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annotate rf5c164.h @ 2278:5a21bc0ec583

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Implement turbo/slo mo for Sega CD
author Michael Pavone <pavone@retrodev.com>
date Mon, 02 Jan 2023 13:08:49 -0800
parents 0d1d5dccdd28
children 9ead0fe69d9b
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1 #ifndef RF5C164_H_
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2 #define RF5C164_H_
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3 #include <stdint.h>
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4 #include "render_audio.h"
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5 #include "oscilloscope.h"
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6
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7 typedef struct {
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8 uint32_t cur_ptr;
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9 uint8_t regs[7];
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10 uint8_t sample;
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11 uint8_t state;
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12 uint8_t scope_channel;
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13 uint8_t trigger;
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14 } rf5c164_channel;
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16 typedef struct {
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17 audio_source *audio;
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18 oscilloscope *scope;
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19 uint32_t cycle;
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20 uint32_t clock_step;
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21 uint16_t ram[64*1024];
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22 uint16_t ram_bank;
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23 uint16_t pending_address;
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24 int32_t left;
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25 int32_t right;
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26 rf5c164_channel channels[8];
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27 uint8_t pending_byte;
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28 uint8_t channel_enable;
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29 uint8_t selected_channel;
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30 uint8_t cur_channel;
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31 uint8_t step;
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32 uint8_t flags;
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33 } rf5c164;
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34
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35 void rf5c164_init(rf5c164* pcm, uint32_t mclks, uint32_t divider);
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36 void rf5c164_deinit(rf5c164* pcm);
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37 void rf5c164_adjust_master_clock(rf5c164* pcm, uint32_t mclks);
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38 void rf5c164_run(rf5c164* pcm, uint32_t cycle);
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39 void rf5c164_write(rf5c164* pcm, uint16_t address, uint8_t value);
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40 uint8_t rf5c164_read(rf5c164* pcm, uint16_t address);
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41 void rf5c164_enable_scope(rf5c164* pcm, oscilloscope *scope);
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43 #endif //RF5C164_H_