Megadrive 1/2 mode switch

[jotego]

Hi,

The Megadrive model 1 used the YM2612 but the model 2 used YM3438. It looks like one audible difference was the lack of volume limiter in the accumulator unit of YM3438, according to the application notes.

I have implemented an YM3438 mode into JT12. I need one OSD switch to select Megadrive model. The difference is extremely noticeable in the "ring" sound of Sonic.

Thank you,
Pepe

[robinsonb5]

Done - the dipswitches signal is now 16 bits wide rather than 12. Bit 5 is mapped to the model 2 select (which is now a menu item). Since this is so closely related to the channel mute idea, I've done that too, and bits 6-12 are now toggled by keys 1 - 7 (above qwerty, not keypad).

[jotego]

Thank you! El El dom, 5 mar 2017 a las 15:42, robinsonb5 <notifications@github.com> escribió:

…

Done - the dipswitches signal is now 16 bits wide rather than 12. Bit 5 is mapped to the model 2 select (which is now a menu item). Since this is so closely related to the channel mute idea, I've done that too, and bits 6-12 are now toggled by keys 1 - 7 (above qwerty, not keypad). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#12 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABxtfP7iBPgSp9LcrO6Qofs36gyeVm_vks5risnGgaJpZM4MTX9i> .