openMSX
opll.hh
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1/*
2 * Copyright (C) 2019 Nuke.YKT
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 *
15 * Yamaha YM2413 emulator
16 * Thanks:
17 * siliconpr0n.org(digshadow, John McMaster):
18 * VRC VII decap and die shot.
19 *
20 * version: 1.0.1
21 */
22
23#ifndef OPLL_H
24#define OPLL_H
25
26#include <cstdint>
27
28enum {
29 opll_type_ym2413 = 0x00, /* Yamaha YM2413 */
30 opll_type_ds1001, /* Konami VRC VII */
31 opll_type_ym2413b, /* Yamaha YM2413B */
32 opll_type_ymf281, /* Yamaha YMF281 */
33 opll_type_ymf281b, /* Yamaha YMF281B */
34 opll_type_ym2420, /* Yamaha YM2420 */
35 opll_type_ym2423, /* Yamaha YM2423 */
36};
37
38enum {
61};
62
64 uint8_t tl;
65 uint8_t dc;
66 uint8_t dm;
67 uint8_t fb;
68 uint8_t am[2];
69 uint8_t vib[2];
70 uint8_t et[2];
71 uint8_t ksr[2];
72 uint8_t multi[2];
73 uint8_t ksl[2];
74 uint8_t ar[2];
75 uint8_t dr[2];
76 uint8_t sl[2];
77 uint8_t rr[2];
78};
79
80struct opll_t {
81 uint32_t chip_type;
82 uint32_t cycles;
83 uint32_t slot;
85 /* IO */
86 uint8_t write_data;
87 uint8_t write_a;
88 uint8_t write_d;
89 uint8_t write_a_en;
90 uint8_t write_d_en;
94 uint8_t address;
95 uint8_t data;
96 /* Envelope generator */
99 uint32_t eg_timer;
105 uint8_t eg_state[18];
106 uint8_t eg_level[18];
107 uint8_t eg_kon;
108 uint32_t eg_dokon;
109 uint8_t eg_off;
110 uint8_t eg_rate;
111 uint8_t eg_maxrate;
112 uint8_t eg_zerorate;
113 uint8_t eg_inc_lo;
114 uint8_t eg_inc_hi;
115 uint8_t eg_rate_hi;
116 uint16_t eg_sl;
117 uint16_t eg_ksltl;
118 uint8_t eg_out;
119 uint8_t eg_silent;
120 /* Phase generator */
121 uint16_t pg_fnum;
122 uint8_t pg_block;
123 uint16_t pg_out;
124 uint32_t pg_inc;
125 uint32_t pg_phase[18];
127 /* Operator */
128 int16_t op_fb1[9];
129 int16_t op_fb2[9];
130 int16_t op_fbsum;
131 int16_t op_mod;
132 uint8_t op_neg;
133 uint16_t op_logsin;
134 uint16_t op_exp_m;
135 uint16_t op_exp_s;
136 /* Channel */
137 int16_t ch_out;
138 int16_t ch_out_hh;
139 int16_t ch_out_tm;
140 int16_t ch_out_bd;
141 int16_t ch_out_sd;
142 int16_t ch_out_tc;
143 /* LFO */
144 uint16_t lfo_counter;
147 uint8_t lfo_am_step;
148 uint8_t lfo_am_dir;
149 uint8_t lfo_am_car;
150 uint8_t lfo_am_out;
151 /* Register set */
152 uint16_t fnum[9];
153 uint8_t block[9];
154 uint8_t kon[9];
155 uint8_t son[9];
156 uint8_t vol[9];
157 uint8_t inst[9];
158 uint8_t rhythm;
159 uint8_t testmode;
161 uint8_t c_instr;
162 uint8_t c_op;
163 uint8_t c_tl;
164 uint8_t c_dc;
165 uint8_t c_dm;
166 uint8_t c_fb;
167 uint8_t c_am;
168 uint8_t c_vib;
169 uint8_t c_et;
170 uint8_t c_ksr;
171 uint8_t c_ksr_freq;
172 uint8_t c_ksl_freq;
173 uint8_t c_ksl_block;
174 uint8_t c_multi;
175 uint8_t c_ksl;
176 uint8_t c_adrr[3];
177 uint8_t c_sl;
178 uint16_t c_fnum;
179 uint16_t c_block;
180 /* Rhythm mode */
181 int8_t rm_enable;
182 uint32_t rm_noise;
183 uint32_t rm_select;
184 uint8_t rm_hh_bit2;
185 uint8_t rm_hh_bit3;
186 uint8_t rm_hh_bit7;
187 uint8_t rm_hh_bit8;
188 uint8_t rm_tc_bit3;
189 uint8_t rm_tc_bit5;
190
191 int16_t output_m;
192 int16_t output_r;
193};
194
195void OPLL_Reset(opll_t *chip, uint32_t chip_type);
