Re: A86: cphlde

To: assembly-86@lists.ticalc.org
Subject: Re: A86: cphlde
From: Grams Family <grams@netcarrier.com>
Date: Tue, 05 May 1998 15:48:34
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <354D4744.E4206039@eden.rutgers.edu>
Reply-To: assembly-86@lists.ticalc.org

At 12:42 AM 5/4/98 -0400, you wrote:
>
>I disassembled _cphlde ($403c) to find out which flags are set.  I'm not
>sure how the carry flag is affected, but you can use the sign flag to
>check for inequalities:
>
> call _cphlde
> jr z,de_equal_to_hl
> jr p,de_less_than_hl
> jr m,de_greater_than_hl

You should really use the carry flag to check for inequalities, that's the
way it's usually done.

jr c,de_less_than_hl

BTW, the _cphlde and other compare routines function exactly the same as
the cp instruction.

--Joshua

Follow-Ups:

Re: A86: cphlde

From: Dan Eble <eble@cis.ohio-state.edu>

References:

A86: cphlde

From: Dux Gregis <assets@eden.rutgers.edu>

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