From db7307eea106d78872428c04f3c717eba78cc969 Mon Sep 17 00:00:00 2001 From: Fabio Cavallo Date: Sat, 11 Nov 2023 17:25:21 +0100 Subject: [PATCH] Updated Nuked-OPLL (#341). --- src/CMakeLists.txt | 2 +- src/core/mappers/VRC7_snd.c | 2 +- src/extra/Nuked-OPLL/.github/FUNDING.yml | 12 + src/extra/Nuked-OPLL/LICENSE | 339 +++ src/{core/mappers => extra/Nuked-OPLL}/opll.c | 2210 +++++++++-------- src/{core/mappers => extra/Nuked-OPLL}/opll.h | 398 +-- 6 files changed, 1662 insertions(+), 1301 deletions(-) create mode 100644 src/extra/Nuked-OPLL/.github/FUNDING.yml create mode 100644 src/extra/Nuked-OPLL/LICENSE rename src/{core/mappers => extra/Nuked-OPLL}/opll.c (97%) rename src/{core/mappers => extra/Nuked-OPLL}/opll.h (95%) diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 14f36fded..73a5fb9ef 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -494,7 +494,7 @@ set(core_srcs core/mappers/MMC4.c core/mappers/N118.c core/mappers/OneBus.c - core/mappers/opll.c + extra/Nuked-OPLL/opll.c core/mappers/serial_devices.cpp core/mappers/serial_devices_interface.cpp core/mappers/SST39SF040.c diff --git a/src/core/mappers/VRC7_snd.c b/src/core/mappers/VRC7_snd.c index 51e12214c..37a871678 100644 --- a/src/core/mappers/VRC7_snd.c +++ b/src/core/mappers/VRC7_snd.c @@ -25,7 +25,7 @@ #include "VRC7_snd.h" #include "save_slot.h" #include "clock.h" -#include "opll.h" +#include "extra/Nuked-OPLL/opll.h" typedef struct _opll { opll_t chip; diff --git a/src/extra/Nuked-OPLL/.github/FUNDING.yml b/src/extra/Nuked-OPLL/.github/FUNDING.yml new file mode 100644 index 000000000..e778d684e --- /dev/null +++ b/src/extra/Nuked-OPLL/.github/FUNDING.yml @@ -0,0 +1,12 @@ + # These are supported funding model platforms + +github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2] +patreon: nukeykt # Replace with a single Patreon username +open_collective: # Replace with a single Open Collective username +ko_fi: # Replace with a single Ko-fi username +tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel +community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry +liberapay: # Replace with a single Liberapay username +issuehunt: # Replace with a single IssueHunt username +otechie: # Replace with a single Otechie username +custom: ['https://www.buymeacoffee.com/nukeykt', 'https://paypal.me/nukeykt'] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2'] diff --git a/src/extra/Nuked-OPLL/LICENSE b/src/extra/Nuked-OPLL/LICENSE new file mode 100644 index 000000000..d159169d1 --- /dev/null +++ b/src/extra/Nuked-OPLL/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/src/core/mappers/opll.c b/src/extra/Nuked-OPLL/opll.c similarity index 97% rename from src/core/mappers/opll.c rename to src/extra/Nuked-OPLL/opll.c index 0d8748b11..01f1a00b9 100644 --- a/src/core/mappers/opll.c +++ b/src/extra/Nuked-OPLL/opll.c @@ -1,1100 +1,1110 @@ -/* - * Copyright (C) 2019 Nuke.YKT - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - * Yamaha YM2413 emulator - * Thanks: - * siliconpr0n.org(digshadow, John McMaster): - * VRC VII decap and die shot. - * - * version: 1.0.1 - */ - -#include -#include "opll.h" - -enum { - eg_num_attack = 0, - eg_num_decay = 1, - eg_num_sustain = 2, - eg_num_release = 3 -}; - -enum { - rm_num_bd0 = 0, - rm_num_hh = 1, - rm_num_tom = 2, - rm_num_bd1 = 3, - rm_num_sd = 4, - rm_num_tc = 5 -}; - -/* logsin table */ -static const uint16_t logsinrom[256] = { - 0x859, 0x6c3, 0x607, 0x58b, 0x52e, 0x4e4, 0x4a6, 0x471, - 0x443, 0x41a, 0x3f5, 0x3d3, 0x3b5, 0x398, 0x37e, 0x365, - 0x34e, 0x339, 0x324, 0x311, 0x2ff, 0x2ed, 0x2dc, 0x2cd, - 0x2bd, 0x2af, 0x2a0, 0x293, 0x286, 0x279, 0x26d, 0x261, - 0x256, 0x24b, 0x240, 0x236, 0x22c, 0x222, 0x218, 0x20f, - 0x206, 0x1fd, 0x1f5, 0x1ec, 0x1e4, 0x1dc, 0x1d4, 0x1cd, - 0x1c5, 0x1be, 0x1b7, 0x1b0, 0x1a9, 0x1a2, 0x19b, 0x195, - 0x18f, 0x188, 0x182, 0x17c, 0x177, 0x171, 0x16b, 0x166, - 0x160, 0x15b, 0x155, 0x150, 0x14b, 0x146, 0x141, 0x13c, - 0x137, 0x133, 0x12e, 0x129, 0x125, 0x121, 0x11c, 0x118, - 0x114, 0x10f, 0x10b, 0x107, 0x103, 0x0ff, 0x0fb, 0x0f8, - 0x0f4, 0x0f0, 0x0ec, 0x0e9, 0x0e5, 0x0e2, 0x0de, 0x0db, - 0x0d7, 0x0d4, 0x0d1, 0x0cd, 0x0ca, 0x0c7, 0x0c4, 0x0c1, - 0x0be, 0x0bb, 0x0b8, 0x0b5, 0x0b2, 0x0af, 0x0ac, 0x0a9, - 0x0a7, 0x0a4, 0x0a1, 0x09f, 0x09c, 0x099, 0x097, 0x094, - 0x092, 0x08f, 0x08d, 0x08a, 0x088, 0x086, 0x083, 0x081, - 0x07f, 0x07d, 0x07a, 0x078, 0x076, 0x074, 0x072, 0x070, - 0x06e, 0x06c, 0x06a, 0x068, 0x066, 0x064, 0x062, 0x060, - 0x05e, 0x05c, 0x05b, 0x059, 0x057, 0x055, 0x053, 0x052, - 0x050, 0x04e, 0x04d, 0x04b, 0x04a, 0x048, 0x046, 0x045, - 0x043, 0x042, 0x040, 0x03f, 0x03e, 0x03c, 0x03b, 0x039, - 0x038, 0x037, 0x035, 0x034, 0x033, 0x031, 0x030, 0x02f, - 0x02e, 0x02d, 0x02b, 0x02a, 0x029, 0x028, 0x027, 0x026, - 0x025, 0x024, 0x023, 0x022, 0x021, 0x020, 0x01f, 0x01e, - 0x01d, 0x01c, 0x01b, 0x01a, 0x019, 0x018, 0x017, 0x017, - 0x016, 0x015, 0x014, 0x014, 0x013, 0x012, 0x011, 0x011, - 0x010, 0x00f, 0x00f, 0x00e, 0x00d, 0x00d, 0x00c, 0x00c, - 0x00b, 0x00a, 0x00a, 0x009, 0x009, 0x008, 0x008, 0x007, - 0x007, 0x007, 0x006, 0x006, 0x005, 0x005, 0x005, 0x004, - 0x004, 0x004, 0x003, 0x003, 0x003, 0x002, 0x002, 0x002, - 0x002, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, - 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000 -}; - -/* exp table */ -static const uint16_t exprom[256] = { - 0x7fa, 0x7f5, 0x7ef, 0x7ea, 0x7e4, 0x7df, 0x7da, 0x7d4, - 0x7cf, 0x7c9, 0x7c4, 0x7bf, 0x7b9, 0x7b4, 0x7ae, 0x7a9, - 0x7a4, 0x79f, 0x799, 0x794, 0x78f, 0x78a, 0x784, 0x77f, - 0x77a, 0x775, 0x770, 0x76a, 0x765, 0x760, 0x75b, 0x756, - 0x751, 0x74c, 0x747, 0x742, 0x73d, 0x738, 0x733, 0x72e, - 0x729, 0x724, 0x71f, 0x71a, 0x715, 0x710, 0x70b, 0x706, - 0x702, 0x6fd, 0x6f8, 0x6f3, 0x6ee, 0x6e9, 0x6e5, 0x6e0, - 0x6db, 0x6d6, 0x6d2, 0x6cd, 0x6c8, 0x6c4, 0x6bf, 0x6ba, - 0x6b5, 0x6b1, 0x6ac, 0x6a8, 0x6a3, 0x69e, 0x69a, 0x695, - 0x691, 0x68c, 0x688, 0x683, 0x67f, 0x67a, 0x676, 0x671, - 0x66d, 0x668, 0x664, 0x65f, 0x65b, 0x657, 0x652, 0x64e, - 0x649, 0x645, 0x641, 0x63c, 0x638, 0x634, 0x630, 0x62b, - 0x627, 0x623, 0x61e, 0x61a, 0x616, 0x612, 0x60e, 0x609, - 0x605, 0x601, 0x5fd, 0x5f9, 0x5f5, 0x5f0, 0x5ec, 0x5e8, - 0x5e4, 0x5e0, 0x5dc, 0x5d8, 0x5d4, 0x5d0, 0x5cc, 0x5c8, - 0x5c4, 0x5c0, 0x5bc, 0x5b8, 0x5b4, 0x5b0, 0x5ac, 0x5a8, - 0x5a4, 0x5a0, 0x59c, 0x599, 0x595, 0x591, 0x58d, 0x589, - 0x585, 0x581, 0x57e, 0x57a, 0x576, 0x572, 0x56f, 0x56b, - 0x567, 0x563, 0x560, 0x55c, 0x558, 0x554, 0x551, 0x54d, - 0x549, 0x546, 0x542, 0x53e, 0x53b, 0x537, 0x534, 0x530, - 0x52c, 0x529, 0x525, 0x522, 0x51e, 0x51b, 0x517, 0x514, - 0x510, 0x50c, 0x509, 0x506, 0x502, 0x4ff, 0x4fb, 0x4f8, - 0x4f4, 0x4f1, 0x4ed, 0x4ea, 0x4e7, 0x4e3, 0x4e0, 0x4dc, - 0x4d9, 0x4d6, 0x4d2, 0x4cf, 0x4cc, 0x4c8, 0x4c5, 0x4c2, - 0x4be, 0x4bb, 0x4b8, 0x4b5, 0x4b1, 0x4ae, 0x4ab, 0x4a8, - 0x4a4, 0x4a1, 0x49e, 0x49b, 0x498, 0x494, 0x491, 0x48e, - 0x48b, 0x488, 0x485, 0x482, 0x47e, 0x47b, 0x478, 0x475, - 0x472, 0x46f, 0x46c, 0x469, 0x466, 0x463, 0x460, 0x45d, - 0x45a, 0x457, 0x454, 0x451, 0x44e, 0x44b, 0x448, 0x445, - 0x442, 0x43f, 0x43c, 0x439, 0x436, 0x433, 0x430, 0x42d, - 0x42a, 0x428, 0x425, 0x422, 0x41f, 0x41c, 0x419, 0x416, - 0x414, 0x411, 0x40e, 0x40b, 0x408, 0x406, 0x403, 0x400 -}; - -static const opll_patch_t patch_ds1001[opll_patch_max] = { - { 0x05, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x08 },{ 0x08, 0x01 },{ 0x04, 0x02 },{ 0x02, 0x07 } }, - { 0x14, 0x00, 0x01, 0x05,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x0f },{ 0x08, 0x06 },{ 0x02, 0x01 },{ 0x03, 0x02 } }, - { 0x08, 0x00, 0x01, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0b },{ 0x0a, 0x02 },{ 0x02, 0x01 },{ 0x00, 0x02 } }, - { 0x0c, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x06, 0x02 },{ 0x01, 0x07 } }, - { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x01, 0x06 },{ 0x00, 0x02 },{ 0x01, 0x08 } }, - { 0x06, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x0e },{ 0x03, 0x02 },{ 0x0f, 0x0f },{ 0x04, 