mezz-estate-neogeo-audio-driver's Introduction

Mezz'Estate Neogeo Audio Driver

An audio driver for the NeoGeo MVS and AES written in assembly.
Check the wiki for further information

Compilation dependencies

This specific ZASM fork (You'll have to compile it yourself, there's no actual executables)
RomWak
Python 3.9.7+ (Might work with other versions higher than 3.0.0, not tested)
adpcma (Just for converting the test's program's samples)
ngdevkit (Just for compiling the test software)
Mame (Can be any emulator, but this repo has neat stuff for Mame SDL)
NeoSdConv (Just for exporting to TerraOnion's flashcart)

Z80 memory map

Address space	Description	Usage
$0000 ~ $5FFF	Static main code bank	Code
$6000 ~ $7FFF	Static main code bank	MLM header and song data
$8000 ~ $F7FF	Switchable banks	Song data
$F800 ~ $FFFF	Work RAM	Work RAM

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mezz-estate-neogeo-audio-driver's Issues

Support for PORTA_TO_NOTE effect

Fade in/out doesn't seem to be functional

When trying to fade in a track as per example, the music actually stays muted.

This is likely because of fade in/outs being muted in this commit.

Will support for ADPCM-B be added?

Support for ADPCMB would be really useful for pitched samples. That way, a composer or developer can use 8 samples (one per octave)
and then change the playback speed to alter the pitch, instead of having one ADPCM-A sample for each note.
Also, the ADPCM-B auto-loop might be useful for longer, extended notes.
Deflemask support for ADPCMB would be great.

I realize this might not be an issue/bug, but there is not a suggestions category for this repo.

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