Haze's MAME WIP  Subscribe this feedRecent Articles :07/09/2015 Twin GP04/09/2015 Sybubblun in MAME13/08/2015 Legendary Update10/08/2015 Additive Kombat08/08/2015 Prototype MinionsLast Article :[07/09/2015 16:25] Twin GPWhen I correctly hooked up the dual stack PCB setups for Air Rescue and F1 Exhaust Note it was pointed out to me that GP Rider on the X-Board platform used a similar setup – a bridge board with shared RAM mapped directly into the address space of the main CPUs on each stack rather than a network.
In order to support this the driver (and several components used by the driver) required a little work in order to allow for multiple instances of the PCB stack to run under MAME at the same time.
I did this work, but the game still didn’t work correctly (the game would desync and break shortly after coining up), at that point I passed it on to SailorSat to look at and she observed that the RAM was actually banked, and once she hooked that up it started working as expected.
There’s no new fancy double screen attract graphics in this like Air Rescue and F1 Exhaust Note have, but there are a few things you won’t see unless you’re running the Twin setup either way.  Note, I believe the Twin setup is the only official Sega configuration for this game, and while it can run with a single PCB stack that isn’t how it was designed to run.
Kale's MAME WIP  Subscribe this feedRecent Articles :01/07/2015 Save the fail-to-escape people26/03/2015 A Message by the Sponsor25/03/2015 Halt Catch and Fire07/09/2014 Deluxe Co-Processor16/04/2014 Stalling till infinity …Last Article :[01/07/2015 01:48] Save the fail-to-escape peopleRecent improvements by Olivier Galibert and me regarding Top Landing / Air Inferno. Former can be considered working by now, latter is almost there.
Robiza's MAME WIP  Subscribe this feedRecent Articles :22/01/2011 Fixeight e i suoi cloni20/01/2011 E Kbash19/01/2011 Dogyuun e Vfive18/01/2011 Toaplan 2: cpu sonora11/09/2010 SSVLast Article :[22/01/2011 16:53] Fixeight e i suoi cloniHa richiesto molto piu’ lavoro sia in fase di decrittazione per la presenza di opcode senza riferimenti negli altri giochi (kbash, dogyuun, vfife e batsugun) sia per la presenza di una EEPROM.
Alla fine, grazie al lavoro congiunto di me stesso, Haze a AWJ, siamo riusciti a implementare il sonoro. La conseguenza per ora è stata la necessità di creare un clone del gioco per ogni paese supportato (sono 14). Questo perche’ la EEPROM per ogni gioco è differente e pur essendo generabile dal codice del gioco, non è possibile attivare quel codice senza fare saldature nella PCB (questo per l’assenza di DSWs e Jumpers).
Nel caso in cui tramite i valori presenti nella EEPROM sia possibile variare altri parametri del gioco oltre al paese, tale implementazione è scorretta. Ci sarebbero nel caso due alternative: aggiungere dump di EEPROM di cui si ha la certezza della relativa presenza in sala giochi, o implementare