0x04 } }, - { 0x1d, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x07 } }, - { 0x22, 0x01, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x07 },{ 0x02, 0x02 },{ 0x00, 0x01 },{ 0x01, 0x07 } }, - { 0x25, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x05, 0x01 },{ 0x00, 0x00 },{ 0x04, 0x07 },{ 0x00, 0x03 },{ 0x07, 0x00 },{ 0x02, 0x01 } }, - { 0x0f, 0x00, 0x01, 0x07,{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x00 },{ 0x05, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x0a },{ 0x08, 0x05 },{ 0x05, 0x00 },{ 0x01, 0x02 } }, - { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x02, 0x02 } }, - { 0x11, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x03 },{ 0x00, 0x00 },{ 0x06, 0x07 },{ 0x05, 0x04 },{ 0x01, 0x01 },{ 0x08, 0x06 } }, - { 0x13, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x02 },{ 0x03, 0x00 },{ 0x0c, 0x09 },{ 0x09, 0x05 },{ 0x00, 0x00 },{ 0x03, 0x02 } }, - { 0x0c, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x03 },{ 0x00, 0x00 },{ 0x09, 0x0c },{ 0x04, 0x00 },{ 0x03, 0x0f },{ 0x03, 0x06 } }, - { 0x0d, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x01, 0x02 },{ 0x00, 0x00 },{ 0x0c, 0x0d },{ 0x01, 0x05 },{ 0x05, 0x00 },{ 0x06, 0x06 } }, - - { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x08 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } -}; - -static const opll_patch_t patch_ym2413[opll_patch_max] = { - { 0x1e, 0x01, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x07 },{ 0x00, 0x08 },{ 0x00, 0x01 },{ 0x00, 0x07 } }, - { 0x1a, 0x00, 0x01, 0x05,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x0f },{ 0x08, 0x07 },{ 0x02, 0x01 },{ 0x03, 0x03 } }, - { 0x19, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0c },{ 0x02, 0x04 },{ 0x01, 0x02 },{ 0x01, 0x03 } }, - { 0x0e, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x07, 0x02 },{ 0x00, 0x07 } }, - { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x00, 0x06 },{ 0x00, 0x02 },{ 0x00, 0x08 } }, - { 0x16, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x02 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x08 } }, - { 0x1d, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x07 } }, - { 0x2d, 0x01, 0x00, 0x04,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x07 },{ 0x02, 0x02 },{ 0x00, 0x00 },{ 0x00, 0x07 } }, - { 0x1b, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x06, 0x06 },{ 0x04, 0x05 },{ 0x01, 0x01 },{ 0x00, 0x07 } }, - { 0x0b, 0x01, 0x01, 0x00,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x0f },{ 0x05, 0x07 },{ 0x07, 0x00 },{ 0x01, 0x07 } }, - { 0x03, 0x01, 0x00, 0x01,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0e },{ 0x0a, 0x04 },{ 0x01, 0x00 },{ 0x00, 0x04 } }, - { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x02, 0x02 } }, - { 0x0c, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x0f },{ 0x02, 0x05 },{ 0x02, 0x04 },{ 0x00, 0x02 } }, - { 0x15, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x0c, 0x09 },{ 0x09, 0x05 },{ 0x00, 0x00 },{ 0x03, 0x02 } }, - { 0x09, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0e },{ 0x01, 0x04 },{ 0x04, 0x01 },{ 0x00, 0x03 } }, - - { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } -}; - -static const opll_patch_t patch_ymf281[opll_patch_max] = { - { 0x1a, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x06 },{ 0x0f, 0x07 },{ 0x00, 0x01 },{ 0x00, 0x06 } }, - { 0x05, 0x00, 0x00, 0x01,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x0f, 0x08 },{ 0x06, 0x03 },{ 0x08, 0x00 },{ 0x00, 0x03 } }, - { 0x16, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0d },{ 0x02, 0x03 },{ 0x01, 0x00 },{ 0x01, 0x03 } }, - { 0x0b, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x07, 0x01 },{ 0x00, 0x07 } }, - { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x01, 0x06 },{ 0x00, 0x02 },{ 0x00, 0x08 } }, - { 0x02, 0x00, 0x01, 0x06,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x02, 0x00 },{ 0x09, 0x06 },{ 0x0a, 0x01 },{ 0x02, 0x02 },{ 0x00, 0x07 } }, - { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x04, 0x03 },{ 0x01, 0x00 },{ 0x00, 0x07 } }, - { 0x0a, 0x00, 0x00, 0x02,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x07, 0x02 },{ 0x03, 0x00 },{ 0x06, 0x06 },{ 0x06, 0x04 },{ 0x04, 0x02 },{ 0x00, 0x07 } }, - { 0x07, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0c, 0x07 },{ 0x05, 0x07 },{ 0x05, 0x00 },{ 0x01, 0x07 } }, - { 0x1e, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x00 },{ 0x06, 0x01 },{ 0x01, 0x00 },{ 0x0f, 0x0f },{ 0x02, 0x03 },{ 0x0f, 0x0f },{ 0x00, 0x03 } }, - { 0x18, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x0e },{ 0x05, 0x03 },{ 0x02, 0x01 },{ 0x00, 0x03 } }, - { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x00 },{ 0x02, 0x03 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x05, 0x04 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x0f, 0x03 },{ 0x07, 0x0f },{ 0x00, 0x05 } }, - { 0x03, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x0f, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0e },{ 0x0c, 0x03 },{ 0x03, 0x0f },{ 0x0f, 0x0c } }, - { 0x00, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x01 },{ 0x00, 0x00 },{ 0x0b, 0x08 },{ 0x0f, 0x04 },{ 0x00, 0x0f },{ 0x00, 0x05 } }, - - { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } -}; - -static const opll_patch_t patch_ym2423[opll_patch_max] = { - { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x09, 0x05 },{ 0x04, 0x04 },{ 0x01, 0x00 },{ 0x00, 0x05 } }, - { 0x12, 0x00, 0x00, 0x04,{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x01 },{ 0x01, 0x00 },{ 0x0f, 0x0f },{ 0x03, 0x02 },{ 0x0a, 0x0e },{ 0x00, 0x09 } }, - { 0x11, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x02 },{ 0x0f, 0x0f },{ 0x02, 0x02 },{ 0x05, 0x07 },{ 0x00, 0x05 } }, - { 0x28, 0x00, 0x00, 0x07,{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x02 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x03, 0x02 },{ 0x09, 0x0b },{ 0x00, 0x04 } }, - { 0x17, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x02, 0x01 },{ 0x02, 0x00 },{ 0x05, 0x06 },{ 0x01, 0x0f },{ 0x07, 0x00 },{ 0x00, 0x09 } }, - { 0x18, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x07, 0x04 },{ 0x05, 0x08 },{ 0x00, 0x05 } }, - { 0x1c, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x05, 0x07 },{ 0x01, 0x01 },{ 0x02, 0x02 },{ 0x00, 0x06 } }, - { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x04 },{ 0x00, 0x00 },{ 0x07, 0x03 },{ 0x03, 0x0f },{ 0x00, 0x00 },{ 0x00, 0x06 } }, - { 0x0d, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x04, 0x06 },{ 0x02, 0x0f },{ 0x02, 0x00 },{ 0x00, 0x06 } }, - { 0x10, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x02 },{ 0x0f, 0x0f },{ 0x03, 0x03 },{ 0x02, 0x00 },{ 0x00, 0x04 } }, - { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0c, 0x09 },{ 0x05, 0x06 },{ 0x0f, 0x0f },{ 0x00, 0x06 } }, - { 0x1b, 0x00, 0x00, 0x00,{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x09, 0x01 },{ 0x03, 0x00 },{ 0x0f, 0x0f },{ 0x05, 0x03 },{ 0x07, 0x0f },{ 0x00, 0x02 } }, - { 0x11, 0x00, 0x00, 0x03,{ 0x00, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x02 },{ 0x02, 0x00 },{ 0x09, 0x0b },{ 0x04, 0x01 },{ 0x0e, 0x0f },{ 0x00, 0x07 } }, - { 0x17, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x0e },{ 0x03, 0x01 },{ 0x0b, 0x0e },{ 0x00, 0x0b } }, - { 0x0d, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x06 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x02, 0x04 },{ 0x02, 0x09 },{ 0x00, 0x09 } }, - - { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, - { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } -}; - -static const uint32_t ch_offset[18] = { - 1, 2, 0, 1, 2, 3, 4, 5, 3, 4, 5, 6, 7, 8, 6, 7, 8, 0 -}; - -static const uint32_t pg_multi[16] = { - 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 20, 24, 24, 30, 30 -}; - -static const uint32_t eg_stephi[4][4] = { - { 0, 0, 0, 0 }, - { 1, 0, 0, 0 }, - { 1, 0, 1, 0 }, - { 1, 1, 1, 0 } -}; - -static const uint32_t eg_ksltable[16] = { - 0, 