----- Original Message -----
From: Christopher Tumber <christophertumber@xxxxxxxxxx>
To: <stella@xxxxxxxxxxx>
Sent: Saturday, October 19, 2002 10:27 PM
Subject: RE: [stella] Space Instigators - Final Version (?)
> Did you disassemble and go through it? Yikes! (but thanks!) if the source
code would be helpfull just let me know. I do plan to post it eventually but
at the moment it's basically uncommented (except where I wanted to remind
myself what the hell I'm doing...). However, if you're going to be going
through it anyway, the label names and formatting may make things a little
easier to read.
I didn´t really disassembled it, just used the PCAE debugger (a great
debugging tool, by the way) to figure out why the screen wasn´t stable, I
didn´t even tried to understand what the code was doing. You should give it
a try, it´s very useful for game developers.
> Unfortunately I've been tinkering a little so things have move a bit -
enough anyway that I can't identify which WSYNC (There are a few...(smile)).
Can you tell me the lines directly preceeding or following that STA WYSYNC
you've mentioned above? Maybe I can add a NOP or two to the odd frames....
Sure, I´ve used the latest bin. Here´s the Z26 log... a great logging
tool, by the way ;-)
f527: e6 9a inc 9a
f529: a9 04 lda #04
f52b: 85 c7 sta c7
f52d: a9 01 lda #01
f52f: 85 ca sta ca
f531: a9 00 lda #00
f533: 85 02 sta WSYNC ; THIS IS THE PROBLEMATIC WSYNC.
f535: 85 2b sta HMCLR
f537: 85 04 sta NUSIZ0
f539: 85 05 sta NUSIZ1
f53b: 85 1f sta ENABL
f53d: 85 82 sta 82
f53f: 85 ff sta ff
f541: a9 0c lda #0c
f543: 85 06 sta COLUP0
f545: 85 07 sta COLUP1
f547: a5 c7 lda c7
f549: 0a asl a
f54a: aa tax
> [Just grabbed PCAE-DOS but can't seem to get it to run on my system
(WIN-ME)]
Have you tried to disable the sound before running the bin? Maybe that will
fix it.
> Maybe PCAE DOS more closely resembles the 7800? (Strange that Pcaewin
doesn't show this behaviour though...)
Looks like a bug to me. Probably it´s fixed in the version you´re using.
Bye,
Nicolás.
----------------------------------------------------------------------------------------------
Archives (includes files) at http://www.biglist.com/lists/stella/archives/
Unsub & more at http://www.biglist.com/lists/stella/
