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