> Sent: Thursday, August 20, 2009 4:20 PM
> Cc: Aaron Giles
> Subject: Re: Brap Boys progress
>
> Last one for tonight. I'm sending these because I have no idea when
> the
> next source update will be and I'd prefer it to be as up to date as
> possible so that this info can't be lost.
>
> We're almost half way there as far as decrypting brapboysj tables is
> concerned, however, we still need to better understand how the
> protection device uses them.
>
> These all apply against a clean SVN, not the previous patches I sent.
>
> David Haywood wrote:
> > more progress in decrypting the tables.
> >
> > David Haywood wrote:
> >> current progress, 2 extra tables decrypted.
> >>
> >>
> >> David Haywood wrote:
> >>> Further work on the decrypting of tables from the ROM. Added a
> >>> status table of the data I've decrypted, data I have to study etc.
> >>>
> >>> David Haywood wrote:
> >>>> Missed an 'else' sorry, wasn't decoding the table correctly.
> >>>>
> >>>> David Haywood wrote:
> >>>>> here's another which will decrypt table 0x19 for brapboys. (use
> >>>>> this instead of previous)
> >>>>>
> >>>>> I guess I need to understand something else like where it REALLY
> >>>>> writes the table data, or some other maths related ops, because
> it
> >>>>> just does a trap #0 to an infinite loop and then watchdog resets
> >>>>> now without requesting any more tables than the ones I've
> >>>>> decrypted. I'll work on decrypting the rest of them tho, as we
> >>>>> have a trojan that can supply whatever tables we request, however
> >>>>> understanding how to use them is becoming more important.
> >>>>>
> >>>>> David Haywood wrote:
> >>>>>> this decrypts table 11 (ugly ... but correct compared to the
> >>>>>> extracted data which is included for verification at this point)
> >>>>>>
> >>>>>> I may send newer versions as more tables are decrypted,
> depending
> >>>>>> on progress. This is so that nothing gets lost, and can be
> >>>>>> included.
Changed to mono both Downtown and Caliber 50: these pcbs don't have a
stereo connector.
Regarding the conversion to mono, I would like to know if it's good to
lower the output of the channels to 0.50 if each channel was previously
1.0 in stereo.
[Corrado Tomaselli]
> model sy6845.
> I tested it under my MESS z80ne driver.
> I don't know any other system using transparent access mode.
>
> src/emu/video/mc6845.c
>
>
> Best Regards
> Roberto Lavarone
- Use new dump for ic31/32, ROM board test passes now
- Add protection hookup for Marvel vs. Capcom 2, game is playable w/sound
I'm not removing GAME_NOT_WORKING because I don't trust the Naomi emulation
in general that much yet, although I was able to coin up and play (slowly ;-)
Dump is uploading.
------------------------------------
Dirt Dash (Rev. DT2) [Guru]
Olivier, this one's all yours. It pretty much nukes the existing video h/w
emulation but maybe you'll have better luck with it on your rewrite.
New Clone Added
----------------------------------------
Saulabi Spirits / Jin Saulabi Tu Hon (Korean release of Samurai Shodown II) [Guru / David Haywood]
>
> Currently MESS supports single system cheat xmls
>
> eg ALL cheats for any SNES game must be in snes.xml, this means that
> there will be a lot of cheats
> that are not applicable to the game being played.
>
> This change reverts MESS to a close approximation of how it used to
> handle cheats. It will get the
> crc32 of the image and load only the appropriate cheats to go with that
> image/game by loading
> crc32.xml (eg. DEADBEEF.xml).
>
>
> These changes are within ifdef MESS structures so should have no
> affect on MAME, and my testing has
> not encountered any problems.
>
> Diff File attached
Sent: Thursday, August 13, 2009 12:22 PM
To: Aaron Giles
Subject: Re: Fw: Triple draw poker!
adding this fixes the colours.
Klaus Sommer wrote:
> Attached is the bprom from "Triple Draw Poker"
>
> Klaus
- added cycle tables and cleaned up source layout. This was done very carefully, it should be errorfree.
- removed HLT cycle eating (earlier, HLT after EI could theoretically fail)
- fixed parity flag on add/sub/cmp. Bug was caused by z80 overflow detection accidentally left in
- renamed temp register XX to official name WZ
- renamed flags from Z80 style S Z Y H X V N C to S Z X5 H X3 P V C, and fixed X5 / V flags where accidentally broken due to flag names confusion
- Fixed X/Y flags in CCF/SCF/BIT, ZEXALL is happy now
- Simplified DAA, renamed MEMPTR (3.8) to WZ (same temp register as the officially named WZ in the 8080), added TODO
the cycle fix by Marshmellow, in the 3.9 z80.c comments was already committed in june, just added there for documentation
integers. This is defined to be "I64" on MSVC and recent mingw compilers,
and "ll" for all others.
Updated all instances of 64-bit prints to use the new macro.
Fixed visible area on logic pro and logic pro 2 to match real PCBs.
Add comment about what ym3812 clone is used.
Add note about missing graphical effect in logic pro (screen dim on coin insert) and marked as IMPERFECT_GRAPHICS.
Add note about 4 pixels at left edge of screen.
[Charles Macdonald, Lord Nightmare]
- Added Rabbit Poker / Arizona Poker? set (with GAL22V10 and PIC16F84A).
- Added proper decryption algorithms.
- Updated technical notes.
New games marked as GAME_NOT_WORKING
------------------------------------
Rabbit Poker (Arizona Poker v1.1?) [Roberto Fresca, Andreas Naive, Tomasz Slanina]
- Put some life into RCDISC5 enable mode. This now acts as a switch between R and C. Capacitor voltage will be preserved if disabled.
- Made galaxian use the above. Saved 2 nodes and increased accuracy.
- Added DISC_LFSR_FLAG_OUTPUT_SR_SN1 flag to shift register noise generator. This will output the value of the shift register to sub-node 1. This is needed for future bzone discrete sound emulation. BTW: RCDISC5 will be used as well.
- Left a note on RCDISC3 on what is needed to be implemented for bzone.
- Optimized the LFSR a bit. LFSRs running at high frequency (> sample_freq) should benefit.
Colorama is a standalone game driven for 1x VGA board plus a mechanical arm.
Roulette is just the bet station, since the phisical wheel has its own controller. Each roulette has 10/15 stations.
New games marked as GAME_NOT_WORKING
------------------------------------
Colorama (english) [Roberto Fresca, Angelo Salese]
Roulette V75 (spanish) [Roberto Fresca, Angelo Salese]
