Re: Zshell programs to ASM


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Re: Zshell programs to ASM



One of the most fundemental problems is that the 83 has a smaller
screen (pixels) than an 85. You will have to adjust the pixel values.


On Sat, 23 Nov 1996 15:02:30 -0800, Von Dollen <svndlln@rain.org>
wrote:


>DM wrote:
>>
>> Can you convert Zshell programs to ASM, so you can run these programs on
>> a TI-83.
>> There aren't many programs for ASM on the TI-83 right now.
>
>I have been trying to do this since I learned ASM on the 83 and there
>are a few obstacles that I have yet to overcome:
>
>1.) There is not that much source code out there for good ZShell games
>(Although the recent release of Plainjump and XC-1701 might be the
>answer, I have not had time to look at them yet)
>
>2.) Th TI-83 does not have a memory mapped LCD (as TI claims, it has a
>LCD controlled by the "LCD Driver", and that code to support "fast LCD
>access will be provided as part of the docs in the future" I have sent a
>few messages asking about this and other problems with their docs to
>their new address and have yet to recieve any reply)  This makes
>graphics intensive games almost impossible as the System Routines for
>drawing on the screen are too slow.
>
>3.) The time involved.
>
>Were these hurdles overcome, however, porting from ZShell to TI-83 would
>not be that difficult as the two are very similar.
>
>       -Andrew


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