32, 40, 45, 48, 51, 53, 55, 56, 58, 59, 60, 61, 62, 63, 64 -}; - -static void OPLL_DoIO(opll_t *chip) { - /* Write signal check */ - chip->write_a_en = (chip->write_a & 0x03) == 0x01; - chip->write_d_en = (chip->write_d & 0x03) == 0x01; - chip->write_a <<= 1; - chip->write_d <<= 1; -} - -static void OPLL_DoModeWrite(opll_t *chip) { - if ((chip->write_mode_address & 0x10) && chip->write_d_en) { - uint8_t slot = chip->write_mode_address & 0x01; - switch (chip->write_mode_address & 0x0f) { - case 0x00: - case 0x01: - chip->patch.multi[slot] = chip->write_data & 0x0f; - chip->patch.ksr[slot] = (chip->write_data >> 4) & 0x01; - chip->patch.et[slot] = (chip->write_data >> 5) & 0x01; - chip->patch.vib[slot] = (chip->write_data >> 6) & 0x01; - chip->patch.am[slot] = (chip->write_data >> 7) & 0x01; - break; - case 0x02: - chip->patch.ksl[0] = (chip->write_data >> 6) & 0x03; - chip->patch.tl = chip->write_data & 0x3f; - break; - case 0x03: - chip->patch.ksl[1] = (chip->write_data >> 6) & 0x03; - chip->patch.dc = (chip->write_data >> 4) & 0x01; - chip->patch.dm = (chip->write_data >> 3) & 0x01; - chip->patch.fb = chip->write_data & 0x07; - break; - case 0x04: - case 0x05: - chip->patch.dr[slot] = chip->write_data & 0x0f; - chip->patch.ar[slot] = (chip->write_data >> 4) & 0x0f; - break; - case 0x06: - case 0x07: - chip->patch.rr[slot] = chip->write_data & 0x0f; - chip->patch.sl[slot] = (chip->write_data >> 4) & 0x0f; - break; - case 0x0e: - chip->rhythm = chip->write_data & 0x3f; - if (chip->chip_type == opll_type_ds1001) { - chip->rhythm |= 0x20; - } - chip->rm_enable = (chip->rm_enable & 0x7f) | ((chip->rhythm << 2) & 0x80); - break; - case 0x0f: - chip->testmode = chip->write_data & 0x0f; - break; - } - } -} - -void OPLL_Reset(opll_t *chip, uint32_t chip_type) { - uint32_t i; - memset(chip, 0, sizeof(opll_t)); - chip->chip_type = chip_type; - if (chip_type == opll_type_ds1001) { - /* Rhythm mode is always on */ - chip->rhythm = 0x20; - chip->rm_enable = (int8_t)0x80; - } - switch (chip_type) { - case opll_type_ds1001: - chip->patchrom = patch_ds1001; - break; - case opll_type_ymf281: - case opll_type_ymf281b: - chip->patchrom = patch_ymf281; - break; - case opll_type_ym2423: - chip->patchrom = patch_ym2423; - break; - case opll_type_ym2413: - case opll_type_ym2413b: - case opll_type_ym2420: - default: - chip->patchrom = patch_ym2413; - break; - } - for (i = 0; i < 18; i++) { - chip->eg_state[i] = eg_num_release; - chip->eg_level[i] = 0x7f; - chip->eg_out = 0x7f; - } - chip->rm_select = rm_num_tc + 1; -} - -static void OPLL_DoRegWrite(opll_t *chip) { - /* Address */ - if (chip->write_a_en) { - if ((chip->write_data & 0xc0) == 0x00) { - /* FM Write */ - chip->write_fm_address = 1; - chip->address = chip->write_data; - } else { - chip->write_fm_address = 0; - } - } - /* Data */ - if (chip->write_fm_address && chip->write_d_en) { - chip->data = chip->write_data; - } - - /* Update registers */ - if (chip->write_fm_data && !chip->write_a_en) { - if ((chip->address & 0x0f) == chip->cycles && chip->cycles < 16) { - uint32_t channel = chip->cycles % 9; - switch (chip->address & 0xf0) { - case 0x10: - if (chip->chip_type == opll_type_ym2420) - { - chip->fnum[channel] = (chip->fnum[channel] & 0x0f) | ((chip->data & 0x1f) << 4); - chip->block[channel] = (chip->data >> 5) & 0x07; - } - else - chip->fnum[channel] = (chip->fnum[channel] & 0x100) | chip->data; - break; - case 0x20: - if (chip->chip_type == opll_type_ym2420) - chip->fnum[channel] = (chip->fnum[channel] & 0x1f0) | (chip->data & 0x0f); - else - { - chip->fnum[channel] = (chip->fnum[channel] & 0xff) | ((chip->data & 0x01) << 8); - chip->block[channel] = (chip->data >> 1) & 0x07; - } - chip->kon[channel] = (chip->data >> 4) & 0x01; - chip->son[channel] = (chip->data >> 5) & 0x01; - break; - case 0x30: - chip->vol[channel] = chip->data & 0x0f; - chip->inst[channel] = (chip->data >> 4) & 0x0f; - break; - } - } - } - - - if (chip->write_a_en) { - chip->write_fm_data = 0; - } - if (chip->write_fm_address && chip->write_d_en) { - chip->write_fm_data = 1; - } - if (chip->write_a_en) { - if (((chip->write_data & 0xf0) == 0x00)) { - chip->write_mode_address = 0x10 | (chip->write_data & 0x0f); - } else { - chip->write_mode_address = 0x00; - } - } -} - -static void OPLL_PreparePatch1(opll_t *chip) { - uint8_t instr; - uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; - uint32_t instr_index; - uint32_t ch = ch_offset[chip->cycles]; - const opll_patch_t *patch; - instr = chip->inst[ch]; - if (instr > 0) { - instr_index = opll_patch_1 + instr - 1; - } - if (chip->rm_select <= rm_num_tc) { - instr_index = opll_patch_drum_0 + chip->rm_select; - } - if (chip->rm_select <= rm_num_tc || instr > 0) { - patch = &chip->patchrom[instr_index]; - } else { - patch = &chip->patch; - } - if (chip->rm_select == rm_num_hh || chip->rm_select == rm_num_tom) { - chip->c_tl = chip->inst[ch] << 2; - } else if (mcsel == 1) { - chip->c_tl = chip->vol[ch] << 2; - } else { - chip->c_tl = patch->tl; - } - - chip->c_adrr[0] = patch->ar[mcsel]; - chip->c_adrr[1] = patch->dr[mcsel]; - chip->c_adrr[2] = patch->rr[mcsel]; - chip->c_et = patch->et[mcsel]; - chip->c_ksr = patch->ksr[mcsel]; - chip->c_ksl = patch->ksl[mcsel]; - chip->c_ksr_freq = (chip->block[ch] << 1) | (chip->fnum[ch] >> 8); - chip->c_ksl_freq = (chip->fnum[ch]>>5); - chip->c_ksl_block = (chip->block[ch]); -} - -static void OPLL_PreparePatch2(opll_t *chip) { - uint8_t instr; - uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; - uint32_t instr_index; - const opll_patch_t *patch; - instr = chip->inst[ch_offset[chip->cycles]]; - if (instr > 0) { - instr_index = opll_patch_1 + instr - 1; - } - if (chip->rm_select <= rm_num_tc) { - instr_index = opll_patch_drum_0 + chip->rm_select; - } - if (chip->rm_select <= rm_num_tc || instr > 0) { - patch = &chip->patchrom[instr_index]; - } else { - patch = &chip->patch; - } - - chip->c_fnum = chip->fnum[ch_offset[chip->cycles]]; - chip->c_block = chip->block[ch_offset[chip->cycles]]; - - chip->c_multi = patch->multi[mcsel]; - chip->c_sl = patch->sl[mcsel]; - chip->c_fb = patch->fb; - chip->c_vib = patch->vib[mcsel]; - chip->c_am = patch->am[mcsel]; - chip->c_dc <<= 1; - chip->c_dm <<= 1; - chip->c_dc |= patch->dc; - chip->c_dm |= patch->dm; -} - -static void OPLL_PhaseGenerate(opll_t *chip) { - uint32_t ismod; - uint32_t phase; - uint8_t rm_bit; - uint16_t pg_out; - - chip->pg_phase[(chip->cycles + 17) % 18] = chip->pg_phase_next + chip->pg_inc; - - if ((chip->rm_enable & 0x40) && (chip->cycles == 13 || chip->cycles == 14)) { - ismod = 0; - } else { - ismod = ((chip->cycles + 3) / 3) & 1; - } - phase = chip->pg_phase[chip->cycles]; - /* KeyOn event check */ - if ((chip->testmode & 0x04) - || (ismod && (chip->eg_dokon & 0x8000)) || (!ismod && (chip->eg_dokon & 0x01))) { - chip->pg_phase_next = 0; - } else { - chip->pg_phase_next = phase; - } - /* Rhythm mode */ - if (chip->cycles == 13) { - chip->rm_hh_bit2 = (phase >> (2 + 9)) & 1; - chip->rm_hh_bit3 = (phase >> (3 + 9)) & 1; - chip->rm_hh_bit7 = (phase >> (7 + 9)) & 1; - chip->rm_hh_bit8 = (phase >> (8 + 9)) & 1; - } else if (chip->cycles == 17 && (chip->rm_enable & 0x80)) { - chip->rm_tc_bit3 = (phase >> (3 + 9)) & 1; - chip->rm_tc_bit5 = (phase >> (5 + 9)) & 1; - } - if ((chip->rm_enable & 0x80)) { - switch (chip->cycles) { - case 13: - /* HH */ - rm_bit = (chip->rm_hh_bit2 ^ chip->rm_hh_bit7) - | (chip->rm_hh_bit3 ^ chip->rm_tc_bit5) - | (chip->rm_tc_bit3 ^ chip->rm_tc_bit5); - pg_out = rm_bit << 9; - if (rm_bit ^ (chip->rm_noise & 1)) { - pg_out |= 0xd0; - } else { - pg_out |= 0x34; - } - break; - case 16: - /* SD */ - pg_out = (chip->rm_hh_bit8 << 9) - | ((chip->rm_hh_bit8 ^ (chip->rm_noise & 1)) << 8); - break; - case 17: - /* TC */ - rm_bit = (chip->rm_hh_bit2 ^ chip->rm_hh_bit7) - | (chip->rm_hh_bit3 ^ chip->rm_tc_bit5) - | (chip->rm_tc_bit3 ^ chip->rm_tc_bit5); - pg_out = (rm_bit << 9) | 0x100; - break; - default: - pg_out = phase >> 9; - break; - } - } else { - pg_out = phase >> 9; - } - chip->pg_out = pg_out; -} - -static void OPLL_PhaseCalcIncrement(opll_t *chip) { - uint32_t freq; - uint16_t block; - freq = chip->c_fnum << 1; - block = chip->c_block; - /* Apply vibrato */ - if (chip->c_vib) { - switch (chip->lfo_vib_counter) { - case 0: - case 4: - break; - case 1: - case 3: - freq += freq >> 8; - break; - case 2: - freq += freq >> 7; - break; - case 5: - case 7: - freq -= freq >> 8; - break; - case 6: - freq -= freq >> 7; - break; - } - } - /* Apply block */ - freq = (freq << block) >> 1; - - chip->pg_inc = (freq * pg_multi[chip->c_multi]) >> 1; -} - -static void OPLL_EnvelopeKSLTL(opll_t *chip) { - int32_t ksl; - - ksl = eg_ksltable[chip->c_ksl_freq]-((8-chip->c_ksl_block)<<3); - if (ksl < 0) { - ksl = 0; - } - - ksl <<= 1; - - if (chip->c_ksl) { - ksl = ksl >> (3-chip->c_ksl); - } else { - ksl = 0; - } - - chip->eg_ksltl = ksl + (chip->c_tl<<1); -} - -static void OPLL_EnvelopeOutput(opll_t *chip) { - int32_t level = chip->eg_level[(chip->cycles+17)%18]; - - level += chip->eg_ksltl; - - if (chip->c_am) { - level += chip->lfo_am_out; - } - - if (level >= 128) { - level = 127; - } - - if (chip->testmode & 0x01) { - level = 0; - } - - chip->eg_out = level; -} - -static void OPLL_EnvelopeGenerate(opll_t *chip) { - uint8_t timer_inc; - uint8_t timer_bit; - uint8_t timer_low; - uint8_t rate; - uint8_t state_rate; - uint8_t ksr; - uint8_t sum; - uint8_t rate_hi; - uint8_t rate_lo; - int32_t level; - int32_t next_level; - uint8_t zero; - uint8_t state; - uint8_t next_state; - int32_t step; - int32_t sl; - uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; - - - /* EG timer */ - if ((chip->eg_counter_state & 3) != 3) { - timer_inc = 0; - } else if (chip->cycles == 0) { - timer_inc = 1; - } else { - timer_inc = chip->eg_timer_carry; - } - timer_low = chip->eg_timer & 3; - timer_bit = chip->eg_timer & 1; - timer_bit += timer_inc; - chip->eg_timer_carry = timer_bit >> 1; - chip->eg_timer = ((timer_bit & 1) << 17) | (chip->eg_timer >> 1); - if (chip->testmode & 0x08) { - chip->eg_timer &= 0x2ffff; - chip->eg_timer |= (chip->write_data << (16 - 2)) & 0x10000; - } - if (!chip->eg_timer_shift_stop && ((chip->eg_timer >> 16) & 1)) { - chip->eg_timer_shift = chip->cycles; - } - if (chip->cycles == 0 && (chip->eg_counter_state_prev & 1) == 1) { - chip->eg_timer_low_lock = timer_low; - chip->eg_timer_shift_lock = chip->eg_timer_shift; - if (chip->eg_timer_shift_lock > 13) - chip->eg_timer_shift_lock = 0; - - chip->eg_timer_shift = 0; - } - chip->eg_timer_shift_stop |= (chip->eg_timer >> 16) & 1; - if (chip->cycles == 0) { - chip->eg_timer_shift_stop = 0; - } - chip->eg_counter_state_prev = chip->eg_counter_state; - if (chip->cycles == 17) { - chip->eg_counter_state++; - } - - level = chip->eg_level[(chip->cycles+16)%18]; - next_level = level; - zero = level == 0; - chip->eg_silent = level == 0x7f; - - if (chip->eg_state[(chip->cycles+16)%18] != eg_num_attack && (chip->eg_off&2) && !(chip->eg_dokon&2)) { - next_level = 0x7f; - } - - if (chip->eg_maxrate && (chip->eg_dokon&2)) { - next_level = 0x00; - } - - - state = chip->eg_state[(chip->cycles+16)%18]; - next_state = eg_num_attack; - - step = 0; - sl = chip->eg_sl; - - switch (state) { - case eg_num_attack: - if (!chip->eg_maxrate && (chip->eg_kon & 2) && !zero) { - int32_t shift = (chip->eg_rate_hi < 12) ? chip->eg_inc_lo : (chip->eg_rate_hi - 11 + chip->eg_inc_hi); - if (shift > 0) { - step = ~level >> (5 - shift); - } - } - if (zero) { - next_state = eg_num_decay; - } else { - next_state = eg_num_attack; - } - break; - case eg_num_decay: - if (!(chip->eg_off & 2) && !(chip->eg_dokon & 2) && (level >> 3) != sl) - { - uint8_t i0 = chip->eg_rate_hi == 15 || (chip->eg_rate_hi == 14 && chip->eg_inc_hi); - uint8_t i1 = (chip->eg_rate_hi == 14 && !chip->eg_inc_hi) || (chip->eg_rate_hi == 13 && chip->eg_inc_hi) || - (chip->eg_rate_hi == 13 && !chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) - || (chip->eg_rate_hi == 12 && chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) - || (chip->eg_rate_hi == 12 && !chip->eg_inc_hi && ((chip->eg_counter_state_prev & 3) == 3)) - || (chip->eg_inc_lo && ((chip->eg_counter_state_prev & 3) == 3)); - step = (i0<<1) | i1; - } - if ((level >> 3) == sl) { - next_state = eg_num_sustain; - } else { - next_state = eg_num_decay; - } - break; - case eg_num_sustain: - case eg_num_release: - if (!(chip->eg_off & 2) && !(chip->eg_dokon & 2)) - { - uint8_t i0 = chip->eg_rate_hi == 15 || (chip->eg_rate_hi == 14 && chip->eg_inc_hi); - uint8_t i1 = (chip->eg_rate_hi == 14 && !chip->eg_inc_hi) || (chip->eg_rate_hi == 13 && chip->eg_inc_hi) || - (chip->eg_rate_hi == 13 && !chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) - || (chip->eg_rate_hi == 12 && chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) - || (chip->eg_rate_hi == 12 && !chip->eg_inc_hi && ((chip->eg_counter_state_prev & 3) == 3)) - || (chip->eg_inc_lo && ((chip->eg_counter_state_prev & 3) == 3)); - step = (i0<<1) | i1; - } - next_state = state; - break; - } - - if (!(chip->eg_kon & 2)) { - next_state = eg_num_release; - } - if (chip->eg_dokon & 2) { - next_state = eg_num_attack; - } - - chip->eg_level[(chip->cycles+16)%18] = next_level+step; - chip->eg_state[(chip->cycles+16)%18] = next_state; - - rate_hi = chip->eg_rate >> 2; - rate_lo = chip->eg_rate & 3; - chip->eg_inc_hi = eg_stephi[rate_lo][chip->eg_timer_low_lock]; - sum = (chip->eg_timer_shift_lock + rate_hi) & 0x0f; - chip->eg_inc_lo = 0; - if (rate_hi < 12 && !chip->eg_zerorate) { - switch (sum) { - case 12: - chip->eg_inc_lo = 1; - break; - case 13: - chip->eg_inc_lo = (rate_lo >> 1) & 1; - break; - case 14: - chip->eg_inc_lo = rate_lo & 1; - break; - } - } - chip->eg_maxrate = rate_hi == 0x0f; - - chip->eg_rate_hi = rate_hi; - - chip->eg_kon <<= 1; - chip->eg_kon |= chip->kon[ch_offset[chip->cycles]]; - chip->eg_off <<= 1; - chip->eg_off |= (chip->eg_level[chip->cycles] >> 2) == 0x1f; - switch (chip->rm_select) { - case rm_num_bd0: - case rm_num_bd1: - chip->eg_kon |= (chip->rhythm >> 4) & 1; - break; - case rm_num_sd: - chip->eg_kon |= (chip->rhythm >> 3) & 1; - break; - case rm_num_tom: - chip->eg_kon |= (chip->rhythm >> 2) & 1; - break; - case rm_num_tc: - chip->eg_kon |= (chip->rhythm >> 1) & 1; - break; - case rm_num_hh: - chip->eg_kon |= chip->rhythm & 1; - break; - } - - /* Calculate rate */ - rate = 0; - chip->eg_dokon <<= 1; - state_rate = chip->eg_state[chip->cycles]; - if (state_rate == eg_num_release && (chip->eg_kon&1) && (chip->eg_off&1)) { - state_rate = eg_num_attack; - chip->eg_dokon |= 1; - } - switch (state_rate) { - case eg_num_attack: - rate = chip->c_adrr[0]; - break; - case eg_num_decay: - rate = chip->c_adrr[1]; - break; - case eg_num_sustain: - if (!chip->c_et) { - rate = chip->c_adrr[2]; - } - break; - case eg_num_release: - if (chip->son[ch_offset[chip->cycles]]) { - rate = 5; - } else { - rate = chip->c_adrr[2]; - } - break; - } - if (!(chip->eg_kon&1) && !mcsel && chip->rm_select != rm_num_tom && chip->rm_select != rm_num_hh) { - rate = 0; - } - if ((chip->eg_kon&1) && chip->eg_state[chip->cycles] == eg_num_release && !(chip->eg_off&1)) { - rate = 12; - } - if (!