20 lines
		
	
	
	
		
			194 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			20 lines
		
	
	
	
		
			194 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
#include "sys.h"
 | 
						|
.define	_dup
 | 
						|
.define	_dup2
 | 
						|
.extern	_errno
 | 
						|
 | 
						|
_dup2:
 | 
						|
	mov	2(sp),r0
 | 
						|
	bis	$100,r0
 | 
						|
	br	1f
 | 
						|
 | 
						|
_dup:
 | 
						|
	mov	2(sp),r0
 | 
						|
1:
 | 
						|
	mov	4(sp),r1
 | 
						|
	sys	dup
 | 
						|
	bcc	1f
 | 
						|
	mov	r0,_errno
 | 
						|
	mov	$-1,r0
 | 
						|
1:
 | 
						|
	rts	pc
 |