Files
jsix/src/kernel/debug.s
2018-05-21 09:07:53 -07:00

32 lines
357 B
ArmAsm

global get_rsp
get_rsp:
mov rax, rsp
ret
global get_rip
get_rip:
pop rax ; do the same thing as 'ret', except with 'jmp'
jmp rax ; with the return address still in rax
global _halt
_halt:
hlt
jmp _halt
global get_frame
get_frame:
mov rcx, rbp
.loop:
mov rax, [rcx + 8]
mov rcx, [rcx]
cmp rdi, 0
je .done
sub rdi, 1
jmp .loop
.done:
ret