(chip->eg_kon&1) && !chip->son[ch_offset[chip->cycles]] && mcsel == 1 && !chip->c_et) { - rate = 7; - } - chip->eg_zerorate = rate == 0; - ksr = chip->c_ksr_freq; - if (!chip->c_ksr) - ksr >>= 2; - chip->eg_rate = (rate << 2) + ksr; - if (chip->eg_rate & 0x40) { - chip->eg_rate = 0x3c | (ksr & 3); - } - chip->eg_sl = chip->c_sl; -} - -static void OPLL_Channel(opll_t *chip) { - int16_t ch_out = chip->ch_out; - uint8_t ismod = (chip->cycles / 3) & 1; - uint8_t mute_m = ismod || ((chip->rm_enable&0x40) && (chip->cycles+15)%18 >= 12); - if (chip->chip_type == opll_type_ds1001) { - chip->output_m = ch_out; - if (chip->output_m >= 0) { - chip->output_m++; - } - if (mute_m) { - chip->output_m = 0; - } - chip->output_r = 0; - return; - } else { - uint8_t mute_r = 1; - /* TODO: This might be incorrect */ - if ((chip->rm_enable & 0x40)) { - switch (chip->cycles) { - case 16: /* HH */ - case 17: /* TOM */ - case 0: /* BD */ - case 1: /* SD */ - case 2: /* TC */ - case 3: /* HH */ - case 4: /* TOM */ - case 5: /* BD */ - case 9: /* TOM */ - case 10: /* TOM */ - mute_r = 0; - break; - } - } - if (chip->chip_type == opll_type_ym2413b || chip->chip_type == opll_type_ymf281b) { - if (mute_m) - chip->output_m = 0; - else - chip->output_m = ch_out; - if (mute_r) - chip->output_r = 0; - else - chip->output_r = ch_out; - } else { - int16_t sign = ch_out >> 8; - if (ch_out >= 0) { - ch_out++; - sign++; - } - if (mute_m) - chip->output_m = sign; - else - chip->output_m = ch_out; - if (mute_r) - chip->output_r = sign; - else - chip->output_r = ch_out; - } - } -} - -static void OPLL_Operator(opll_t *chip) { - uint8_t ismod1, ismod2, ismod3; - uint32_t op_mod; - uint16_t exp_shift; - int16_t output; - uint32_t level; - uint32_t phase; - int16_t routput; - if ((chip->rm_enable & 0x80) && (chip->cycles == 15 || chip->cycles == 16)) { - ismod1 = 0; - } else { - ismod1 = ((chip->cycles + 1) / 3) & 1; - } - if ((chip->rm_enable & 0x40) && (chip->cycles == 13 || chip->cycles == 14)) { - ismod2 = 0; - } else { - ismod2 = ((chip->cycles + 3) / 3) & 1; - } - if ((chip->rm_enable & 0x40) && (chip->cycles == 16 || chip->cycles == 17)) { - ismod3 = 0; - } else { - ismod3 = (chip->cycles / 3) & 1; - } - - op_mod = 0; - - if (ismod3) { - op_mod |= chip->op_mod << 1; - } - - if (ismod2 && chip->c_fb) { - op_mod |= chip->op_fbsum >> (7 - chip->c_fb); - } - - exp_shift = chip->op_exp_s; - if (chip->eg_silent || ((chip->op_neg&2) && (ismod1 ? (chip->c_dm&4) : (chip->c_dc&4)))) { - exp_shift |= 12; - } - - output = chip->op_exp_m>>exp_shift; - if (!chip->eg_silent && (chip->op_neg&2)) { - output = ~output; - } - - level = chip->op_logsin+(chip->eg_out<<4); - if (level >= 4096) { - level = 4095; - } - - chip->op_exp_m = exprom[level & 0xff]; - chip->op_exp_s = level >> 8; - - phase = (op_mod + chip->pg_out) & 0x3ff; - if (phase & 0x100) { - phase ^= 0xff; - } - chip->op_logsin = logsinrom[phase & 0xff]; - chip->op_neg <<= 1; - chip->op_neg |= phase >> 9; - chip->op_fbsum = (chip->op_fb1[(chip->cycles + 3) % 9] + chip->op_fb2[(chip->cycles + 3) % 9]) >> 1; - - if (ismod1) { - chip->op_fb2[chip->cycles%9] = chip->op_fb1[chip->cycles%9]; - chip->op_fb1[chip->cycles%9] = output; - } - chip->op_mod = output&0x1ff; - - if (chip->chip_type == opll_type_ds1001) { - routput = 0; - } else { - switch (chip->cycles) { - case 2: - routput = chip->ch_out_hh; - break; - case 3: - routput = chip->ch_out_tm; - break; - case 4: - routput = chip->ch_out_bd; - break; - case 8: - routput = chip->ch_out_sd; - break; - case 9: - routput = chip->ch_out_tc; - break; - default: - routput = 0; /* TODO: Not quite true */ - break; - } - switch (chip->cycles) { - case 15: - chip->ch_out_hh = output>>3; - break; - case 16: - chip->ch_out_tm = output>>3; - break; - case 17: - chip->ch_out_bd = output>>3; - break; - case 0: - chip->ch_out_sd = output>>3; - break; - case 1: - chip->ch_out_tc = output>>3; - break; - default: - break; - } - } - - chip->ch_out = ismod1 ? routput : (output>>3); -} - -static void OPLL_DoRhythm(opll_t *chip) { - uint8_t nbit; - - /* Noise */ - nbit = (chip->rm_noise ^ (chip->rm_noise >> 14)) & 0x01; - nbit |= (chip->rm_noise == 0x00) | ((chip->testmode >> 1) & 0x01); - chip->rm_noise = (nbit << 22) | (chip->rm_noise >> 1); -} - -static void OPLL_DoLFO(opll_t *chip) { - uint8_t am_inc = 0; - uint8_t am_bit; - - /* Update counter */ - if (chip->cycles == 17) { - uint8_t vib_step = ((chip->lfo_counter & 0x3ff) + 1) >> 10; - chip->lfo_am_step = ((chip->lfo_counter & 0x3f) + 1) >> 6; - vib_step |= (chip->testmode >> 3) & 0x01; - chip->lfo_vib_counter += vib_step; - chip->lfo_vib_counter &= 0x07; - chip->lfo_counter++; - } - - /* LFO AM */ - if ((chip->lfo_am_step || (chip->testmode & 0x08)) && chip->cycles < 9) { - am_inc = chip->lfo_am_dir | (chip->cycles == 0); - } - - if (chip->cycles >= 9) { - chip->lfo_am_car = 0; - } - - if (chip->cycles == 0) { - if (chip->lfo_am_dir && (chip->lfo_am_counter & 0x7f) == 0) { - chip->lfo_am_dir = 0; - } else if (!chip->lfo_am_dir && (chip->lfo_am_counter & 0x69) == 0x69) { - chip->lfo_am_dir = 1; - } - } - - am_bit = chip->lfo_am_counter & 0x01; - am_bit += am_inc + chip->lfo_am_car; - chip->lfo_am_car = am_bit >> 1; - am_bit &= 0x01; - chip->lfo_am_counter = (am_bit << 8) | (chip->lfo_am_counter >> 1); - - - /* Reset LFO */ - if (chip->testmode & 0x02) { - chip->lfo_vib_counter = 0; - chip->lfo_counter = 0; - chip->lfo_am_dir = 0; - chip->lfo_am_counter &= 0xff; - } -} - - -void OPLL_Clock(opll_t *chip, int32_t *buffer) { - buffer[0] = chip->output_m; - buffer[1] = chip->output_r; - if (chip->cycles == 0) { - chip->lfo_am_out = (chip->lfo_am_counter >> 3) & 0x0f; - } - chip->rm_enable >>= 1; - OPLL_DoModeWrite(chip); - chip->rm_select++; - if (chip->rm_select > rm_num_tc) { - chip->rm_select = rm_num_tc + 1; - } - if (chip->cycles == 11 && (chip->rm_enable & 0x80) == 0x80) { - chip->rm_select = rm_num_bd0; - } - OPLL_PreparePatch1(chip); - - OPLL_Channel(chip); - - OPLL_PhaseGenerate(chip); - - OPLL_Operator(chip); - - OPLL_PhaseCalcIncrement(chip); - - OPLL_EnvelopeOutput(chip); - OPLL_EnvelopeKSLTL(chip); - OPLL_EnvelopeGenerate(chip); - - OPLL_DoLFO(chip); - OPLL_DoRhythm(chip); - OPLL_PreparePatch2(chip); - OPLL_DoRegWrite(chip); - OPLL_DoIO(chip); - chip->cycles = (chip->cycles + 1) % 18; -} - - -void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data) { - chip->write_data = data; - if (port & 1) { - /* Data */ - chip->write_d |= 1; - } else { - /* Address */ - chip->write_a |= 1; - } -} +/* + * Copyright (C) 2019-2023 Nuke.YKT + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Yamaha YM2413 emulator + * Thanks: + * siliconpr0n.org(digshadow, John McMaster): + * VRC VII decap and die shot. + * + * version: 1.0.2 + */ + +#include +#include "opll.h" + +enum { + eg_num_attack = 0, + eg_num_decay = 1, + eg_num_sustain = 2, + eg_num_release = 3 +}; + +enum { + rm_num_bd0 = 0, + rm_num_hh = 1, + rm_num_tom = 2, + rm_num_bd1 = 3, + rm_num_sd = 4, + rm_num_tc = 5 +}; + +/* logsin table */ +static const uint16_t logsinrom[256] = { + 0x859, 0x6c3, 0x607, 0x58b, 0x52e, 0x4e4, 0x4a6, 0x471, + 0x443, 0x41a, 0x3f5, 0x3d3, 0x3b5, 0x398, 0x37e, 0x365, + 0x34e, 0x339, 0x324, 0x311, 0x2ff, 0x2ed, 0x2dc, 0x2cd, + 0x2bd, 0x2af, 0x2a0, 0x293, 0x286, 0x279, 0x26d, 0x261, + 0x256, 0x24b, 0x240, 0x236, 0x22c, 0x222, 0x218, 0x20f, + 0x206, 0x1fd, 0x1f5, 0x1ec, 0x1e4, 0x1dc, 0x1d4, 0x1cd, + 0x1c5, 0x1be, 0x1b7, 0x1b0, 0x1a9, 0x1a2, 0x19b, 0x195, + 0x18f, 0x188, 0x182, 0x17c, 0x177, 0x171, 0x16b, 0x166, + 0x160, 0x15b, 0x155, 0x150, 0x14b, 0x146, 0x141, 0x13c, + 0x137, 0x133, 0x12e, 0x129, 0x125, 0x121, 0x11c, 0x118, + 0x114, 0x10f, 0x10b, 0x107, 0x103, 0x0ff, 0x0fb, 0x0f8, + 0x0f4, 0x0f0, 0x0ec, 0x0e9, 0x0e5, 0x0e2, 0x0de, 0x0db, + 0x0d7, 0x0d4, 0x0d1, 0x0cd, 0x0ca, 0x0c7, 0x0c4, 0x0c1, + 0x0be, 0x0bb, 0x0b8, 0x0b5, 0x0b2, 0x0af, 0x0ac, 0x0a9, + 0x0a7, 0x0a4, 0x0a1, 0x09f, 0x09c, 0x099, 0x097, 0x094, + 0x092, 0x08f, 0x08d, 0x08a, 0x088, 0x086, 0x083, 0x081, + 0x07f, 0x07d, 0x07a, 0x078, 0x076, 0x074, 0x072, 0x070, + 0x06e, 0x06c, 0x06a, 0x068, 0x066, 0x064, 0x062, 0x060, + 0x05e, 0x05c, 0x05b, 0x059, 0x057, 0x055, 0x053, 0x052, + 0x050, 0x04e, 0x04d, 0x04b, 0x04a, 0x048, 0x046, 0x045, + 0x043, 0x042, 0x040, 0x03f, 0x03e, 0x03c, 0x03b, 0x039, + 0x038, 0x037, 0x035, 0x034, 0x033, 0x031, 0x030, 0x02f, + 0x02e, 0x02d, 0x02b, 0x02a, 0x029, 0x028, 0x027, 0x026, + 0x025, 0x024, 0x023, 0x022, 0x021, 0x020, 0x01f, 0x01e, + 0x01d, 0x01c, 0x01b, 0x01a, 0x019, 0x018, 0x017, 0x017, + 0x016, 0x015, 0x014, 0x014, 0x013, 0x012, 0x011, 0x011, + 0x010, 0x00f, 0x00f, 0x00e, 0x00d, 0x00d, 0x00c, 0x00c, + 0x00b, 0x00a, 