minix/lib/i86/em/em_xor.s
2009-11-09 10:26:00 +00:00

18 lines
172 B
ArmAsm

.define .xor
.text
! #bytes in cx
.xor:
pop bx ! return address
mov dx,di
mov di,sp
add di,cx
sar cx,#1
1:
pop ax
xor ax,(di)
stos
loop 1b
mov di,dx
jmp (bx)