Closed GoogleCodeExporter closed 8 years ago
I do not see or hear anything wrong (Wii standalone port based on current SVN).
Can you post some screenshots which show the graphical glitches or be more
descriptive about what you see /hear ? I am also not sure what intro you are
exactly talking about, I just got a logo followed by title screen then the
first level.
Also you might want to check the ROM you are using is not a bad dump.
Original comment by ekeeke31@gmail.com
on 27 Jan 2014 at 9:45
Ok, here are some screenshots of what I am talking about:
http://imgur.com/yaL0PaH,jVgyQGN#1
Everything is fine in the first screenshot, but if you run around the stage for
a bit, the ground and the top of the truck show the glitches seen in the second
shot. The enemy sprites also flicker like crazy, but it was hard to capture
this in a screenshot. I haven't played past this point to see if any other
glitches happen.
The intro I am referring to occurs right after the Sega logo and the legal
info screen. Music starts playing as it shows the T2 title screen. This is
where the music is garbled; it sounds like static. It remains staticy as it
transitions into the story scenes. The music in the first stage is fine,
though. I tested 2 versions of the rom, including one from the NoIntro set, in
both Fusion and TwoMBit, and they worked fine. Perhaps this is a libretro issue.
Original comment by ymhn9...@gmail.com
on 28 Jan 2014 at 5:48
Ok, we were not talking about the same game. I will have a look at this one
when i got some time.
Original comment by ekeeke31@gmail.com
on 28 Jan 2014 at 7:48
Original comment by ekeeke31@gmail.com
on 28 Jan 2014 at 11:52
It seems like it somehow got broken between 1.6.0 (SVN r633) and 1.7.0 (SVN
r683)
If you got some time and know how to compile from SVN, you can help me trying
to figure what caused these bugs by testing revisions between those two and
tell me which one started to exhibit those problems (note that sound and
graphic glitches could be separated issues and could have been introduced at
different points, i am not sure).
No need to test all revisions, only those containing changes related to the
core (Wiki updates or platform port specific changes can be ignored)
Original comment by ekeeke31@gmail.com
on 29 Jan 2014 at 9:33
Ok, I'll see what I can do to help.
Original comment by ymhn9...@gmail.com
on 30 Jan 2014 at 8:22
Well, don't bother, I figured this one, it will be fixed in an upcoming commit.
For personal record:
It's actually caused by a bug in the game. The program enables raster line
interrupts but never initializes VDP register 10 which normally sets the
interrupt interval, so the interrupt occurs every line (this register is
resetted to zero on power-on) which makes the game go in panic mode (sound and
graphics issues).
It could be that this register is set to $FF on a real Game Gear at power-on,
which actually makes the line interrupts never occuring (and fixes soudn &
graphic issues on that game) but without any hardware to test on, it's only a
guess.
Original comment by ekeeke31@gmail.com
on 30 Jan 2014 at 1:23
fixed in r852
Original comment by ekeeke31@gmail.com
on 2 Mar 2014 at 3:47
Original issue reported on code.google.com by
ymhn9...@gmail.com
on 26 Jan 2014 at 11:52