ack/mach/i86/libem/ror.s
1985-02-17 00:57:20 +00:00

35 lines
419 B
ArmAsm

.define .ror
! $Header$
! #bytes in ax
.ror:
pop dx ! return address
cmp ax,2
jne 1f
pop ax
pop cx
ror ax,cl
push ax
jmp dx
1:
cmp ax,4
jne 9f
pop cx
jcxz 2f
neg cx
add cx,32
pop ax
pop bx
3:
sar bx,1
rcr ax,1
loop 3b
push bx
push ax
2:
jmp dx
9:
mov ax,EODDZ
push ax
jmp .trp