AtGames Sound Fix, Within Your Own Hack!

You may recall that the AtGames Firecore Consoles have some really bad PSG and FM pitches. I, with some help from Big Evil Corporation's blog post, Taming The Firecore Part 1, have made some code to fix the sound on AtGames consoles, without having to use Neto's Bootloader or Neto MS-DOS.

I'll update this when I figure out how to detect a Firecore.

The Code:
In The label Where Your Sound Driver is loaded, add:

Code:

    move.w #$FFFF, $00000000    ; Latch 0x0000
    move.b #$78,   $00B00018    ; Write new PSG frequency
    move.b #$26,   $00B01054    ; Write new FM frequency
    move.b #$20,   $00B01055    ; Write new FM clock
    move.w #$FFF7, $00000000    ; Un-latch

Label Names:

Sonic 1 AS (GitHub, 2023):
DACDriverLoad or SoundDriverLoad (Old Label)
Sonic 2 (GitHub, 2023):
SoundDriverLoad
Sonic 3&K (GitHub, 2023):
SndDrvInit

 

Here, courtesy of BigEvilCorporation himself from the Tanglewood source code.