mirror of
https://salsa.debian.org/gnuk-team/gnuk/gnuk.git
synced 2024-09-20 02:40:08 +00:00
20 lines
356 B
ArmAsm
20 lines
356 B
ArmAsm
/* ARM Thumb Assembler code */
|
|
// arm-none-eabi-gcc -Wa,-amhls=blank_check.lst -c blank_check.S
|
|
|
|
.cpu cortex-m0
|
|
.thumb
|
|
ldr r1, .START_ADDR
|
|
ldr r2, .END_ADDR
|
|
0: ldr r0, [r1]
|
|
add r0, r0, #1
|
|
bne 1f
|
|
add r1, r1, #4
|
|
cmp r1, r2
|
|
bne 0b
|
|
1: bkpt #0x00
|
|
// success: r0=0
|
|
// fail: r0!=0
|
|
.align 2
|
|
.START_ADDR: .word 0x08000000
|
|
.END_ADDR: .word 0x08020000
|