22 lines
		
	
	
	
		
			251 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
	
		
			251 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
.sect .text; .sect .rom; .sect .data; .sect .bss
 | 
						|
.define .exg
 | 
						|
 | 
						|
	! #bytes in cx
 | 
						|
.sect .text
 | 
						|
.exg:
 | 
						|
	push	di
 | 
						|
	mov	di,sp
 | 
						|
	add	di,4
 | 
						|
	mov	bx,di
 | 
						|
	add	bx,cx
 | 
						|
	sar     cx,1
 | 
						|
1:
 | 
						|
	mov	ax,(bx)
 | 
						|
	xchg	ax,(di)
 | 
						|
	mov	(bx),ax
 | 
						|
	add	di,2
 | 
						|
	add	bx,2
 | 
						|
	loop	1b
 | 
						|
2:
 | 
						|
	pop	di
 | 
						|
	ret
 |