mirror of https://github.com/ZDoom/gzdoom-gles.git
87 lines
3.1 KiB
Plaintext
87 lines
3.1 KiB
Plaintext
snes_spc 0.9.0: SNES SPC-700 APU Emulator
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-----------------------------------------
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This library includes a full SPC emulator and an S-DSP emulator that can
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be used on its own. Two S-DSP emulators are available: a highly accurate
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one for use in a SNES emulator, and a 3x faster one for use in an SPC
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music player or a resource-limited SNES emulator.
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* Can be used from C and C++ code
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* Full SPC-700 APU emulator with cycle accuracy in most cases
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* Loads, plays, and saves SPC music files
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* Can save and load exact full emulator state
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* DSP voice muting, surround sound disable, and song tempo adjustment
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* Uses 7% CPU average on 400 MHz Mac to play an SPC using fast DSP
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The accurate DSP emulator is based on past research by others and
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hundreds of hours of recent research by me. It passes over a hundred
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strenuous timing and behavior validation tests that were also run on the
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SNES. As far as I know, it's the first DSP emulator with cycle accuracy,
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properly emulating every DSP register and memory access at the exact SPC
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cycle it occurs at, whereas previous DSP emulators emulated these only
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to the nearest sample (which occurs every 32 clocks).
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Author : Shay Green <gblargg@gmail.com>
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Website: http://www.slack.net/~ant/
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Forum : http://groups.google.com/group/blargg-sound-libs
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License: GNU Lesser General Public License (LGPL)
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Getting Started
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---------------
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Build a program consisting of demo/play_spc.c, demo/demo_util.c,
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demo/wave_writer.c, and all source files in snes_spc/. Put an SPC music
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file in the same directory and name it "test.spc". Running the program
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should generate the recording "out.wav".
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Read snes_spc.txt for more information. Post to the discussion forum for
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assistance.
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Files
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-----
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snes_spc.txt Documentation
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changes.txt Change log
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license.txt GNU LGPL license
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demo/
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play_spc.c Records SPC file to wave sound file
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benchmark.c Finds how fast emulator runs on your computer
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trim_spc.c Trims silence off beginning of an SPC file
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save_state.c Saves/loads exact emulator state to/from file
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comm.c Communicates with SPC how SNES would
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demo_util.h General utility functions used by demos
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demo_util.c
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wave_writer.h WAVE sound file writer used for demo output
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wave_writer.c
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fast_dsp/ Optional standalone fast DSP emulator
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SPC_DSP.h To use with full SPC emulator, move into
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SPC_DSP.cpp snes_spc/ and replace original files
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snes_spc/ Library sources
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blargg_config.h Configuration (modify as necessary)
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spc.h C interface to SPC emulator and sound filter
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spc.cpp
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SPC_Filter.h Optional filter to make sound more authentic
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SPC_Filter.cpp
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SNES_SPC.h Full SPC emulator
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SNES_SPC.cpp
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SNES_SPC_misc.cpp
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SNES_SPC_state.cpp
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SPC_CPU.h
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dsp.h C interface to DSP emulator
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dsp.cpp
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SPC_DSP.h Standalone accurate DSP emulator
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SPC_DSP.cpp
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blargg_common.h
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blargg_endian.h
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blargg_source.h
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--
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Shay Green <gblargg@gmail.com>
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