20 lines
202 B
ArmAsm
20 lines
202 B
ArmAsm
.text
|
|
.globl rol~
|
|
.globl save~,retu~
|
|
|
|
rol~:
|
|
jsr pc,save~
|
|
mov (sp)+,r3
|
|
3: add r0,sp
|
|
mov r0,r1
|
|
asr r1
|
|
clc
|
|
1: rol -(sp)
|
|
sob r1,1b
|
|
bcc 2f
|
|
mov sp,r1
|
|
add r0,r1
|
|
bis $01,-(r1)
|
|
2: sob r3,3b
|
|
jmp retu~
|