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
.global start
.global stack
.global reset
.global dst_addr
.global src_addr
.global words
.text
.thumb
.align 0
start:
ldr r0, dst_addr
ldr r1, src_addr
ldr r2, words
b check
copy:
ldmia r1!, {r3}
stmia r0!, {r3}
sub r2, #1
check:
cmp r2, #0
bne copy
@ Fix for SAM-BA stack bug
ldr r0, reset
cmp r0, #0
bne return
ldr r0, stack
mov sp, r0
return:
bx lr
.align 0
stack:
.word 0
reset:
.word 0
dst_addr:
.word 0
src_addr:
.word 0
words:
.word 0