Subject: RE: [stella] Space Instigators - Final Version (?) From: Nicolás Olhaberry <nolh@xxxxxxxxxxxxx> Date: Sun, 20 Oct 2002 07:13:37 -0300 |
----- 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/
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