Re: A83: label from input

To: assembly-83@lists.ticalc.org
Subject: Re: A83: label from input
From: "Revenant" <revenant_1@hotmail.com>
Date: Thu, 23 Jul 1998 12:57:34 PDT
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-83@lists.ticalc.org


Hey,
You can't jump to a label by putting the name of it in hl or anywhere 
because when the code is compiled all the labels disappear and all the 
jp Right, or such, turn into the position in ram and there are no labels 
in it.

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>
>dont bother using jp (hl) in this simple of a routine
>the only time jp (hl) can be useful is in a situation where you would 
need
>to  execute multiple RETs to escape from a subroutine.
>
>besides even if you used jp (hl) you would have to do a "cp" to set hl 
in
>the first place
>so just use cp xx , jr z,xxxx
>
>-Harper Maddox
>
>jerky@ebicom.net
>IRC nick: Geori
>ICQ: 1214597
>
>-----Original Message-----
>From: James Matthews <matthews@tkb.att.ne.jp>
>To: assembly-83@lists.ticalc.org <assembly-83@lists.ticalc.org>
>Date: Thursday, July 23, 1998 3:55 AM
>Subject: Re: A83: label from input
>
>
>>
>>> >Ok, here's another question; Is there anyway to store a word into a
>>varible
>>> >like 'hl', then without using 'cp', jump to a label called whatever 
'hl'
>>> >is?
>>>
>>> yes..
>>> 'jp (hl)'  works..
>>>
>>
>>Perhaps either me or Olle got confused here.  Aren't you asked whether 
you
>>can load, for example "LEFT" or "RIGHT" into hl and then jumping to 
the
>>label in your program:
>>
>>jp (hl)
>>...
>>..
>>.
>>LEFT:
>>...
>>..
>>.
>>RIGHT:
>>
>>I don't think you can that...just to clarify :)
>>
>>James.
>>
>>____________________
>>
>>James Matthews.
>>E-mail (family):    matthews@tkb.att.ne.jp
>>E-mail (private):  james_matthews@hotmail.com
>>
>>Homepage:  http://home.att.ne.jp/gold/tomcat21/index.html
>>ICQ:  7413754
>>____________________________________
>>
>
>

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Re: A83: label from input

From: Olle Hedman <oh@hem.passagen.se>