Re: Rom 03 Paintworks Gold Fix

[rubywand@aol.com (RUBYWAND)]

In article <dempson-0608962315280001@dempson.actrix.gen.nz>,
dempson@actrix.gen.nz (David Empson) writes:

>
>z008729b@bcfreenet.seflin.lib.fl.us (Martin Gruen) wrote:
>>
>>  It's not often there's an answer here without the question, but I
tripped 
>>across this in an old Incider/A+ issue and I thought it was just real 
>>good to know, hope at least one person is helped by this:
>>....
>>Paintworks Gold is incompatible with Rom 03
>
>Not just the ROM 3: it usually fails to work under recent system software
>on a ROM 1 as well.
>
>The problem is that it reserves several 64K banks of RAM.  It doesn't
care
>which ones it gets, but it requires full banks (not 64K areas which cross
>bank boundaries).  The catch is that it limits the number of banks it
>searches to something ridiculous like 8, and with recent system software
>(especially when booted off a hard drive) there tend to be a lot of FSTs
>and other system software bits cluttering up banks 2, 3, 4, ..., not
>leaving enough entirely empty banks for Paintworks Gold.
>
>The patch you quoted increases the limit so that it will look through the
>8MB address space (or as far as the Memory Manager will let it go, if
less
>than 8MB).


     PaintWorks Gold does, indeed, pose problems for both ROM-01 and
ROM-03 GS's when run under System 6.  (Many users began to notice
difficulties about the time of the change-over to GS/OS 5.x.) 

     It is unclear where the fix first appeared. The Kzin Warrior
published a block edit patch version in Computist 5-6 years ago. Using
ProSel's Zap utility (also called "Block Warden") you search for $C9 08 00
D0 CE on the PaintWorks Gold diskette (or a copy).  Change the 08 to 7F.

     The Patch allows you to use most PWG features. However, some Palette
selection options will bomb the program. 

 

Rubywand