Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!yale.edu!cmcl2!rutgers!cbmvax!chrisg
From: chrisg@cbmvax.commodore.com (Chris Green)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Assembly Graphics Help Needed
Message-ID: <22701@cbmvax.commodore.com>
Date: 26 Jun 91 14:26:52 GMT
References: <91177.015130G60LG@CUNYVM.BITNET>
Reply-To: chrisg@cbmvax.commodore.com (Chris Green)
Organization: Commodore, West Chester, PA
Lines: 36

In article <91177.015130G60LG@CUNYVM.BITNET> G60LG@CUNYVM.BITNET (Anton Mitchell) writes:
>
>     I have tried to get this assembly program to work for the longest.
>Any help would be great. What I dont understand is when assembled and
>executed the bitplanes are not cleared. When allocating the memory I set
>the Clear and Chip flags. But it is not cleared. The only way I have been
>able to clear the bitplanes is by using:
>                                         lea     PlaneAdr,a1
>                                         move.l  PlaneSize*6,d1
>                                 Loop:   move.w  #0,(a1)+
>                                         dbra    d1,Loop
>Also when executed several times the bars which usually present in a
>blue wind up with other colors etc. And after several executions it will
>not execute. Any help on what is wrong with the code would be great. I
>have just started programming Assembly and I am going crazy with this
>program.
>
>                                             Thanks in Advance,
>                                             Anton Mitchell
>
>
> move.w #PlaneSize*6,d0
	This should be MOVE.L #PlaneSize*6,d0
> move.w Clear,d1
	This should be MOVE.L #Clear,d1


	Also, your replacement of the system copper list didn't look robust enough.
That would explain your messed up colors.
-- 
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|Chris Green - Graphics Software Engineer   - chrisg@commodore.COM      f
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|My opinions are my own, and do not         - killyouridolssonicdeath   o
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