Mercurial > repos > blastem
annotate ym2612.h @ 1645:84ef1eb2c96a
Added code for actually saving new controller bindings to an appropriate key in the config file
author | Michael Pavone <pavone@retrodev.com> |
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date | Fri, 30 Nov 2018 00:35:05 -0800 |
parents | 6ce36c3f250b |
children | 804f13c090b4 |
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Added copyright notice to source files and added GPL license text in COPYING
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
467
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
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6 #ifndef YM2612_H_ |
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7 #define YM2612_H_ |
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8 |
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9 #include <stdint.h> |
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10 #include <stdio.h> |
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11 #include "serialize.h" |
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12 #include "render.h" |
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13 |
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14 #define NUM_PART_REGS (0xB7-0x30) |
362 | 15 #define NUM_CHANNELS 6 |
16 #define NUM_OPERATORS (4*NUM_CHANNELS) | |
17 | |
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18 #define YM_OPT_WAVE_LOG 1 |
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19 |
362 | 20 typedef struct { |
21 uint32_t phase_counter; | |
22 uint16_t envelope; | |
371
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23 int16_t output; |
362 | 24 uint16_t total_level; |
25 uint16_t sustain_level; | |
26 uint8_t rates[4]; | |
27 uint8_t key_scaling; | |
28 uint8_t multiple; | |
29 uint8_t detune; | |
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Add a basic YM-2612 command to the debugger. Fix negative detune values and get the correct precision for the multiplication step of phase inc calculation
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30 uint8_t am; |
362 | 31 uint8_t env_phase; |
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32 uint8_t ssg; |
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33 uint8_t inverted; |
362 | 34 } ym_operator; |
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35 |
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36 typedef struct { |
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37 FILE * logfile; |
362 | 38 uint16_t fnum; |
39 int16_t output; | |
527
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Fix operator 1 self-feedback
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40 int16_t op1_old; |
362 | 41 uint8_t block_fnum_latch; |
42 uint8_t block; | |
43 uint8_t keycode; | |
44 uint8_t algorithm; | |
45 uint8_t feedback; | |
46 uint8_t ams; | |
47 uint8_t pms; | |
48 uint8_t lr; | |
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49 uint8_t keyon; |
362 | 50 } ym_channel; |
51 | |
52 typedef struct { | |
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53 uint16_t fnum; |
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54 uint8_t block; |
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55 uint8_t block_fnum_latch; |
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56 uint8_t keycode; |
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57 } ym_supp; |
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58 |
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59 #define YM_PART1_START 0x21 |
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60 #define YM_PART2_START 0x30 |
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61 #define YM_REG_END 0xB8 |
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62 #define YM_PART1_REGS (YM_REG_END-YM_PART1_START) |
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63 #define YM_PART2_REGS (YM_REG_END-YM_PART2_START) |
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64 |
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65 typedef struct { |
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66 audio_source *audio; |
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Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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67 uint32_t clock_inc; |
362 | 68 uint32_t current_cycle; |
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69 //TODO: Condense the next two fields into one |
362 | 70 uint32_t write_cycle; |
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71 uint32_t busy_cycles; |
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Implemented linear resampling and low pass filter for the YM2612
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72 uint32_t lowpass_alpha; |
362 | 73 ym_operator operators[NUM_OPERATORS]; |
74 ym_channel channels[NUM_CHANNELS]; | |
75 uint16_t timer_a; | |
76 uint16_t timer_a_load; | |
364
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77 uint16_t env_counter; |
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78 ym_supp ch3_supp[3]; |
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79 uint8_t timer_b; |
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80 uint8_t sub_timer_b; |
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81 uint8_t timer_b_load; |
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82 uint8_t ch3_mode; |
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83 uint8_t current_op; |
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84 uint8_t current_env_op; |
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85 |
362 | 86 uint8_t timer_control; |
87 uint8_t dac_enable; | |
411
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88 uint8_t lfo_enable; |
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89 uint8_t lfo_freq; |
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90 uint8_t lfo_counter; |
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91 uint8_t lfo_am_step; |
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92 uint8_t lfo_pm_step; |
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93 uint8_t csm_keyon; |
362 | 94 uint8_t status; |
95 uint8_t selected_reg; | |
96 uint8_t selected_part; | |
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97 uint8_t part1_regs[YM_PART1_REGS]; |
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98 uint8_t part2_regs[YM_PART2_REGS]; |
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99 } ym2612_context; |
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100 |
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101 enum { |
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102 REG_LFO = 0x22, |
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103 REG_TIMERA_HIGH = 0x24, |
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104 REG_TIMERA_LOW, |
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105 REG_TIMERB, |
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106 REG_TIME_CTRL, |
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107 REG_KEY_ONOFF, |
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108 REG_DAC = 0x2A, |
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109 REG_DAC_ENABLE, |
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110 |
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111 REG_DETUNE_MULT = 0x30, |
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112 REG_TOTAL_LEVEL = 0x40, |
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113 REG_ATTACK_KS = 0x50, |
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114 REG_DECAY_AM = 0x60, |
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115 REG_SUSTAIN_RATE = 0x70, |
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116 REG_S_LVL_R_RATE = 0x80, |
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117 REG_SSG_EG = 0x90, |
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118 |
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119 REG_FNUM_LOW = 0xA0, |
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120 REG_BLOCK_FNUM_H = 0xA4, |
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121 REG_FNUM_LOW_CH3 = 0xA8, |
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122 REG_BLOCK_FN_CH3 = 0xAC, |
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123 REG_ALG_FEEDBACK = 0xB0, |
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124 REG_LR_AMS_PMS = 0xB4 |
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125 }; |
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126 |
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127 void ym_init(ym2612_context * context, uint32_t master_clock, uint32_t clock_div, uint32_t options); |
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128 void ym_reset(ym2612_context *context); |
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129 void ym_free(ym2612_context *context); |
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130 void ym_adjust_master_clock(ym2612_context * context, uint32_t master_clock); |
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131 void ym_run(ym2612_context * context, uint32_t to_cycle); |
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132 void ym_address_write_part1(ym2612_context * context, uint8_t address); |
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133 void ym_address_write_part2(ym2612_context * context, uint8_t address); |
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134 void ym_data_write(ym2612_context * context, uint8_t value); |
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135 uint8_t ym_read_status(ym2612_context * context); |
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136 uint8_t ym_load_gst(ym2612_context * context, FILE * gstfile); |
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137 uint8_t ym_save_gst(ym2612_context * context, FILE * gstfile); |
739
2317bdca03b4
Add a basic YM-2612 command to the debugger. Fix negative detune values and get the correct precision for the multiplication step of phase inc calculation
Michael Pavone <pavone@retrodev.com>
parents:
535
diff
changeset
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138 void ym_print_channel_info(ym2612_context *context, int channel); |
930
f33e8d88ab6f
Add yt debug command for printing YM-2612 timer info. Fix AMS shift values.
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
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139 void ym_print_timer_info(ym2612_context *context); |
1427
4e5797b3935a
WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents:
1308
diff
changeset
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140 void ym_serialize(ym2612_context *context, serialize_buffer *buf); |
4e5797b3935a
WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents:
1308
diff
changeset
|
141 void ym_deserialize(deserialize_buffer *buf, void *vcontext); |
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
|
142 |
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
|
143 #endif //YM2612_H_ |
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
|
144 |