[atari7800] Re: Mode 160B don't works for me...
- From: Manuel Rotschkar <cybergoth@xxxxxxxx>
- To: atari7800@xxxxxxxxxxxxx
- Date: Mon, 01 Nov 2004 12:28:19 +0100
Hi there!
You can download the 7800 BIOS from my web site:
http://www.atari7800.org/emulation.htm.
The old one had a couple of wrong bytes at the end; it didn't seem to
affect
any games, only the diagnostic cartridge.
Thanks!
Meanwhile I found a lot of bugs in my data conversion tool, so that's
mostly where my problems came from. For example when doing the 3276 and
1054 swaps, I ended up with the wrong MSB/LSB order, thus 0001 for example
was read as 0100 and so rendered transparent... ;-)
Last problem I think I have is that a bitmap stores it's data line by line
(complete scanlines), while I think on the 7800 side I need to have the
data organized per zone...
(There goes another day struggling with C rather than doing some fun
assembly things... ;-))
Hm... just another small question, is the data in a zone organized like
this:
012
345
678
or this:
036
147
358
For the moment I'll assume the first, since after all the whole system is
scanline based, or? ;-)
Greetings,
Manuel
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