1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
.globl _tas
_tas:
mov r3, #0xCA000000
add r3, r3, #0xFE0000
add r3, r3, #0xBA00
add r3, r3, #0xBE
swp r3, r3, [r0]
mov r0, r3
mov pc, lr
.globl getmcontext
getmcontext:
/* r0 will be overwritten */
str r1, [r0,#4]!
str r2, [r0,#4]!
str r3, [r0,#4]!
str r4, [r0,#4]!
str r5, [r0,#4]!
str r6, [r0,#4]!
str r7, [r0,#4]!
str r8, [r0,#4]!
str r9, [r0,#4]!
str r10, [r0,#4]!
str r11, [r0,#4]!
str r12, [r0,#4]!
str r13, [r0,#4]!
str r14, [r0,#4]!
/* r15 is pc */
mov r0, #0
mov pc, lr
.globl setmcontext
setmcontext:
/* r0 will be overwritten */
ldr r1, [r0,#4]!
ldr r2, [r0,#4]!
ldr r3, [r0,#4]!
ldr r4, [r0,#4]!
ldr r5, [r0,#4]!
ldr r6, [r0,#4]!
ldr r7, [r0,#4]!
ldr r8, [r0,#4]!
ldr r9, [r0,#4]!
ldr r10, [r0,#4]!
ldr r11, [r0,#4]!
ldr r12, [r0,#4]!
ldr r13, [r0,#4]!
ldr r14, [r0,#4]!
/* r15 is pc */
mov r0, #1
mov pc, lr
|