ; via 0x6f4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
392 53c: e5d01000 ldrb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
393 ; emit 1B F6 02 00 41 02 43 before checking the last Rx char!
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
394 540: e3a0201b mov r2, #27 ; 0x1b
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
395 544: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
396 548: e3a020f6 mov r2, #246 ; 0xf6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
397 54c: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
398 550: e3a02002 mov r2, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
399 554: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
400 558: e3a02000 mov r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
401 55c: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
402 560: e3a02041 mov r2, #65 ; 0x41
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
403 564: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
404 568: e3a02002 mov r2, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
405 56c: e5c02000 strb r2, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
406 570: e3a02043 mov r2, #67 ; 0x43
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
407 574: e5c02000 strb r2, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
408 ; now check for 53
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
409 ; if not 53, go back to wait for 01-53
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
410 578: e3510053 cmp r1, #83 ; 0x53
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
411 57c: 0a000000 beq 0x584
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
412 580: eaffffda b 0x4f0
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
413 ; got 53
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
414 584: e3a02000 mov r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
415 588: e59f3190 ldr r3, =0x800100 ; via 0x720
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
416 58c: e3a04000 mov r4, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
417 590: e3a05001 mov r5, #1
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
418 ; endless wait for Rx byte
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
419 594: e5d01005 ldrb r1, [r0, #5]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
420 598: e2011001 and r1, r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
421 59c: e3510001 cmp r1, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
422 5a0: 1afffffb bne 0x594
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
423 5a4: e5d01000 ldrb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
424 ; state machine dispatch
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
425 5a8: e3520000 cmp r2, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
426 5ac: 0a000008 beq 0x5d4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
427 5b0: e3520001 cmp r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
428 5b4: 0a00000b beq 0x5e8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
429 5b8: e3520002 cmp r2, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
430 5bc: 0a00000d beq 0x5f8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
431 5c0: e3520003 cmp r2, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
432 5c4: 0a00000f beq 0x608
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
433 5c8: e3520004 cmp r2, #4
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
434 5cc: 0a000015 beq 0x628
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
435 5d0: ea000037 b 0x6b4
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
436 ; R2=0: must receive 02 first
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
437 5d4: e3510002 cmp r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
438 5d8: 1affffed bne 0x594
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
439 5dc: e1a06001 mov r6, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
440 5e0: e2822001 add r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
441 5e4: eaffffea b 0x594
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
442 ; R2=1: got MSB of length
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
443 5e8: e1a04401 mov r4, r1, lsl #8
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
444 5ec: e0266001 eor r6, r6, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
445 5f0: e2822001 add r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
446 5f4: eaffffe6 b 0x594
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
447 ; R2=2: got LSB of length
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
448 5f8: e0844001 add r4, r4, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
449 5fc: e0266001 eor r6, r6, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
450 600: e2822001 add r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
451 604: eaffffe2 b 0x594
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
452 ; R2=3: payload
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
453 608: e5c31000 strb r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
454 60c: e0266001 eor r6, r6, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
455 610: e2833001 add r3, r3, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
456 614: e2444001 sub r4, r4, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
457 618: e3540000 cmp r4, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
458 61c: 1affffdc bne 0x594
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
459 620: e2822001 add r2, r2, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
460 624: eaffffda b 0x594
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
461 ; R2=4: checksum expected
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
462 628: e1560001 cmp r6, r1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
463 62c: 1a000012 bne 0x67c
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
464 ; checksum good
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
465 ; emit 1B F6 02 00 41 03 42
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
466 630: e3a0101b mov r1, #27 ; 0x1b
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
467 634: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
468 638: e3a010f6 mov r1, #246 ; 0xf6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
469 63c: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
470 640: e3a01002 mov r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
471 644: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
472 648: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
473 64c: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
474 650: e3a01041 mov r1, #65 ; 0x41
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
475 654: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
476 658: e3a01003 mov r1, #3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
477 65c: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
478 660: e3a01042 mov r1, #66 ; 0x42
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
479 664: e5c01000 strb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
480 ; SP=0x803FFC
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
481 668: e59f00b4 ldr r0, =0x803ffc ; via 0x724
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
482 66c: e1a0d000 mov sp, r0
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
483 ; jump to 0x800100 in Thumb state
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
484 670: e59f00a8 ldr r0, =0x800100 ; via 0x720
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
485 674: e280e001 add lr, r0, #1
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
486 678: e12fff1e bx lr
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
487 ; checksum mismatch
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
488 ; emit 1B F6 02 00 45 53 16
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
489 67c: e3a0101b mov r1, #27 ; 0x1b
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
490 680: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
491 684: e3a010f6 mov r1, #246 ; 0xf6
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
492 688: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
493 68c: e3a01002 mov r1, #2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
494 690: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
495 694: e3a01000 mov r1, #0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
496 698: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
497 69c: e3a01045 mov r1, #69 ; 0x45
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
498 6a0: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
499 6a4: e3a01053 mov r1, #83 ; 0x53
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
500 6a8: e5c01000 strb r1, [r0]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
501 6ac: e3a01016 mov r1, #22 ; 0x16
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
502 6b0: e5c01000 strb r1, [r0]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
503 ; bail out path
277
5c47d916255e compal/c156-boot.disasm: GPIO comments were wrong
Mychaela Falconia <falcon@freecalypso.org>
parents: 109
diff changeset
504 ; ARMIO_LATCH_OUT: set GPIO 9 low
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
505 6b4: e59f3050 ldr r3, =0xfffe4802 ; via 0x70c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
506 6b8: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
507 6bc: e3a030ff mov r3, #255 ; 0xff
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
508 6c0: e3a02cfd mov r2, #64768 ; 0xfd00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
509 6c4: e1822003 orr r2, r2, r3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
510 6c8: e0011002 and r1, r1, r2
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
511 6cc: e59f3034 ldr r3, =0xfffe4800 ; via 0x708
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
512 6d0: e1c310b2 strh r1, [r3, #2]
109
e40592990516 C156 boot code cracked
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 108
diff changeset
513 ; switch GPIO12 back to input
108
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
514 6d4: e59f3034 ldr r3, =0xfffe4804 ; via 0x710
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
515 6d8: e5931000 ldr r1, [r3]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
516 6dc: e3811a01 orr r1, r1, #4096 ; 0x1000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
517 6e0: e59f3020 ldr r3, =0xfffe4800 ; via 0x708
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
518 6e4: e1c310b4 strh r1, [r3, #4]
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
519 6e8: ea007e7c b 0x200e0
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
520
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
521 6ec: 000002a3
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
522 6f0: fffffb00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
523 6f4: ffff5800
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
524 6f8: ffff5801
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
525 6fc: ffff5803
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
526 700: fffffb00
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
527 704: fffef000
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
528 708: fffe4800
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
529 70c: fffe4802
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
530 710: fffe4804
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
531 714: fffe480c
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
532 718: fffe480a
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
533 71c: fffef006
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
534 720: 00800100
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
535 724: 00803ffc
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
536
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
537 <728-7FF: all FFs>
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
538
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
539 00000800: 42 4F 4F 54 2E 39 30 2E 30 35 00 00 00 00 00 00 BOOT.90.05......
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
540 00000810: 31 30 30 33 01 02 00 00 FF FF FF FF FF FF FF FF 1003............
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
541 00000820: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF ................
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
542
85bb35342834 C156 boot code disassembly started
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
543 blank flash from here onward, until the main fw image starts at 0x20000