gbdk-music

Music library for gbdk-n with demo music player.

Build

Dependencies:

• sdcc must be installed
• gbdk-n must be cloned in dev/

Get ready:

#pacman -S vbam-sdl sdcc
cd dev
git clone https://github.com/andreasjhkarlsson/gbdk-n
cd gbdk-n
make
cd ../../

Build music:

make

Play

Dependencies:

• vbam or another emulator must be installed

Build and play music:

make playmusic

How

I tried to make the notation tracker-like.

const Song_frame song[] just defines which patterns are played when. Each pattern consists of multiple Pattern_frames

pulse_note and wave_note have values like 0x20 | note_d. This is the note D on the second octave. 0xFF is a NOP

pulse_vi, wave_vi and noise_vi have values like 0xD6. The left number is the volume and the right number is the instrument. 0x?F keeps the instrument untouched.

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An example song can be found at music/the_journey_begins.c

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The first pulse wave generator does not get used, so it can be used for sound effects.