Mercurial > repos > blastem
annotate ym2612.h @ 362:b7c3facee762
YM2612 WIP update
| author | Mike Pavone <pavone@retrodev.com> |
|---|---|
| date | Mon, 27 May 2013 22:19:11 -0700 |
| parents | cc39629e8d06 |
| children | 62177cc39049 |
| rev | line source |
|---|---|
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288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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1 #ifndef YM2612_H_ |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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2 #define YM2612_H_ |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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3 |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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4 #include <stdint.h> |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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5 |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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6 #define NUM_PART_REGS (0xB7-0x30) |
| 362 | 7 #define NUM_CHANNELS 6 |
| 8 #define NUM_OPERATORS (4*NUM_CHANNELS) | |
| 9 | |
| 10 typedef struct { | |
| 11 uint32_t phase_inc; | |
| 12 uint32_t phase_counter; | |
| 13 uint16_t envelope; | |
| 14 uint16_t output; | |
| 15 uint16_t total_level; | |
| 16 uint16_t sustain_level; | |
| 17 uint8_t rates[4]; | |
| 18 uint8_t key_scaling; | |
| 19 uint8_t multiple; | |
| 20 uint8_t detune; | |
| 21 uint8_t env_phase; | |
| 22 } ym_operator; | |
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288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
23 |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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24 typedef struct { |
| 362 | 25 uint16_t fnum; |
| 26 int16_t output; | |
| 27 uint8_t block_fnum_latch; | |
| 28 uint8_t block; | |
| 29 uint8_t keycode; | |
| 30 uint8_t algorithm; | |
| 31 uint8_t feedback; | |
| 32 uint8_t ams; | |
| 33 uint8_t pms; | |
| 34 uint8_t lr; | |
| 35 } ym_channel; | |
| 36 | |
| 37 typedef struct { | |
| 38 uint32_t current_cycle; | |
| 39 uint32_t write_cycle; | |
| 40 ym_operator operators[NUM_OPERATORS]; | |
| 41 ym_channel channels[NUM_CHANNELS]; | |
| 42 uint16_t timer_a; | |
| 43 uint16_t timer_a_load; | |
| 44 uint8_t timer_b; | |
| 45 uint8_t timer_b_load; | |
| 46 uint8_t timer_control; | |
| 47 uint8_t dac_enable; | |
| 48 uint8_t status; | |
| 49 uint8_t selected_reg; | |
| 50 uint8_t selected_part; | |
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288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
51 } ym2612_context; |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
52 |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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53 void ym_init(ym2612_context * context); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
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54 void ym_run(ym2612_context * context, uint32_t to_cycle); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
55 void ym_address_write_part1(ym2612_context * context, uint8_t address); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
56 void ym_address_write_part2(ym2612_context * context, uint8_t address); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
57 void ym_data_write(ym2612_context * context, uint8_t value); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
58 uint8_t ym_read_status(ym2612_context * context); |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
59 |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
60 #endif //YM2612_H_ |
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a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
61 |