Re: A86: CA check

To: assembly-86@lists.ticalc.org
Subject: Re: A86: CA check
From: David Phillips <electrum@tfs.net>
Date: Mon, 24 Aug 1998 21:38:17 -0500
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <000c01bdcfc8$24e5f120$3546dacd@computername>
Reply-To: assembly-86@lists.ticalc.org


Do you mean the carry flag?  If that is the case, there are a couple of
ways.  First, just use it for a conditional jump (or return/call):

jr c,CarryFlagSet
jr nc,CarryFlagNotSet

If you want the value as 1 or zero, clear a and add with a carry to 0:

ld a,0		; can't be xor a, since that clears flags
addc a,0	; add the carry flag to 0

At 09:31 PM 8/24/98 -0400, you wrote:
>    I know I have been asking alot of questions, but here's  another one:
>How would I find the value of CA? In the decimal to  fraction converter
>call, it returns 1 in CA if successful, how can I check what  it returns?
>Thanks in advance! --------------
>Jbrett
>tbarwick@esn.net
>http://ww2.esn.net/~tbarwick
>    

--
David Phillips
mailto:electrum@tfs.net
ICQ: 13811951
AOL/AIM: Electrum32

References:

A86: CA check

From: "JBrett" <tbarwick@esn.net>

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