Yes, 777 Casino will clobber 68000 RAM if the copy protection check fails.
I'll take a closer look at this game's driver codeflow later today. Thanks for the help so far!
Search found 62 matches
- Tue Oct 04, 2011 1:24 pm
- Forum: Megadrive/Genesis
- Topic: Are we sure MD Z80 can't write to M68K RAM? NCS does it...
- Replies: 24
- Views: 20211
- Tue Oct 04, 2011 1:40 am
- Forum: Megadrive/Genesis
- Topic: Are we sure MD Z80 can't write to M68K RAM? NCS does it...
- Replies: 24
- Views: 20211
Are we sure MD Z80 can't write to M68K RAM? NCS does it...
I am helping GerbilSoft fix a bug I found in his semi-rewrite Gens/GS II: Mamono Hunter Youko halts during the level load. We looked a bit into it and determined that the Z80 sound driver appears to be writing to MC68000 RAM... but wasn't it determined that this wasn't allowed on all but the earlies...
- Sat Sep 03, 2011 5:37 pm
- Forum: SGDK
- Topic: Raster Effect with Gendev ( SGDK)
- Replies: 33
- Views: 32399
- Sat Aug 06, 2011 2:55 pm
- Forum: Sound
- Topic: YM2612 - VGM instrument ripping suggestions
- Replies: 6
- Views: 5318
- Thu Aug 04, 2011 4:25 pm
- Forum: Sound
- Topic: YM2612 - VGM instrument ripping suggestions
- Replies: 6
- Views: 5318
The most likely events are the TL getting changed with a mid-note volume change and the frequency changing if the sound driver is instructed not ot retrigger notes. Any register can be changed at any time... Have you tried running Shiru's VGM2TFI to rip voices? The TFI format is documented in the ol...
- Tue Jun 28, 2011 11:14 pm
- Forum: Blabla
- Topic: NeoGeo Programmers Guide
- Replies: 6
- Views: 5815
- Fri Jun 24, 2011 9:07 pm
- Forum: Tools
- Topic: VGM Music Maker
- Replies: 93
- Views: 76663
If the sample channel plays through the YM2612, you cannot have it and FM6 playing at the same time; one replaces the other. Nice to see these expansions put in; I'll be sure to try it later (sound didn't work in wine in the first release but I'll try the second one later, or just run it in Windows ...
- Wed Jun 22, 2011 2:22 am
- Forum: Megadrive/Genesis
- Topic: Initialization Problems
- Replies: 9
- Views: 8235
- Sun Jun 19, 2011 10:52 pm
- Forum: Megadrive/Genesis
- Topic: found a bug with Conquering the World III
- Replies: 12
- Views: 9020
Game-specific hacks are something that should be more readily documented... right now all I can think of is to look in an emulator's source code =P Eke is supposedly (I don't have a Wii so I can't find out for sure, so I'm only judging by the source code) doing a good job at supporting EVERYTHING so...
- Sun May 22, 2011 6:23 am
- Forum: Sound
- Topic: Okay... how DO you make OPN voices?
- Replies: 4
- Views: 4732
- Tue May 17, 2011 4:39 am
- Forum: Sound
- Topic: Okay... how DO you make OPN voices?
- Replies: 4
- Views: 4732
Okay... how DO you make OPN voices?
This is something I don't quite get. I know we have ample documentation on how the YM2612 works, and I have a basic understanding of how FM synthesis works, but I don't understand how one creates a OPN voice based around a specific waveform... Is there some guide or some old document used by MD/PC-8...
- Thu Apr 28, 2011 10:12 pm
- Forum: Megadrive/Genesis
- Topic: Megamix Disassembly
- Replies: 5
- Views: 6172
- Tue Apr 12, 2011 12:42 am
- Forum: Megadrive/Genesis
- Topic: I'm a noob--is this possible?
- Replies: 10
- Views: 6073
- Sat Mar 19, 2011 1:20 pm
- Forum: Tools
- Topic: Disassembly
- Replies: 12
- Views: 12330
MUSHA Aleste does this: jsr NemDec dc.w VRAMAddr dc.l OffsetToArt ; next instruction here I hope your analyzers and what not can handle that =P The only real pitfall I can see in converting 68000 to C is that most games were written in 68000 assembly, not C — and those that were written in C don't f...
- Fri Dec 17, 2010 8:10 pm
- Forum: Controls
- Topic: Games database with search by peripherical
- Replies: 4
- Views: 9476
I don't know the particular website you have in mind, but Sega of Japan's archive does have peripheral markers for first party and third party games published in Japan, so that might knock quite a bit out...