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Re: SVN builds - new driver flood [Re: judge] #49506 04/21/09 05:26 AM
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Anna Wu Offline OP
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Originally Posted By judge
Originally Posted By judge
The neogeo pocket driver is not enabled yet (the main cpu core is not in subversion).


Have fun with the drivers smile They are enabled now.


Hello judge,

just tried SVN 4532. ROM check was passed. If I start the driver (with and without mounted cart), I get a white screen.

Re: SVN builds - new driver flood [Re: Anna Wu] #49508 04/21/09 05:56 AM
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judge Offline
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You have to power on the system: press Q.
I actually had to emulate the power button for this one shocked

Re: SVN builds - new driver flood [Re: Anna Wu] #49510 04/21/09 06:14 AM
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Anna Wu Offline OP
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Thanks for your advice. It works smile smile

Re: SVN builds - new driver flood [Re: Anna Wu] #49511 04/21/09 06:28 AM
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judge Offline
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At the moment you still have to enter the language and time details on every boot. On the real thing the cpu keeps running all the time at a very low frequency. The only way to do this in mess would be to play these drivers using savestates. I still have to finish the last couple of things to fully support savestates.

What already should work is boot the system, set details, power off and power on again. Between power off and power on it should be possible to change the mounted cartridge image. I haven't been able to test this fully yet though; it might be that there is some code in place which forces the emulated systems to restart when you change a mounted cartridge image.

Re: SVN builds - new driver flood [Re: Anna Wu] #49512 04/21/09 06:34 AM
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Anna Wu Offline OP
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I load the state after pressing Q.
Now i am waiting for the progress to start/play carts. smile

Last edited by Anna Wu; 04/21/09 06:36 AM.
Re: SVN builds - new driver flood [Re: Anna Wu] #49513 04/21/09 06:43 AM
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judge Offline
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You can already play the carts by just mounting them on boot.

Re: SVN builds - new driver flood [Re: Anna Wu] #49514 04/21/09 07:28 AM
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Anna Wu Offline OP
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Let me say, you make a great job judge !
The most games are running.

Re: SVN builds - new driver flood [Re: Anna Wu] #49628 04/26/09 03:36 PM
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enik Offline
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This has been posted at bug 1817, but the assigned address is "<nobody@mess.org>", so I decided to post also here to bring more attention:

Genesis/Mega Drive driver regressed when MAME 0.128u7 was merged in SVN revision 3958. Maybe related with the bug of MAME megatech driver reported at http://www.mametesters.org/mantis/view.php?id=2817.

Some games only boot after the "9" key is pressed to reset them (e.g. Gaiares), various games need "9" to play sound (e.g. Puyo Puyo, Devil Crash, Raiden Trad, Sonic games with Knuckles, voices of Mortal Kombat 2 and Moonwalker), various have horrible sound, seems like playing wrong data (like Shadow Dancer when start 1st stage, Golden Axe 2 or JuJu Densetsu when an enemy dies - voice related?).

SVN rev. 3957 seems ok.
SVN rev. 3958 is the 0.128u7 merge.
SVN rev. 3963 made some changes to genesis.c related to Pico driver.
SVN rev. 3964 fixed the drivers requiring cartridges, when a regression in src/mess/image.c file was fixed, and the problems are first reproduced here. Later I tested without the (Pico) changes of the previous commit and there was no difference.

I take a look at the 0.128u7 commit. The MAME and MESS files related to the Genesis driver seems only adapted to the new core changes.

What seems strange to a non MESS/MAME developer like me are tags apparently unused, like the following part of src/mess/drivers/genesis.c:

ROM_START(genesis)
ROM_REGION(0x1415000, "maincpu", ROMREGION_ERASEFF)
ROM_REGION( 0x10000, "soundcpu", ROMREGION_ERASEFF)
ROM_END

The only reference to "soundcpu" (via a memory_region() call) I found was in src/mame/drivers/genesis.c, at READ8_HANDLER (genesis_z80_bank_r) which is only referenced at a disabled (with #if 0 .. #endif) address mapping in the same file.

Re: SVN builds - new driver flood [Re: enik] #49632 04/26/09 04:25 PM
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I thought regression was due to the improvements to Yamaha sound core which had unexpected bad effects in MESS, for who knows what reason...

Re: SVN builds - new driver flood [Re: etabeta78] #49633 04/26/09 04:33 PM
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R. Belmont Online Content
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The regression has nothing to do with the YM2612 improvements, all of which were tested in MESS originally and based directly on tests run on actual MD/Genesis hardware. The regression is purely a result of the u7 changes.

Anyway, you can "bring attention to" it all you want - the code is Haze's to fix and for hopefully obvious reasons nobody else wishes to touch it.

PS: "soundcpu" and "maincpu" are the names of the Z80 and 68000. There is an implicit mapping.

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