90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
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/*
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** File: ym2151.h - header file for software implementation of YM2151
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** FM Operator Type-M(OPM)
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**
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** (c) 1997-2002 Jarek Burczynski (s0246@poczta.onet.pl, bujar@mame.net)
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** Some of the optimizing ideas by Tatsuyuki Satoh
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**
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** Version 2.150 final beta May, 11th 2002
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**
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**
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** I would like to thank following people for making this project possible:
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**
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** Beauty Planets - for making a lot of real YM2151 samples and providing
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** additional informations about the chip. Also for the time spent making
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** the samples and the speed of replying to my endless requests.
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**
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** Shigeharu Isoda - for general help, for taking time to scan his YM2151
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** Japanese Manual first of all, and answering MANY of my questions.
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**
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** Nao - for giving me some info about YM2151 and pointing me to Shigeharu.
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** Also for creating fmemu (which I still use to test the emulator).
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**
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** Aaron Giles and Chris Hardy - they made some samples of one of my favourite
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** arcade games so I could compare it to my emulator.
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**
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** Bryan McPhail and Tim (powerjaw) - for making some samples.
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**
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** Ishmair - for the datasheet and motivation.
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*/
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#pragma once
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#ifndef __YM2151_H__
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#define __YM2151_H__
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/* 16- and 8-bit samples (signed) are supported*/
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#define SAMPLE_BITS 16
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#include "mamedef.h"
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typedef stream_sample_t SAMP;
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/*
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#if (SAMPLE_BITS==16)
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typedef INT16 SAMP;
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#endif
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#if (SAMPLE_BITS==8)
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typedef signed char SAMP;
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#endif
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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** Initialize YM2151 emulator(s).
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**
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** 'num' is the number of virtual YM2151's to allocate
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** 'clock' is the chip clock in Hz
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** 'rate' is sampling rate
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*/
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void *ym2151_init(int clock, int rate);
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/* shutdown the YM2151 emulators*/
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void ym2151_shutdown(void *chip);
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/* reset all chip registers for YM2151 number 'num'*/
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void ym2151_reset_chip(void *chip);
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/*
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** Generate samples for one of the YM2151's
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**
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** 'num' is the number of virtual YM2151
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** '**buffers' is table of pointers to the buffers: left and right
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** 'length' is the number of samples that should be generated
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*/
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void ym2151_update_one(void *chip, SAMP **buffers, int length);
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/* write 'v' to register 'r' on YM2151 chip number 'n'*/
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void ym2151_write_reg(void *chip, int r, int v);
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void ym2151_set_mask(void *chip, UINT32 mask);
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#ifdef __cplusplus
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}
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#endif
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#endif /*__YM2151_H__*/
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