196void OPLL_Clock(opll_t *chip, int32_t *buffer);
197void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data);
198
199#endif
@ opll_patch_6
Definition opll.hh:44
@ opll_patch_14
Definition opll.hh:52
@ opll_patch_drum_3
Definition opll.hh:57
@ opll_patch_15
Definition opll.hh:53
@ opll_patch_9
Definition opll.hh:47
@ opll_patch_8
Definition opll.hh:46
@ opll_patch_drum_2
Definition opll.hh:56
@ opll_patch_drum_4
Definition opll.hh:58
@ opll_patch_1
Definition opll.hh:39
@ opll_patch_drum_1
Definition opll.hh:55
@ opll_patch_12
Definition opll.hh:50
@ opll_patch_7
Definition opll.hh:45
@ opll_patch_5
Definition opll.hh:43
@ opll_patch_10
Definition opll.hh:48
@ opll_patch_4
Definition opll.hh:42
@ opll_patch_11
Definition opll.hh:49
@ opll_patch_2
Definition opll.hh:40
@ opll_patch_3
Definition opll.hh:41
@ opll_patch_max
Definition opll.hh:60
@ opll_patch_drum_0
Definition opll.hh:54
@ opll_patch_drum_5
Definition opll.hh:59
@ opll_patch_13
Definition opll.hh:51
void OPLL_Reset(opll_t *chip, uint32_t chip_type)
Definition opll.cc:293
void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data)
Definition opll.cc:1101
void OPLL_Clock(opll_t *chip, int32_t *buffer)
Definition opll.cc:1062
@ opll_type_ym2413b
Definition opll.hh:31
@ opll_type_ym2420
Definition opll.hh:34
@ opll_type_ds1001
Definition opll.hh:30
@ opll_type_ymf281b
Definition opll.hh:33
@ opll_type_ymf281
Definition opll.hh:32
@ opll_type_ym2423
Definition opll.hh:35
@ opll_type_ym2413
Definition opll.hh:29
uint8_t tl
Definition opll.hh:64
uint8_t rr[2]
Definition opll.hh:77
uint8_t ar[2]
Definition opll.hh:74
uint8_t vib[2]
Definition opll.hh:69
uint8_t dm
Definition opll.hh:66
uint8_t fb
Definition opll.hh:67
uint8_t dc
Definition opll.hh:65
uint8_t sl[2]
Definition opll.hh:76
uint8_t dr[2]
Definition opll.hh:75
uint8_t am[2]
Definition opll.hh:68
uint8_t multi[2]
Definition opll.hh:72
uint8_t et[2]
Definition opll.hh:70
uint8_t ksl[2]
Definition opll.hh:73
uint8_t ksr[2]
Definition opll.hh:71
Definition opll.hh:80
uint8_t rm_hh_bit7
Definition opll.hh:186
uint8_t c_tl
Definition opll.hh:163
uint8_t address
Definition opll.hh:94
uint8_t eg_timer_shift_stop
Definition opll.hh:104
uint8_t write_a_en
Definition opll.hh:89
uint8_t c_sl
Definition opll.hh:177
uint16_t c_fnum
Definition opll.hh:178
uint16_t lfo_counter
Definition opll.hh:144
uint8_t c_ksl_freq
Definition opll.hh:172
uint8_t eg_timer_low_lock
Definition opll.hh:100
uint8_t c_instr
Definition opll.hh:161
uint8_t son[9]
Definition opll.hh:155
uint32_t pg_phase[18]
Definition opll.hh:125
uint8_t lfo_vib_counter
Definition opll.hh:145
uint8_t eg_off
Definition opll.hh:109
uint8_t write_fm_data
Definition opll.hh:92
uint8_t c_op
Definition opll.hh:162
uint8_t c_vib
Definition opll.hh:168
uint8_t c_am
Definition opll.hh:167
uint8_t inst[9]
Definition opll.hh:157
uint8_t lfo_am_car
Definition opll.hh:149
int16_t op_fb1[9]
Definition opll.hh:128
uint32_t eg_timer
Definition opll.hh:99
uint8_t eg_counter_state
Definition opll.hh:97
uint8_t eg_timer_shift_lock
Definition opll.hh:103
int16_t ch_out_bd
Definition opll.hh:140
uint8_t rm_hh_bit3
