Re: A82: Re:

To: assembly-82@lists.ticalc.org
Subject: Re: A82: Re:
From: "Evil Sam" <evil_sam@hotmail.com>
Date: Fri, 25 Sep 1998 21:15:29 PDT
Delivered-To: assembly-82-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-82@lists.ticalc.org


>>   I was wondering if this kind of 86 ASM code works on the 82:
>>  
>>  
>>      ld a,%10000000
>>      ld (ColMask),a
>>  
>>      ld a,(Pov)
>>  Modif_Fov equ $+1
>>      add a,20h
>>      ld (Ray),a
>>  
>>  Modif_StartCol equ $+1
>>      ld a,20h
>>      ld (CurrCol),a
>>  
>>  Modif_NbCol equ $+1
>>      ld a,40h
>>      ld (NbCol),a
>>  
>>   
>>  
>>     Sam
>
>I guess so, but replace the equ's with ='s... I'm not sure what the 
point of
>all that is, but it looks like some sort of self-modifying 
code...actually,
>thats exactly what it is, and it's pretty cool!  What is that from, 
Maze 3D?
>
>~Adamman
>

    I'm guessing the label "Ray" tipped it off. Clem says using this 
style instead of simple "ld" command is faster, I wouldn't know. He uses 
CAZ, not TASM, so I'm not sure if I have to change it completely to 
simple "ld" commands or if there is a way similar to this on the 82. 
I'll try equ's -> =, when I get around to porting it.

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