ack/mach/pdp/libem/sru.s
1987-05-15 09:11:10 +00:00

31 lines
408 B
ArmAsm

.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text
.sect .text
.define sru~
.extern unknown~
! $Header$
sru~:
neg 2(sp)
mov (sp)+,r3
cmp r0,$02
bgt 1f
mov 2(sp),r1
clr r0
ashc (sp)+,r0
mov r1,(sp)
jmp (r3)
1: cmp r0,$04
bgt 3f
mov 02(sp),r0
mov 04(sp),r1
tst (sp)
beq 4f
ashc $-1,r0
bic $0100000,r0
inc (sp)
4: ashc (sp)+,r0
mov r0,(sp)
mov r1,02(sp)
jmp (r3)
3: jmp unknown~