29 lines
306 B
ArmAsm
29 lines
306 B
ArmAsm
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.globl blm~
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.globl save~,retu~
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/ Size in r0
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blm~:
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jsr pc,save~
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mov (sp)+,r2
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mov (sp)+,r3
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mov r0,r1
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asr r0
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beq 2f
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/ Now avoid wrong copy.
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/ The pieces may overlap !
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cmp r3,r2
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beq 2f
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blt 3f
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1:
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mov (r3)+,(r2)+
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sob r0,1b
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2:
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jmp retu~
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3:
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add r1,r3
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add r1,r2
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4:
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mov -(r3),-(r2)
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sob r0,4b
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br 2b
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