0x00a, 0x009, 0x009, 0x008, 0x008, 0x007, + 0x007, 0x007, 0x006, 0x006, 0x005, 0x005, 0x005, 0x004, + 0x004, 0x004, 0x003, 0x003, 0x003, 0x002, 0x002, 0x002, + 0x002, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, + 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000 +}; + +/* exp table */ +static const uint16_t exprom[256] = { + 0x7fa, 0x7f5, 0x7ef, 0x7ea, 0x7e4, 0x7df, 0x7da, 0x7d4, + 0x7cf, 0x7c9, 0x7c4, 0x7bf, 0x7b9, 0x7b4, 0x7ae, 0x7a9, + 0x7a4, 0x79f, 0x799, 0x794, 0x78f, 0x78a, 0x784, 0x77f, + 0x77a, 0x775, 0x770, 0x76a, 0x765, 0x760, 0x75b, 0x756, + 0x751, 0x74c, 0x747, 0x742, 0x73d, 0x738, 0x733, 0x72e, + 0x729, 0x724, 0x71f, 0x71a, 0x715, 0x710, 0x70b, 0x706, + 0x702, 0x6fd, 0x6f8, 0x6f3, 0x6ee, 0x6e9, 0x6e5, 0x6e0, + 0x6db, 0x6d6, 0x6d2, 0x6cd, 0x6c8, 0x6c4, 0x6bf, 0x6ba, + 0x6b5, 0x6b1, 0x6ac, 0x6a8, 0x6a3, 0x69e, 0x69a, 0x695, + 0x691, 0x68c, 0x688, 0x683, 0x67f, 0x67a, 0x676, 0x671, + 0x66d, 0x668, 0x664, 0x65f, 0x65b, 0x657, 0x652, 0x64e, + 0x649, 0x645, 0x641, 0x63c, 0x638, 0x634, 0x630, 0x62b, + 0x627, 0x623, 0x61e, 0x61a, 0x616, 0x612, 0x60e, 0x609, + 0x605, 0x601, 0x5fd, 0x5f9, 0x5f5, 0x5f0, 0x5ec, 0x5e8, + 0x5e4, 0x5e0, 0x5dc, 0x5d8, 0x5d4, 0x5d0, 0x5cc, 0x5c8, + 0x5c4, 0x5c0, 0x5bc, 0x5b8, 0x5b4, 0x5b0, 0x5ac, 0x5a8, + 0x5a4, 0x5a0, 0x59c, 0x599, 0x595, 0x591, 0x58d, 0x589, + 0x585, 0x581, 0x57e, 0x57a, 0x576, 0x572, 0x56f, 0x56b, + 0x567, 0x563, 0x560, 0x55c, 0x558, 0x554, 0x551, 0x54d, + 0x549, 0x546, 0x542, 0x53e, 0x53b, 0x537, 0x534, 0x530, + 0x52c, 0x529, 0x525, 0x522, 0x51e, 0x51b, 0x517, 0x514, + 0x510, 0x50c, 0x509, 0x506, 0x502, 0x4ff, 0x4fb, 0x4f8, + 0x4f4, 0x4f1, 0x4ed, 0x4ea, 0x4e7, 0x4e3, 0x4e0, 0x4dc, + 0x4d9, 0x4d6, 0x4d2, 0x4cf, 0x4cc, 0x4c8, 0x4c5, 0x4c2, + 0x4be, 0x4bb, 0x4b8, 0x4b5, 0x4b1, 0x4ae, 0x4ab, 0x4a8, + 0x4a4, 0x4a1, 0x49e, 0x49b, 0x498, 0x494, 0x491, 0x48e, + 0x48b, 0x488, 0x485, 0x482, 0x47e, 0x47b, 0x478, 0x475, + 0x472, 0x46f, 0x46c, 0x469, 0x466, 0x463, 0x460, 0x45d, + 0x45a, 0x457, 0x454, 0x451, 0x44e, 0x44b, 0x448, 0x445, + 0x442, 0x43f, 0x43c, 0x439, 0x436, 0x433, 0x430, 0x42d, + 0x42a, 0x428, 0x425, 0x422, 0x41f, 0x41c, 0x419, 0x416, + 0x414, 0x411, 0x40e, 0x40b, 0x408, 0x406, 0x403, 0x400 +}; + +static const opll_patch_t patch_ds1001[opll_patch_max] = { + { 0x05, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x08 },{ 0x08, 0x01 },{ 0x04, 0x02 },{ 0x02, 0x07 } }, + { 0x14, 0x00, 0x01, 0x05,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x0f },{ 0x08, 0x06 },{ 0x02, 0x01 },{ 0x03, 0x02 } }, + { 0x08, 0x00, 0x01, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0b },{ 0x0a, 0x02 },{ 0x02, 0x01 },{ 0x00, 0x02 } }, + { 0x0c, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x06, 0x02 },{ 0x01, 0x07 } }, + { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x01, 0x06 },{ 0x00, 0x02 },{ 0x01, 0x08 } }, + { 0x06, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x0e },{ 0x03, 0x02 },{ 0x0f, 0x0f },{ 0x04, 0x04 } }, + { 0x1d, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x07 } }, + { 0x22, 0x01, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x07 },{ 0x02, 0x02 },{ 0x00, 0x01 },{ 0x01, 0x07 } }, + { 0x25, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x05, 0x01 },{ 0x00, 0x00 },{ 0x04, 0x07 },{ 0x00, 0x03 },{ 0x07, 0x00 },{ 0x02, 0x01 } }, + { 0x0f, 0x00, 0x01, 0x07,{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x00 },{ 0x05, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x0a },{ 0x08, 0x05 },{ 0x05, 0x00 },{ 0x01, 0x02 } }, + { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x02, 0x02 } }, + { 0x11, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x03 },{ 0x00, 0x00 },{ 0x06, 0x07 },{ 0x05, 0x04 },{ 0x01, 0x01 },{ 0x08, 0x06 } }, + { 0x13, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x02 },{ 0x03, 0x00 },{ 0x0c, 0x09 },{ 0x09, 0x05 },{ 0x00, 0x00 },{ 0x03, 0x02 } }, + { 0x0c, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x03 },{ 0x00, 0x00 },{ 0x09, 0x0c },{ 0x04, 0x00 },{ 0x03, 0x0f },{ 0x03, 0x06 } }, + { 0x0d, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x01, 0x02 },{ 0x00, 0x00 },{ 0x0c, 0x0d },{ 0x01, 0x05 },{ 0x05, 0x00 },{ 0x06, 0x06 } }, + + { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } +}; + +static const opll_patch_t patch_ym2413[opll_patch_max] = { + { 0x1e, 0x01, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x07 },{ 0x00, 0x08 },{ 0x00, 0x01 },{ 0x00, 0x07 } }, + { 0x1a, 0x00, 0x01, 0x05,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0d, 0x0f },{ 0x08, 0x07 },{ 0x02, 0x01 },{ 0x03, 0x03 } }, + { 0x19, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0c },{ 0x02, 0x04 },{ 0x01, 0x02 },{ 0x01, 0x03 } }, + { 0x0e, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x07, 0x02 },{ 0x00, 0x07 } }, + { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x00, 0x06 },{ 0x00, 0x02 },{ 0x00, 0x08 } }, + { 0x16, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x02 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x08 } }, + { 0x1d, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x07 } }, + { 0x2d, 0x01, 0x00, 0x04,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x03, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x07 },{ 0x02, 0x02 },{ 0x00, 0x00 },{ 0x00, 0x07 } }, + { 0x1b, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x06, 0x06 },{ 0x04, 0x05 },{ 0x01, 0x01 },{ 0x00, 0x07 } }, + { 0x0b, 0x01, 0x01, 0x00,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x0f },{ 0x05, 0x07 },{ 0x07, 0x00 },{ 0x01, 0x07 } }, + { 0x03, 0x01, 0x00, 0x01,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0e },{ 0x0a, 0x04 },{ 0x01, 0x00 },{ 0x00, 0x04 } }, + { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x01 },{ 0x02, 0x02 } }, + { 0x0c, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x0f },{ 0x02, 0x05 },{ 0x02, 0x04 },{ 0x00, 0x02 } }, + { 0x15, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x0c, 0x09 },{ 0x09, 0x05 },{ 0x00, 0x00 },{ 0x03, 0x02 } }, + { 0x09, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0e },{ 0x01, 0x04 },{ 0x04, 0x01 },{ 0x00, 0x03 } }, + + { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } +}; + +static const opll_patch_t patch_ymf281[opll_patch_max] = { + { 0x1a, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x06 },{ 0x0f, 0x07 },{ 0x00, 0x01 },{ 0x00, 0x06 } }, + { 0x05, 0x00, 0x00, 0x01,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x0f, 0x08 },{ 0x06, 0x03 },{ 0x08, 0x00 },{ 0x00, 0x03 } }, + { 0x16, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x03, 0x01 },{ 0x02, 0x00 },{ 0x0f, 0x0d },{ 0x02, 0x03 },{ 0x01, 0x00 },{ 0x01, 0x03 } }, + { 0x0b, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x06 },{ 0x08, 0x04 },{ 0x07, 0x01 },{ 0x00, 0x07 } }, + { 0x1e, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x02, 0x01 },{ 0x00, 0x00 },{ 0x0e, 0x07 },{ 0x01, 0x06 },{ 0x00, 0x02 },{ 0x00, 0x08 } }, + { 0x02, 0x00, 0x01, 0x06,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x02, 0x00 },{ 0x09, 0x06 },{ 0x0a, 0x01 },{ 0x02, 0x02 },{ 0x00, 0x07 } }, + { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x08, 0x08 },{ 0x04, 0x03 },{ 0x01, 0x00 },{ 0x00, 0x07 } }, + { 0x0a, 0x00, 0x00, 0x02,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x07, 0x02 },{ 0x03, 0x00 },{ 0x06, 0x06 },{ 0x06, 0x04 },{ 0x04, 0x02 },{ 0x00, 0x07 } }, + { 0x07, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0c, 0x07 },{ 0x05, 0x07 },{ 0x05, 0x00 },{ 0x01, 0x07 } }, + { 0x1e, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x00 },{ 0x06, 0x01 },{ 0x01, 0x00 },{ 0x0f, 0x0f },{ 0x02, 0x03 },{ 0x0f, 0x0f },{ 0x00, 0x03 } }, + { 0x18, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x0e },{ 0x05, 0x03 },{ 0x02, 0x01 },{ 0x00, 0x03 } }, + { 0x24, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x07, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x08, 0x08 },{ 0x02, 0x00 },{ 0x02, 0x03 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x00 },{ 