Final Fight CD hangs with 2.00 BIOS

[GoogleCodeExporter]

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?

What version of the emulator are you using (official, SVN revision,...)?

1.7.4
Please provide any additional information below (Emulator settings, Console
setting,...)
Progressive.

Original issue reported on code.google.com by ennah...@gmail.com on 24 Jun 2013 at 9:44

[GoogleCodeExporter]

Component cable.  I think jap version displays copyright before going blank.  
Might be pal version, I can't remember.  Then freezes after intro sound.  U.S. 
version fine

Original comment by ennah...@gmail.com on 24 Jun 2013 at 10:05

[GoogleCodeExporter]

have manage to test a bit now as was away from home when registering problem.

ok both jap and uk pal version display copyright screen (yellow text).

screen stays blank but intro sound continues.  controller unresponsive.  leds 
visable.
sticks on black screen after that with no sound.

setting pretty much default apart from progressive 60 hz.  have tested on 
others but the outcome is the same.

Original comment by ennah...@gmail.com on 24 Jun 2013 at 7:06

[GoogleCodeExporter]

Indeed, seems like any regions (USA, JAPAN & EUROPE) hangs when using model 2 
BIOS

More exactly:

US version works fine with 1.00, 1.10 and also 2.11 BIOS but not 2.00

PAL & JAP version works fine with 1.00 BIOS but not 2.00

PAL & US versions also works fine with CDX/Multimega BIOS (2.21)

It's probably some timing issue which make the game work by chance with some of 
the BIOS and not with others because timings are a little different between 
them, so I guess I will have to fix that (again!)

This is really starting to be annoying to test, fix something and something 
else got broken :-/

Original comment by ekeeke31@gmail.com on 24 Jun 2013 at 8:13

[GoogleCodeExporter]

Original comment by ekeeke31@gmail.com on 24 Jun 2013 at 8:14

• Changed title: _Final Fight CD hangs with 2.00 BIOS _
• Changed state: Accepted
• Added labels: Type-Defect, Priority-Medium, SCDEmulation

[GoogleCodeExporter]

sorry, first time and dont know what i should be telling you.

all my bios for pal, jap and us are version 2.00 but the us version seems to 
work.

maybe the us version crashes later in the game.  will find different bios later 
and test.

i never thought it maybe the bios, but as i said, i'm new to registering issues.

it may be annoying but you have my biggest respect for knowing half this stuff. 
 you make retro live on and nothing is cooler.

Original comment by ennah...@gmail.com on 24 Jun 2013 at 10:16

[GoogleCodeExporter]

2.11 BIOS displays as 2.00 on boot screen,so that is probably why you think you 
are using 2.00 but i verified US version definitively locks at the same spot as 
PAL and JAP version with the older model 2 US BIOS.

anyway, I fixed it already, a new revision should be up soon

For the record (and for those who are interested), it was caused by the "fix" 
to get Lunar - The Silver Star works again, which involved reverting some stuff 
regarding SEEK command required by Final Fight CD. The solution appeared to 
work with model 1 BIOS timings but not model 2. Analysing why Lunar was not 
working anymore instead of blindly reverting things permitted to find a proper 
solution that works fine for both games under any configuration.

Original comment by ekeeke31@gmail.com on 25 Jun 2013 at 6:09

[GoogleCodeExporter]

thanks

Original comment by ennah...@gmail.com on 26 Jun 2013 at 9:29

[GoogleCodeExporter]

fixed in r800

Original comment by ekeeke31@gmail.com on 26 Jun 2013 at 11:41

• Changed state: Verified