Re: A86: c flag

To: assembly-86@lists.ticalc.org
Subject: Re: A86: c flag
From: Steve86Asm@aol.com
Date: Sun, 9 Nov 1997 01:24:55 -0500 (EST)
Reply-To: assembly-86@lists.ticalc.org

That makes no sense...  Why go to the trouble of doing 3 calls and a whole
bunch more code, when you can just do a CP which is built into the
processor...

In a message dated 97-11-07 22:51:17 EST, you write:

> 
>  Here is a routine to do it:
>  
>  _setxxop1                          equ            4613h
>  _setxxop2				 equ		4617h		
>  _CPOP1OP2                          equ            41FBh
>  
>  	ld	a,(var1)
>  	call	_setxxop1			;Store into Op1
>  	ld	a,(var2)
>  	call	_setxxop2			;Store into Op2
>  	call	_CPOP1OP2			;Compare Op1/Op2
>  	jp	z,equal
>  	jp	nz,less
>  	jp	c,greater
>  
>  					-Ahmed
>  
>  At 01:43 AM 11/7/97 +0000, you wrote:
>  >can someone tell me how to use the c flag to determine if a value is
>  >equal to or above a number
>  >
>  >like if i have a with value 3 and b with value 4
>  >cp b
>  >jr c,bigger ; would this move to bigger if a >b or if b>a?
>  >

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