MegaPCM for the Github Disassembly

19/01/2025 Edit: DO NOT USE THIS, This version of MegaPCM is outdated and this guide was made when I didn't know almost nothing about romhacking (neither about english), follow this other guide to install MegaPCM2, a new version with support for the Github AS disassembly and a lot of other cool stuff.
Just in case that someone needs this for an old ASM68K hack or just wants to reinstall MegaPCM 1, I'm leaving the original guide here:

(Credits to Dewmer Dewar for Port the driver for the github disassembly and vladikcomper for the driver)

Hi, i was talking a days ago with a member of my team (Dewmer Dewar) and he told me that he had created a version of MEGAPCM for github disassembly
Tutorial for put MegaPCM in the GitHub Disassembly
Step 1- Replace your s1.sounddriver.asm with the file that I upload in the
MegaPCM GitHub Disassembly Files.zip
Step 2- Open your sonic.asm and search for SoundDriverLoad:

Replace this

Code:

SoundDriverLoad:
        nop
        stopZ80
        resetZ80
        lea    (Kos_Z80).l,a0    ; load sound driver
        lea    (z80_ram).l,a1    ; target Z80 RAM
        bsr.w    KosDec        ; decompress
        resetZ80a
        nop
        nop
        nop
        nop
        resetZ80
        startZ80
        rts
; End of function SoundDriverLoad

with this

Code:

SoundDriverLoad:            ; XREF: GameClrRAM; TitleScreen
        nop
        move.w    #$100,d0
        move.w    d0,($A11100).l
        move.w    d0,($A11200).l
        lea    (MegaPCM).l,a0
        lea    ($A00000).l,a1
        move.w    #(MegaPCM_End-MegaPCM)-1,d1

    @Load:    move.b    (a0)+,(a1)+
        dbf    d1,@Load
        moveq    #0,d1
        move.w    d1,($A11200).l
        nop
        nop
        nop
        nop
        move.w    d0,($A11200).l
        move.w    d1,($A11100).l
        rts
; End of function SoundDriverLoad

Last Step-Extract the MegaPCM_v11_Bin_1.7z and put it in the disassembly
Build and Run

And that's it! you already have MegaPCM in your hack

(Yes, i talk with dewar and he gave me authorization to upload this guide)
(Credits to Dewmer Dewar for Port the driver for the github disassembly and vladikcomper for the driver)
Edited: added Code Boxes

 

Thanks for this tutorial, anyway can you insert code boxes, for better code copying-pasting please?

 

Soon,or soon post the disassembly with the code already in

 

Quick bug report: The timpani sound plays at the Sega screen, rather than the intended choir. What's up with that? The build was successful, but the Sega chant not playing is a cause for concern.

 

I dont know... if nothing happens I will publish a solution soon

 

The MegaPCM_v11 7zip link is broken, here's a better upload

 

It seems someone has forgotten to make a AS GitHub version.