26 lines
305 B
ArmAsm
26 lines
305 B
ArmAsm
|
.text
|
||
|
|
|
||
|
|
.globl _start
|
||
|
|
.extern k_main
|
||
|
|
.extern stack_ptr
|
||
|
|
|
||
|
|
_start:
|
||
|
|
mrs x0, mpidr_el1 // Check CPU ID
|
||
|
|
mov x1, 0xC1000000
|
||
|
|
bic x0, x0, x1
|
||
|
|
cbz x0, set_stack
|
||
|
|
b idle
|
||
|
|
|
||
|
|
set_stack:
|
||
|
|
ldr x30, stack_ptr // defined in sys/memmap
|
||
|
|
mov sp, x30
|
||
|
|
bl start
|
||
|
|
|
||
|
|
start:
|
||
|
|
mov x0, x30
|
||
|
|
bl k_main
|
||
|
|
|
||
|
|
idle:
|
||
|
|
b idle
|
||
|
|
|