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Haze
Reged: 09/23/03
Posts: 4250
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Re: Gaelco WIP
07/13/17 08:27 PM


> What Charles was able to do to get Gaelco Master Boy emulated in 2006 was amazing
> itself and fortunately that game didn't have the MCU protection hardware.
>
> Master Boy does use a MCU, though a conventional EPROM-based type. In fact, it's the
> same type of MCU (HD647180X) that Toaplan used as a sound processor in their
> early-'90s games, none of which had sound in MAME until 0.181 (and there are a few
> that still haven't been dumped).

yeah, the difference was Gaelco used it with an external data rom and there were weak functions in the internal rom (not checking string bounds etc.) that allowed Charles to get code running on it.

the Toaplan games took much longer because they don't use any external ROM at all so there was no way to try and exploit them, in the end it took the decapping.







Entire thread
Subject Posted by Posted on
* Gaelco WIP SmitdoggAdministrator 07/11/17 11:58 PM
. * How-to guide SmitdoggAdministrator  07/16/17 11:34 PM
. * Re: How-to guide gregf  07/17/17 04:22 AM
. * Re: How-to guide nikolas1960  07/17/17 12:24 PM
. * Re: How-to guide SmitdoggAdministrator  07/17/17 06:16 AM
. * Re: How-to guide gregf  07/17/17 11:45 AM
. * Re: How-to guide SmitdoggAdministrator  07/17/17 07:40 PM
. * Re: How-to guide Master O  07/17/17 05:08 AM
. * Re: How-to guide Master O  07/17/17 01:02 AM
. * Re: Gaelco WIP anchounio  07/13/17 01:49 PM
. * Re: Gaelco WIP Haze  07/13/17 02:19 PM
. * Re: Gaelco WIP Darksoft  07/12/17 05:44 PM
. * Re: Gaelco WIP agard  07/13/17 03:05 PM
. * Re: Gaelco WIP Haze  07/12/17 11:28 PM
. * Re: Gaelco WIP Darksoft  07/13/17 03:31 PM
. * Re: Gaelco WIP Haze  07/13/17 03:36 PM
. * Re: Gaelco WIP Darksoft  07/13/17 04:09 PM
. * Re: Gaelco WIP nikolas1960  07/12/17 09:05 PM
. * Re: Gaelco WIP R. Belmont  07/12/17 05:49 PM
. * Re: Gaelco WIP Darksoft  07/12/17 08:26 PM
. * Re: Gaelco WIP gregf  07/12/17 07:12 PM
. * Re: Gaelco WIP AJR Hacker  07/13/17 08:25 PM
. * Re: Gaelco WIP gregf  07/13/17 09:47 PM
. * Re: Gaelco WIP Haze  07/13/17 08:27 PM
. * Re: Gaelco WIP CTOJAH  07/12/17 03:46 PM
. * Re: Gaelco WIP gamez fan  07/12/17 02:23 PM
. * Re: Gaelco WIP DrZer0  07/12/17 10:28 AM
. * Re: Gaelco WIP nikolas1960  07/12/17 12:13 PM
. * Re: Gaelco WIP Roberto Fresca  07/18/17 04:03 AM
. * Re: Gaelco WIP nikolas1960  07/18/17 10:26 AM
. * Re: Gaelco WIP MooglyGuy  07/12/17 03:09 PM
. * Re: Gaelco WIP Haze  07/12/17 12:23 PM
. * Re: Gaelco WIP nikolas1960  07/12/17 12:40 PM
. * Re: Gaelco WIP Haze  07/12/17 01:03 PM
. * Re: Gaelco WIP nikolas1960  07/12/17 02:20 PM
. * Re: Gaelco WIP pepinos  07/12/17 02:38 AM
. * Re: Gaelco WIP nikolas1960  07/12/17 12:19 PM
. * Re: Gaelco WIP SmitdoggAdministrator  07/12/17 02:46 AM
. * Re: Gaelco WIP nikolas1960  07/12/17 12:44 PM

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