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58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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#ifndef _MSU1_H_
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#define _MSU1_H_
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#include "snes9x.h"
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#define MSU1_REVISION 0x02
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struct SMSU1
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{
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uint8 MSU1_STATUS;
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uint32 MSU1_DATA_SEEK;
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uint32 MSU1_DATA_POS;
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uint16 MSU1_TRACK_SEEK;
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uint16 MSU1_CURRENT_TRACK;
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uint32 MSU1_RESUME_TRACK;
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uint8 MSU1_VOLUME;
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uint8 MSU1_CONTROL;
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uint32 MSU1_AUDIO_POS;
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uint32 MSU1_RESUME_POS;
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};
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enum SMSU1_FLAG {
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Revision = 0x07, // bitmask, not the actual version number
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AudioError = 0x08,
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AudioPlaying = 0x10,
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AudioRepeating = 0x20,
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AudioBusy = 0x40,
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DataBusy = 0x80
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};
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enum SMSU1_CMD {
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Play = 0x01,
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Repeat = 0x02,
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Resume = 0x04
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};
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extern struct SMSU1 MSU1;
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void S9xResetMSU(void);
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void S9xMSU1Init(void);
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void S9xMSU1DeInit(void);
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bool S9xMSU1ROMExists(void);
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STREAM S9xMSU1OpenFile(const char *msu_ext, bool skip_unpacked = FALSE);
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void S9xMSU1Init(void);
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void S9xMSU1Generate(size_t sample_count);
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uint8 S9xMSU1ReadPort(uint8 port);
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void S9xMSU1WritePort(uint8 port, uint8 byte);
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size_t S9xMSU1Samples(void);
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void S9xMSU1SetOutput(int16 *out, size_t size);
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void S9xMSU1PostLoadState(void);
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#endif
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