mirror of
https://github.com/tildearrow/furnace.git
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150 lines
3.2 KiB
Markdown
150 lines
3.2 KiB
Markdown
# Furnace
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this is a work-in-progress chiptune tracker compatible with DefleMask modules (.dmf).
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## features
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- supports the following systems:
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- Sega Genesis
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- Sega Master System
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- Game Boy
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- PC Engine
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- NES
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- Commodore 64
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- Yamaha YM2151 (plus PCM)
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- Neo Geo
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- AY-3-8910 (ZX Spectrum, Atari ST, etc.)
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- Microchip AY8930
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- Philips SAA1099
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- Amiga
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- TIA (Atari 2600/7800)
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- multiple sound chips in a single song!
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- clean-room design (zero reverse-engineered code and zero decompilation; using official DMF specs, guesswork and ABX tests only)
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- bug/quirk implementation for increased playback accuracy
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- accurate emulation cores whether possible (Nuked, MAME, SameBoy, Mednafen PCE, puNES, reSID, Stella and ymfm)
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- additional features on top:
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- SSG envelopes in Neo Geo
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- full duty/cutoff range in C64
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- ability to change tempo mid-song with `Cxxx` effect (`xxx` between `000` and `3fff`)
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- open-source. GPLv2.
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## downloads
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check out the Releases page. available for Windows, macOS and Linux (AppImage).
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## help
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check out the [documentation](papers/doc/README.md). it's mostly incomplete, but has details on effects.
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# developer info
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## dependencies
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- CMake
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- SDL2
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- zlib
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- JACK (optional)
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SDL2 and zlib are included as submodules.
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## compilation
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your typical CMake project. clone (including submodules) and:
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### Windows using MSVC
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**no longer tested!** as of now tildearrow uses MinGW for Windows builds...
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from the developer tools command prompt:
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```
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mkdir build
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cd build
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cmake ..
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msbuild ALL_BUILD.vcxproj
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```
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### macOS and Linux
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```
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mkdir build
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cd build
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cmake ..
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make
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```
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## usage
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```
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./furnace
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```
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this opens the program.
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```
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./furnace -console <file>
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```
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this will play a compatible file.
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```
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./furnace -console -view commands <file>
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```
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this will play a compatible file and enable the commands view.
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```
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./furnace -output audio.wav <file>
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```
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this will render a file to .wav.
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# notes
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> how do I use Neo Geo SSG envelopes?
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the following effects are provided:
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- `22xy`: set envelope mode.
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- `x` sets the envelope shape, which may be one of the following:
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- `0: \___` decay
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- `4: /___` attack once
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- `8: \\\\` saw
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- `9: \___` decay
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- `A: \/\/` inverse obelisco
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- `B: \¯¯¯` decay once
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- `C: ////` inverse saw
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- `D: /¯¯¯` attack
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- `E: /\/\` obelisco
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- `F: /___` attack once
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- if `y` is 1 then the envelope will affect this channel.
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- `23xx`: set envelope period low byte.
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- `24xx`: set envelope period high byte.
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- `25xx`: slide envelope period up.
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- `26xx`: slide envelope period down.
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a lower envelope period will make the envelope run faster.
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> how do I use C64 absolute filter/duty?
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on Instrument Editor in the C64 tab there are two options to toggle these.
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also provided are two effects:
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- `3xxx`: set fine duty.
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- `4xxx`: set fine cutoff. `xxx` range is 000-7ff.
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> my song sounds very odd at a certain point
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file a bug report. use the Issues page.
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it's probably another playback inaccuracy.
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> my song sounds correct, but it doesn't in DefleMask
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file a bug report **here**. it still is a playback inaccuracy.
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> my C64 song sounds terrible after saving as .dmf!
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that's a limitation of the DefleMask format. save in Furnace song format instead (.fur).
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