0x05, 0x04 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x0f, 0x03 },{ 0x07, 0x0f },{ 0x00, 0x05 } }, + { 0x03, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x01 },{ 0x0f, 0x01 },{ 0x00, 0x00 },{ 0x0f, 0x0e },{ 0x0c, 0x03 },{ 0x03, 0x0f },{ 0x0f, 0x0c } }, + { 0x00, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0a, 0x01 },{ 0x00, 0x00 },{ 0x0b, 0x08 },{ 0x0f, 0x04 },{ 0x00, 0x0f },{ 0x00, 0x05 } }, + + { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } +}; + +static const opll_patch_t patch_ym2423[opll_patch_max] = { + { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x09, 0x05 },{ 0x04, 0x04 },{ 0x01, 0x00 },{ 0x00, 0x05 } }, + { 0x12, 0x00, 0x00, 0x04,{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x01 },{ 0x01, 0x00 },{ 0x0f, 0x0f },{ 0x03, 0x02 },{ 0x0a, 0x0e },{ 0x00, 0x09 } }, + { 0x11, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x02 },{ 0x0f, 0x0f },{ 0x02, 0x02 },{ 0x05, 0x07 },{ 0x00, 0x05 } }, + { 0x28, 0x00, 0x00, 0x07,{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x02 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x03, 0x02 },{ 0x09, 0x0b },{ 0x00, 0x04 } }, + { 0x17, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x02, 0x01 },{ 0x02, 0x00 },{ 0x05, 0x06 },{ 0x01, 0x0f },{ 0x07, 0x00 },{ 0x00, 0x09 } }, + { 0x18, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x03, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x07, 0x04 },{ 0x05, 0x08 },{ 0x00, 0x05 } }, + { 0x1c, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x05, 0x07 },{ 0x01, 0x01 },{ 0x02, 0x02 },{ 0x00, 0x06 } }, + { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x04 },{ 0x00, 0x00 },{ 0x07, 0x03 },{ 0x03, 0x0f },{ 0x00, 0x00 },{ 0x00, 0x06 } }, + { 0x0d, 0x00, 0x00, 0x03,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x04, 0x06 },{ 0x02, 0x0f },{ 0x02, 0x00 },{ 0x00, 0x06 } }, + { 0x10, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x02 },{ 0x0f, 0x0f },{ 0x03, 0x03 },{ 0x02, 0x00 },{ 0x00, 0x04 } }, + { 0x1b, 0x00, 0x00, 0x07,{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x0c, 0x09 },{ 0x05, 0x06 },{ 0x0f, 0x0f },{ 0x00, 0x06 } }, + { 0x1b, 0x00, 0x00, 0x00,{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x09, 0x01 },{ 0x03, 0x00 },{ 0x0f, 0x0f },{ 0x05, 0x03 },{ 0x07, 0x0f },{ 0x00, 0x02 } }, + { 0x11, 0x00, 0x00, 0x03,{ 0x00, 0x01 },{ 0x01, 0x00 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x02 },{ 0x02, 0x00 },{ 0x09, 0x0b },{ 0x04, 0x01 },{ 0x0e, 0x0f },{ 0x00, 0x07 } }, + { 0x17, 0x00, 0x00, 0x06,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x0e },{ 0x03, 0x01 },{ 0x0b, 0x0e },{ 0x00, 0x0b } }, + { 0x0d, 0x00, 0x00, 0x05,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x01 },{ 0x01, 0x01 },{ 0x01, 0x06 },{ 0x00, 0x00 },{ 0x0f, 0x0f },{ 0x02, 0x04 },{ 0x02, 0x09 },{ 0x00, 0x09 } }, + + { 0x18, 0x00, 0x01, 0x07,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0d, 0x00 },{ 0x0f, 0x00 },{ 0x06, 0x00 },{ 0x0a, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x01, 0x00 },{ 0x00, 0x00 },{ 0x0c, 0x00 },{ 0x08, 0x00 },{ 0x0a, 0x00 },{ 0x07, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x05, 0x00 },{ 0x00, 0x00 },{ 0x0f, 0x00 },{ 0x08, 0x00 },{ 0x05, 0x00 },{ 0x09, 0x00 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0f },{ 0x00, 0x08 },{ 0x00, 0x06 },{ 0x00, 0x0d } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0d },{ 0x00, 0x08 },{ 0x00, 0x04 },{ 0x00, 0x08 } }, + { 0x00, 0x00, 0x00, 0x00,{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x00 },{ 0x00, 0x01 },{ 0x00, 0x00 },{ 0x00, 0x0a },{ 0x00, 0x0a },{ 0x00, 0x05 },{ 0x00, 0x05 } } +}; + +static const uint32_t ch_offset[18] = { + 1, 2, 0, 1, 2, 3, 4, 5, 3, 4, 5, 6, 7, 8, 6, 7, 8, 0 +}; + +static const uint32_t pg_multi[16] = { + 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 20, 24, 24, 30, 30 +}; + +static const uint32_t eg_stephi[4][4] = { + { 0, 0, 0, 0 }, + { 1, 0, 0, 0 }, + { 1, 0, 1, 0 }, + { 1, 1, 1, 0 } +}; + +static const uint32_t eg_ksltable[16] = { + 0, 32, 40, 45, 48, 51, 53, 55, 56, 58, 59, 60, 61, 62, 63, 64 +}; + +static void OPLL_DoIO(opll_t *chip) { + /* Write signal check */ + chip->write_a_en = (chip->write_a & 0x03) == 0x01; + chip->write_d_en = (chip->write_d & 0x03) == 0x01; + chip->write_a <<= 1; + chip->write_d <<= 1; +} + +static void OPLL_DoModeWrite(opll_t *chip) { + if ((chip->write_mode_address & 0x10) && chip->write_d_en) { + uint8_t slot = chip->write_mode_address & 0x01; + switch (chip->write_mode_address & 0x0f) { + case 0x00: + case 0x01: + chip->patch.multi[slot] = chip->write_data & 0x0f; + chip->patch.ksr[slot] = (chip->write_data >> 4) & 0x01; + chip->patch.et[slot] = (chip->write_data >> 5) & 0x01; + chip->patch.vib[slot] = (chip->write_data >> 6) & 0x01; + chip->patch.am[slot] = (chip->write_data >> 7) & 0x01; + break; + + case 0x02: + chip->patch.ksl[0] = (chip->write_data >> 6) & 0x03; + chip->patch.tl = chip->write_data & 0x3f; + break; + + case 0x03: + chip->patch.ksl[1] = (chip->write_data >> 6) & 0x03; + chip->patch.dc = (chip->write_data >> 4) & 0x01; + chip->patch.dm = (chip->write_data >> 3) & 0x01; + chip->patch.fb = chip->write_data & 0x07; + break; + + case 0x04: + case 0x05: + chip->patch.dr[slot] = chip->write_data & 0x0f; + chip->patch.ar[slot] = (chip->write_data >> 4) & 0x0f; + break; + + case 0x06: + case 0x07: + chip->patch.rr[slot] = chip->write_data & 0x0f; + chip->patch.sl[slot] = (chip->write_data >> 4) & 0x0f; + break; + + case 0x0e: + chip->rhythm = chip->write_data & 0x3f; + if (chip->chip_type == opll_type_ds1001) { + chip->rhythm |= 0x20; + } + chip->rm_enable = (chip->rm_enable & 0x7f) | ((chip->rhythm << 2) & 0x80); + break; + + case 0x0f: + chip->testmode = chip->write_data & 0x0f; + break; + } + } +} + +void OPLL_Reset(opll_t *chip, uint32_t chip_type) { + uint32_t i; + memset(chip, 0, sizeof(opll_t)); + chip->chip_type = chip_type; + if (chip_type == opll_type_ds1001) { + /* Rhythm mode is always on */ + chip->rhythm = 0x20; + chip->rm_enable = (int8_t)0x80; + } + switch (chip_type) { + case opll_type_ds1001: + chip->patchrom = patch_ds1001; + break; + case opll_type_ymf281: + case opll_type_ymf281b: + chip->patchrom = patch_ymf281; + break; + case opll_type_ym2423: + chip->patchrom = patch_ym2423; + break; + case opll_type_ym2413: + case opll_type_ym2413b: + case opll_type_ym2420: + default: + chip->patchrom = patch_ym2413; + break; + } + for (i = 0; i < 18; i++) { + chip->eg_state[i] = eg_num_release; + chip->eg_level[i] = 0x7f; + chip->eg_out = 0x7f; + } + chip->rm_select = rm_num_tc + 1; +} + +static void OPLL_DoRegWrite(opll_t *chip) { + /* Address */ + if (chip->write_a_en) { + if ((chip->write_data & 0xc0) == 0x00) { + /* FM Write */ + chip->write_fm_address = 1; + chip->address = chip->write_data; + } else { + chip->write_fm_address = 0; + } + } + /* Data */ + if (chip->write_fm_address && chip->write_d_en) { + chip->data = chip->write_data; + } + + /* Update registers */ + if (chip->write_fm_data && !chip->write_a_en) { + if ((chip->address & 0x0f) == chip->cycles && chip->cycles < 16) { + uint32_t channel = chip->cycles % 9; + switch (chip->address & 0xf0) { + case 0x10: + if (chip->chip_type == opll_type_ym2420) + { + chip->fnum[channel] = (chip->fnum[channel] & 0x0f) | ((chip->data & 0x1f) << 4); + chip->block[channel] = (chip->data >> 5) & 0x07; + } + else + chip->fnum[channel] = (chip->fnum[channel] & 0x100) | chip->data; + break; + case 0x20: + if (chip->chip_type == opll_type_ym2420) + chip->fnum[channel] = (chip->fnum[channel] & 0x1f0) | (chip->data & 0x0f); + else + { + chip->fnum[channel] = (chip->fnum[channel] & 0xff) | ((chip->data & 0x01) << 8); + chip->block[channel] = (chip->data >> 1) & 0x07; + } + chip->kon[channel] = (chip->data >> 4) & 0x01; + chip->son[channel] = (chip->data >> 5) & 0x01; + break; + case 0x30: + chip->vol[channel] = chip->data & 0x0f; + chip->inst[channel] = (chip->data >> 4) & 