Re: A82: Efficiency

To: assembly-82@lists.ticalc.org
Subject: Re: A82: Efficiency
From: "A. El-Helw" <ahmed3@worldnet.att.net>
Date: Thu, 01 Jan 1998 22:17:24 -0500
In-Reply-To: <3eeb1360.34ac3bcb@aol.com>
Reply-To: assembly-82@lists.ticalc.org


LDIR is used to put a pic on the screen...
RST has different uses... In 86 ASM, you can do 

 rst 20h     ; Copy HL to OP1
 rst 10h     ; Looks up variable, BDE = ABS addr to program

which proves to be useful in saving variables [like high scores].

					-Ahmed.


At 12:58 AM 1/2/98 +0000, you wrote:
>
>Right now, an assembler I am working on can only correctly compile programs
>under 256 bytes (why..I'm still working on that). However, I still want to
>program assembly until the problem is fixed.
>
>Does anyone know of any small, useful lines of code that get a lot done in a
>little space?
>
>Also, would the following questions save space?
>how do you use EX and EXX and what is AF'?
>how do you use IND, INDR, INI, INIR?
>how do you use LDD, LDDR, LDI, LDIR
>does RST have any usefullness?
>
>Thankyou,
>Matt Stack
>

References:

A82: Efficiency

From: Asmti82 <Asmti82@aol.com>

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