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notaz / picodrive

Fast MegaDrive/MegaCD/32X emulator
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Sega Pico Support? #38

Open ghost opened 8 years ago

ghost commented 8 years ago

hi, i see that Sega Pico roms load fine, but no controllers? do you have any suggestions.

i'm running the latest via RetroPie, on a Raspberry Pi 2

thank you

notaz commented 8 years ago

Some ports do support pico input. I don't know how RetroPie is interfacing PD, over libretro API I guess?

paradadf commented 5 years ago

Hello, I just noticed this issue "upstream". Mentioning here the one I opened last week in libretro's fork. https://github.com/libretro/picodrive/issues/101

iequalshane commented 4 years ago

I see your Pico PCM implementation isn't the NEC UPD7759 like many people theorized. Was determined it wasn't an ASIC around the 7759? I'm currently attempting to implement the 315-5641 on an FPGA, so I'm curious what additional findings you had here.

notaz commented 4 years ago

IIRC (It's more that 10 years already) it was done before it was known what kind of chip was, so it's basically guesswork to get any sound at all. It's not a good place to look if you seek accuracy.

iequalshane commented 4 years ago

Thank you for the clarification. It's still quite impressive it works as well as it does with guesswork :)