school/ecen425/yaks.s

40 lines
395 B
ArmAsm

YKIdleTask:
push bp
mov bp, sp
yak_loop:
inc word [YKIdleCount]
jmp yak_loop
YKDispatcher:
cli
push bp
mov bp, sp
mov bx, [bp+4] ;Obtain stack pointer from TCB
mov sp, [bx+4] ;Load stack pointer into SP
pop bp
pop es
pop ds
pop si
pop di
pop dx
pop cx
pop bx
pop ax
iret
YKEnterMutex:
cli
ret
YKExitMutex:
sti
ret