Definition opll.hh:185
uint8_t pg_block
Definition opll.hh:122
uint16_t op_logsin
Definition opll.hh:133
uint16_t op_exp_m
Definition opll.hh:134
uint32_t rm_noise
Definition opll.hh:182
uint8_t write_d
Definition opll.hh:88
uint8_t c_fb
Definition opll.hh:166
int16_t ch_out_tc
Definition opll.hh:142
uint32_t cycles
Definition opll.hh:82
opll_patch_t patch
Definition opll.hh:160
uint16_t lfo_am_counter
Definition opll.hh:146
uint8_t testmode
Definition opll.hh:159
uint8_t eg_rate_hi
Definition opll.hh:115
int16_t op_fbsum
Definition opll.hh:130
uint8_t lfo_am_step
Definition opll.hh:147
int16_t ch_out_hh
Definition opll.hh:138
uint16_t eg_sl
Definition opll.hh:116
uint8_t c_multi
Definition opll.hh:174
uint8_t lfo_am_out
Definition opll.hh:150
uint32_t eg_dokon
Definition opll.hh:108
uint8_t rm_hh_bit2
Definition opll.hh:184
uint8_t c_adrr[3]
Definition opll.hh:176
uint16_t eg_ksltl
Definition opll.hh:117
uint8_t c_ksl_block
Definition opll.hh:173
uint8_t rm_hh_bit8
Definition opll.hh:187
int8_t rm_enable
Definition opll.hh:181
uint8_t eg_level[18]
Definition opll.hh:106
uint8_t write_a
Definition opll.hh:87
uint8_t rhythm
Definition opll.hh:158
int16_t op_mod
Definition opll.hh:131
uint8_t rm_tc_bit3
Definition opll.hh:188
uint16_t fnum[9]
Definition opll.hh:152
int16_t ch_out
Definition opll.hh:137
uint16_t pg_fnum
Definition opll.hh:121
uint16_t c_block
Definition opll.hh:179
uint8_t c_ksl
Definition opll.hh:175
uint8_t eg_state[18]
Definition opll.hh:105
uint32_t pg_phase_next
Definition opll.hh:126
uint8_t op_neg
Definition opll.hh:132
uint8_t eg_maxrate
Definition opll.hh:111
uint8_t write_d_en
Definition opll.hh:90
uint8_t eg_silent
Definition opll.hh:119
uint32_t rm_select
Definition opll.hh:183
uint8_t rm_tc_bit5
Definition opll.hh:189
uint8_t eg_timer_carry
Definition opll.hh:101
uint8_t eg_kon
Definition opll.hh:107
int16_t output_r
Definition opll.hh:192
uint8_t lfo_am_dir
Definition opll.hh:148
uint32_t chip_type
Definition opll.hh:81
int16_t ch_out_sd
Definition opll.hh:141
uint8_t eg_timer_shift
Definition opll.hh:102
uint8_t write_fm_address
Definition opll.hh:91
uint8_t eg_zerorate
Definition opll.hh:112
uint16_t op_exp_s
Definition opll.hh:135
uint16_t pg_out
Definition opll.hh:123
uint8_t block[9]
Definition opll.hh:153
uint8_t data
Definition opll.hh:95
uint32_t pg_inc
Definition opll.hh:124
uint8_t c_ksr
Definition opll.hh:170
uint8_t eg_counter_state_prev
Definition opll.hh:98
uint8_t eg_out
Definition opll.hh:118
int16_t op_fb2[9]
Definition opll.hh:129
const opll_patch_t * patchrom
Definition opll.hh:84
uint8_t c_et
Definition opll.hh:169
uint8_t write_data
Definition opll.hh:86
uint8_t c_ksr_freq
Definition opll.hh:171
uint8_t c_dc
Definition opll.hh:164
uint8_t write_mode_address
Definition opll.hh:93
uint32_t slot
Definition opll.hh:83
uint8_t eg_inc_lo
Definition opll.hh:113
uint8_t eg_inc_hi
Definition opll.hh:114
uint8_t c_dm
Definition opll.hh:165
uint8_t eg_rate
Definition opll.hh:110
uint8_t kon[9]
Definition opll.hh:154
uint8_t vol[9]
Definition opll.hh:156
int16_t output_m
Definition opll.hh:191
int16_t ch_out_tm
Definition opll.hh:139