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annotate vgm.h @ 995:2bc27415565b

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Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
author Michael Pavone <pavone@retrodev.com>
date Sat, 30 Apr 2016 08:37:55 -0700
parents a2034b8d7495
children 508522f08e4d
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1 #ifndef VGM_H_
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2 #define VGM_H_
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3
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4 #pragma pack(push, 1)
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5 typedef struct {
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6 char ident[4];
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7 uint32_t eof_offset;
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8 uint32_t version;
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9 uint32_t sn76489_clk;
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10 uint32_t ym2413_clk;
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11 uint32_t gd3_offset;
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12 uint32_t num_samples;
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13 uint32_t loop_offset;
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14 uint32_t loop_samples;
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15 uint32_t rate;
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16 uint16_t sn76489_fb;
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17 uint8_t sn76489_shift;
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18 uint8_t sn76489_flags;
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19 uint32_t ym2612_clk;
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20 uint32_t ym2151_clk;
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21 uint32_t data_offset;
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22 uint32_t sega_pcm_clk;
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23 uint32_t sega_pcm_reg;
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24 } vgm_header;
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25
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26 enum {
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27 CMD_PSG_STEREO = 0x4F,
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28 CMD_PSG,
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29 CMD_YM2413,
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30 CMD_YM2612_0,
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31 CMD_YM2612_1,
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32 CMD_YM2151,
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33 CMD_YM2203,
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34 CMD_YM2608_0,
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35 CMD_YM2608_1,
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36 CMD_YM2610_0,
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37 CMD_YM2610_1,
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38 CMD_YM3812,
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39 CMD_YM3526,
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40 CMD_Y8950,
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41 CMD_YMZ280B,
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42 CMD_YMF262_0,
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43 CMD_YMF262_1,
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44 CMD_WAIT = 0x61,
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45 CMD_WAIT_60,
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46 CMD_WAIT_50,
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47 CMD_END = 0x66,
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48 CMD_DATA,
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49 CMD_PCM_WRITE,
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50 CMD_WAIT_SHORT = 0x70,
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51 CMD_YM2612_DAC = 0x80,
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52 CMD_DAC_STREAM_SETUP = 0x90,
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53 CMD_DAC_STREAM_DATA,
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54 CMD_DAC_STREAM_FREQ,
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55 CMD_DAC_STREAM_START,
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56 CMD_DAC_STREAM_STOP,
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57 CMD_DAC_STREAM_STARTFAST,
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58 CMD_DATA_SEEK = 0xE0
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59 };
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60
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61 enum {
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62 DATA_YM2612_PCM = 0
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63 };
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64
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65 #pragma pack(pop)
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66
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67 typedef struct {
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68 struct data_block *next;
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69 uint8_t *data;
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70 uint32_t size;
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71 uint8_t type;
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72 } data_block;
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73
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74 #endif //VGM_H_