ack/mach/i86/libem/ror.s
1988-07-13 14:29:32 +00:00

38 lines
488 B
ArmAsm

.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .ror
! #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:
.extern EODDZ
.extern .trp
mov ax,EODDZ
push dx
jmp .trp