Re: A86:ldir

To: assembly-86@lists.ticalc.org
Subject: Re: A86:ldir
From: ComAsYuAre@aol.com
Date: Mon, 15 Feb 1999 11:00:35 EST
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-86@lists.ticalc.org
Reply-To: assembly-86@lists.ticalc.org


with ldir, the count is in bc, not b.
so
	ld b,12
should be
	ld bc,12


In a message dated 2/13/99 2:17:03 AM Eastern Standard Time,
chicane@reninet.com writes:

> 
>  Does anyone know of any side effects to ldir?
>  
>  I replaced this code:
>  
>  Label1:
>  	ld	hl,SomeAddress
>  	ld	de,_OP1
>  	ld	b,12
>  Label2:
>  	ld	a,(hl)
>  	ld	(de),a
>  	inc	hl
>  	inc	de
>  	djnz	Label2
>  	ret
>  
>  With this:
>  Label1:
>  	ld	hl,SomeAddress
>  	ld	de,_OP1
>  	ld	b,12
>  	ldir
>  	ret
>  When i change it, the new program crashes my calc, but the old one didnt.
>  Why is this? They are virtualy the same thing right? Thx to anyone who can
>  help.

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