Family Trainer 3: Aerobics Studio
I've been trying to figure out the M50805 chip and how it works. So far I don't believe there are any documents online that describe its functions. I've attempted to search for patents, contact Mitsubishi, and get a hold of the warehouse that they referred me to without any luck of finding datasheets. So, I've debugged the ROM and found out a few things:
$6000
xSxx xPPP
P = Play sample number.
S = Stop sample.
I believe there are a maximum of 8 samples. I've made it through all of the modes and realize that the max sample value before it is DEY'd is $08 (which is #$07). Also at init #$FF is written to $6000. I'm not sure of its function.
Does anyone have this cart and a CopyNES to verify? Is M50805 a mask ROM?
Also I believe since there is additional audio hardware that CNROM does not entirely suffice for Family Trainer 3's mapper. It should be assigned another and hopefully the M50805 can be dumped or decapped if necessary.
I've been trying to figure out the M50805 chip and how it works. So far I don't believe there are any documents online that describe its functions. I've attempted to search for patents, contact Mitsubishi, and get a hold of the warehouse that they referred me to without any luck of finding datasheets. So, I've debugged the ROM and found out a few things:
$6000
xSxx xPPP
P = Play sample number.
S = Stop sample.
I believe there are a maximum of 8 samples. I've made it through all of the modes and realize that the max sample value before it is DEY'd is $08 (which is #$07). Also at init #$FF is written to $6000. I'm not sure of its function.
Does anyone have this cart and a CopyNES to verify? Is M50805 a mask ROM?
Also I believe since there is additional audio hardware that CNROM does not entirely suffice for Family Trainer 3's mapper. It should be assigned another and hopefully the M50805 can be dumped or decapped if necessary.