First of all, I want to thank phoboz
for this effort. He is really moving this forward.
I had been in touch with phoboz
about this. I was going to finish another core before doing this one but after he has shown the impressive progress I am going to give priority to this. I will release the JT12
, a clone of the YM2612, in a few weeks so it can be used on the Megadrive
I have some YM2612 chips to take measurement but I do not have a board built for it. I will check out the information on that github that alexh
has shared because it claims to document some obscure features. Maybe they have chip measurements. In any case, the plan is to make a first JT12 release based on documentation and the measurements of the YM2151. That should give decent sound. Then, sometime in the future, properly take measurements and release an exact clone.
Note that with the YM2612 the output is analog and with DAC artifacts, which means I cannot take exact measurements of what is going inside the chip. That makes it very difficult to achieve the level of accuracy I got in the JT51. Nonetheless, the YM2203, which is also part of the OPN series, has digital output so I will take measurements of it in the future.
In short, I cannot stand seeing Ghouls'n Ghosts
on my MiST without listening to that wonderful melody of the second stage. We shall have sound!