barryharris.me.uk

I've got the UPD7759 chip pretty much emulated now. I started with the Master mode which got the missing sound in Prehistoric Isle going. I then added support to the tmnt driver which uses the chip in Master mode and now has working voices.

I then got to looking at the rather more complex slave mode used by Sega System 16B games. The good news is that I pretty much have it working. It needs tidying and improving but pretty much everything works so System 16B games now have full sound.

I've also used the MAME Z80 core I ported to get sound working in the MC8123 encrypted System 16 games too so System 16 sound should be complete in the next release. I've also got multiple CPU support working in the core so I've started adding the missing games to the Sega System 1 driver now that they can be decrypted successfully. Should hopefully have it all rolled up into a release this week.

5 Comments:

Posted by KOF2112 on 15 April 2008 at 20:05

good news Update Continue to support FBAdev the development of

Posted by barry on 15 April 2008 at 20:50

I forgot to mention that I also fixed an error in the Z80 memory map for System 16 and I now have the YM2151 sound working in Cotton too.

Posted by Lemonzest on 16 April 2008 at 13:37

Great i love cotten, used to have it on the NeoGeo Pocket Color, great game :)

Posted by Duck King on 17 April 2008 at 11:36

Excellent ! The ultimate update for Sega System16 !!! Thanks !

Posted by sealey on 19 April 2008 at 13:42

I am a Zombie and I have risen from my grave!

Rise from your grave...

5 Comments: