15 lines
		
	
	
	
		
			196 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
	
		
			196 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
| .sect .text; .sect .rom; .sect .data; .sect .bss
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| .define _rdchk
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| .sect .text
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| _rdchk:
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| 	mov	ax,1832
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| 	push	bp
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| 	mov	bp,sp
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| 	mov	bx,4(bp)
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| 	call	syscal
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| 	jae	1f
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| 	mov	(_errno),ax
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| 	mov	ax,-1
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| 1:
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| 	pop	bp
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| 	ret
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