+PCM soundboard for Pleasure Hearts

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Van Takamichi

Master (209)

afbeelding van Takamichi

05-08-2019, 11:03

Van Takamichi

Master (209)

afbeelding van Takamichi

04-09-2019, 17:41

Update. The repair tech managed to suck the data from the +PCM SX18AC microcontroller chip, but rewriting it into another SX18 chip then mounting the second chip on the original +PCM does not work; +PCM doesn't generate sound. So the data might be corrupt.
The sucked data is here. Push the down arrow to download. I at this moment don't know how to "disassemble" this microcontroller data back to understandable code, though searching with "SX18 disassembler" returns several results.

Van Takamichi

Master (209)

afbeelding van Takamichi

06-09-2019, 18:04

I've disassembled the sucked data with Angelica and uploaded it here. Isn't there anyone who understands this microcontroller code? The PCB of the +PCM is shown here. Please, this is the only way we can know how the PCM data is handled by Pleasure Hearts.
You guys have emulated so many things. Can you emulate and support it on OpenMSX?

Van Manuel

Ascended (15621)

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06-09-2019, 22:18

Manuel wrote:

If it becomes clear how this thing works from software point of view, I am willing to try to emulate it in openMSX.

That Smile I need an exact description on what the software does to control it and what the effect of these actions are. Yes, in all details... And in advance I have to say I'm sorry I'm not going to do this reverse engineering myself, but I think you guys already got pretty far.

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