;;TRIANGLE.ASM
;;Link with ml triangle.asm util.lib
;;if a+b > c for all 3 sides, the sides form a triangle
;;pg 131 5.3
;;
;; Can't assemble this: ?

INCLUDE PCMAC.INC

	.MODEL	SMALL
	.586
	.STACK	100h
	
	.DATA
	
Prompt	DB	'Enter a number: $'
OutMsg1	DB	'The sides make a traingle. $'
OutMsg2	DB	'The sides don't make a triangle. $'
A	DB	?
B	DB	?
C	DB	?


	.CODE
	
	EXTRN	GetDec	:  NEAR
	
	
Triangle	PROC
		mov	cx,3
GoLoop:		
		_Begin
		
		_PutStr	Prompt
		call	GetDec
		push	ax
		dec 	cx
		jnz	GoLoop
		
		pop	C
		pop	B
		pop	A
		
		mov	dx,C
		add	dx,B
		cmp	dx,A	;is C+B>A
		jng	Done
		
		mov	dx,B
		add	dx,A
		cmp	dx,C	;is B+A>C
		jng	Done
		
		mov	dx,A
		add	dx,C
		cmp	dx,B	;is A+C>B
		jng	Done
				
		_PutStr	OutMsg1
		
	Done:
		_PutStr	OutMsg2
					
		_Exit	0
		
Triangle	ENDP
		END	Triangle