12 lines
		
	
	
	
		
			125 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
	
		
			125 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
#include "sys.h"
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.globl	_alarm
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.globl	_errno
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_alarm:
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	mov	2(sp),r0
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	sys	alarm
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	bec	1f
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	mov	r0,_errno
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	mov	$-1,r0
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1:
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	rts	pc
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