18 lines
		
	
	
	
		
			212 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
	
		
			212 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
#include "sys.h"
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.globl	_vfork
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.globl	_errno
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_vfork:
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	mov	(sp)+,r1
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	sys	vfork
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	br	1f
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	bec	2f
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3:	mov	r0,_errno
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	mov	$-1,r0
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	jmp	(r1)
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1:			/ child, or vfork systemcall does not exist
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	bes	3b
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	clr	r0
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2:
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	jmp	(r1)
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