0x0f; + break; + } + } + } + + + if (chip->write_a_en) { + chip->write_fm_data = 0; + } + if (chip->write_fm_address && chip->write_d_en) { + chip->write_fm_data = 1; + } + if (chip->write_a_en) { + if (((chip->write_data & 0xf0) == 0x00)) { + chip->write_mode_address = 0x10 | (chip->write_data & 0x0f); + } else { + chip->write_mode_address = 0x00; + } + } + +} + +static void OPLL_PreparePatch1(opll_t *chip) { + uint8_t instr; + uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; + uint32_t instr_index; + uint32_t ch = ch_offset[chip->cycles]; + const opll_patch_t *patch; + instr = chip->inst[ch]; + if (instr > 0) { + instr_index = opll_patch_1 + instr - 1; + } + if (chip->rm_select <= rm_num_tc) { + instr_index = opll_patch_drum_0 + chip->rm_select; + } + if (chip->rm_select <= rm_num_tc || instr > 0) { + patch = &chip->patchrom[instr_index]; + } else { + patch = &chip->patch; + } + if (chip->rm_select == rm_num_hh || chip->rm_select == rm_num_tom) { + chip->c_tl = chip->inst[ch] << 2; + } else if (mcsel == 1) { + chip->c_tl = chip->vol[ch] << 2; + } else { + chip->c_tl = patch->tl; + } + + chip->c_adrr[0] = patch->ar[mcsel]; + chip->c_adrr[1] = patch->dr[mcsel]; + chip->c_adrr[2] = patch->rr[mcsel]; + chip->c_et = patch->et[mcsel]; + chip->c_ksr = patch->ksr[mcsel]; + chip->c_ksl = patch->ksl[mcsel]; + chip->c_ksr_freq = (chip->block[ch] << 1) | (chip->fnum[ch] >> 8); + chip->c_ksl_freq = (chip->fnum[ch]>>5); + chip->c_ksl_block = (chip->block[ch]); +} + +static void OPLL_PreparePatch2(opll_t *chip) { + uint8_t instr; + uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; + uint32_t instr_index; + const opll_patch_t *patch; + instr = chip->inst[ch_offset[chip->cycles]]; + if (instr > 0) { + instr_index = opll_patch_1 + instr - 1; + } + if (chip->rm_select <= rm_num_tc) { + instr_index = opll_patch_drum_0 + chip->rm_select; + } + if (chip->rm_select <= rm_num_tc || instr > 0) { + patch = &chip->patchrom[instr_index]; + } else { + patch = &chip->patch; + } + + chip->c_fnum = chip->fnum[ch_offset[chip->cycles]]; + chip->c_block = chip->block[ch_offset[chip->cycles]]; + + chip->c_multi = patch->multi[mcsel]; + chip->c_sl = patch->sl[mcsel]; + chip->c_fb = patch->fb; + chip->c_vib = patch->vib[mcsel]; + chip->c_am = patch->am[mcsel]; + chip->c_dc <<= 1; + chip->c_dm <<= 1; + chip->c_dc |= patch->dc; + chip->c_dm |= patch->dm; +} + +static void OPLL_PhaseGenerate(opll_t *chip) { + uint32_t ismod; + uint32_t phase; + uint16_t pg_out; + uint8_t rm_bit; + + chip->pg_phase[(chip->cycles + 17) % 18] = chip->pg_phase_next + chip->pg_inc; + + if ((chip->rm_enable & 0x40) && (chip->cycles == 13 || chip->cycles == 14)) { + ismod = 0; + } else { + ismod = ((chip->cycles + 3) / 3) & 1; + } + phase = chip->pg_phase[chip->cycles]; + /* KeyOn event check */ + if ((chip->testmode & 0x04) + || (ismod && (chip->eg_dokon & 0x8000)) || (!ismod && (chip->eg_dokon & 0x01))) { + chip->pg_phase_next = 0; + } else { + chip->pg_phase_next = phase; + } + /* Rhythm mode */ + if (chip->cycles == 13) { + chip->rm_hh_bit2 = (phase >> (2 + 9)) & 1; + chip->rm_hh_bit3 = (phase >> (3 + 9)) & 1; + chip->rm_hh_bit7 = (phase >> (7 + 9)) & 1; + chip->rm_hh_bit8 = (phase >> (8 + 9)) & 1; + } else if (chip->cycles == 17 && (chip->rm_enable & 0x80)) { + chip->rm_tc_bit3 = (phase >> (3 + 9)) & 1; + chip->rm_tc_bit5 = (phase >> (5 + 9)) & 1; + } + if ((chip->rm_enable & 0x80)) { + switch (chip->cycles) { + case 13: + /* HH */ + rm_bit = (chip->rm_hh_bit2 ^ chip->rm_hh_bit7) + | (chip->rm_hh_bit3 ^ chip->rm_tc_bit5) + | (chip->rm_tc_bit3 ^ chip->rm_tc_bit5); + pg_out = rm_bit << 9; + if (rm_bit ^ (chip->rm_noise & 1)) { + pg_out |= 0xd0; + } else { + pg_out |= 0x34; + } + break; + case 16: + /* SD */ + pg_out = (chip->rm_hh_bit8 << 9) + | ((chip->rm_hh_bit8 ^ (chip->rm_noise & 1)) << 8); + break; + case 17: + /* TC */ + rm_bit = (chip->rm_hh_bit2 ^ chip->rm_hh_bit7) + | (chip->rm_hh_bit3 ^ chip->rm_tc_bit5) + | (chip->rm_tc_bit3 ^ chip->rm_tc_bit5); + pg_out = (rm_bit << 9) | 0x100; + break; + default: + pg_out = phase >> 9; + } + } else { + pg_out = phase >> 9; + } + chip->pg_out = pg_out; +} + +static void OPLL_PhaseCalcIncrement(opll_t *chip) { + uint32_t freq; + uint16_t block; + freq = chip->c_fnum << 1; + block = chip->c_block; + /* Apply vibrato */ + if (chip->c_vib) { + switch (chip->lfo_vib_counter) { + case 0: + case 4: + break; + case 1: + case 3: + freq += freq >> 8; + break; + case 2: + freq += freq >> 7; + break; + case 5: + case 7: + freq -= freq >> 8; + break; + case 6: + freq -= freq >> 7; + break; + } + } + /* Apply block */ + freq = (freq << block) >> 1; + + chip->pg_inc = (freq * pg_multi[chip->c_multi]) >> 1; +} + +static void OPLL_EnvelopeKSLTL(opll_t *chip) { + int32_t ksl; + + ksl = eg_ksltable[chip->c_ksl_freq]-((8-chip->c_ksl_block)<<3); + if (ksl < 0) { + ksl = 0; + } + + ksl <<= 1; + + if (chip->c_ksl) { + ksl = ksl >> (3-chip->c_ksl); + } else { + ksl = 0; + } + + chip->eg_ksltl = ksl + (chip->c_tl<<1); +} + +static void OPLL_EnvelopeOutput(opll_t *chip) { + int32_t level = chip->eg_level[(chip->cycles+17)%18]; + + level += chip->eg_ksltl; + + if (chip->c_am) { + level += chip->lfo_am_out; + } + + if (level >= 128) { + level = 127; + } + + if (chip->testmode & 0x01) { + level = 0; + } + + chip->eg_out = level; +} + +static void OPLL_EnvelopeGenerate(opll_t *chip) { + uint8_t timer_inc; + uint8_t timer_bit; + uint8_t timer_low; + uint8_t rate; + uint8_t state_rate; + uint8_t ksr; + uint8_t sum; + uint8_t rate_hi; + uint8_t rate_lo; + int32_t level; + int32_t next_level; + uint8_t zero; + uint8_t state; + uint8_t next_state; + int32_t step; + int32_t sl; + uint32_t mcsel = ((chip->cycles + 1) / 3) & 0x01; + + + /* EG timer */ + if ((chip->eg_counter_state & 3) != 3) { + timer_inc = 0; + } else if (chip->cycles == 0) { + timer_inc = 1; + } else { + timer_inc = chip->eg_timer_carry; + } + timer_low = chip->eg_timer & 3; + timer_bit = chip->eg_timer & 1; + timer_bit += timer_inc; + chip->eg_timer_carry = timer_bit >> 1; + chip->eg_timer = ((timer_bit & 1) << 17) | (chip->eg_timer >> 1); + if (chip->testmode & 0x08) { + chip->eg_timer &= 0x2ffff; + chip->eg_timer |= (chip->write_data << (16 - 2)) & 0x10000; + } + if (!chip->eg_timer_shift_stop && ((chip->eg_timer >> 16) & 1)) { + chip->eg_timer_shift = chip->cycles; + } + if (chip->cycles == 0 && (chip->eg_counter_state_prev & 1) == 1) { + chip->eg_timer_low_lock = timer_low; + chip->eg_timer_shift_lock = chip->eg_timer_shift; + if (chip->eg_timer_shift_lock > 13) + chip->eg_timer_shift_lock = 0; + + chip->eg_timer_shift = 0; + } + chip->eg_timer_shift_stop |= (chip->eg_timer >> 16) & 1; + if (chip->cycles == 0) { + chip->eg_timer_shift_stop = 0; + } + chip->eg_counter_state_prev = chip->eg_counter_state; + if (chip->cycles == 17) { + chip->eg_counter_state++; + } + + level = chip->eg_level[(chip->cycles+16)%18]; + next_level = level; + zero = level == 0; + chip->eg_silent = level == 0x7f; + + if (chip->eg_state[(chip->cycles+16)%18] != eg_num_attack && (chip->eg_off&2) && !(chip->eg_dokon&2)) { + next_level = 0x7f; + } + + if (chip->eg_maxrate && (chip->eg_dokon&2)) { + next_level = 0x00; + } + + + state = chip->eg_state[(chip->cycles+16)%18]; + next_state = eg_num_attack; + + step = 0; + sl = chip->eg_sl; + + switch (state) { + case eg_num_attack: + if (!chip->eg_maxrate && (chip->eg_kon & 2) && !zero) { + int32_t shift = (chip->eg_rate_hi < 12) ? chip->eg_inc_lo : (chip->eg_rate_hi - 11 + chip->eg_inc_hi); + if (shift > 0) { + step = ~level >> (5 - shift); + } + } + if (zero) { + next_state = eg_num_decay; + } else { + next_state = eg_num_attack; + } + break; + case eg_num_decay: + if (!(chip->eg_off & 2) && !(chip->eg_dokon & 2) && (level >> 3) != sl) + { + uint8_t i0 = chip->eg_rate_hi == 15 || (chip->eg_rate_hi == 14 && chip->eg_inc_hi); + uint8_t i1 = (chip->eg_rate_hi == 14 && !chip->eg_inc_hi) || (chip->eg_rate_hi == 13 && chip->eg_inc_hi) || + (chip->eg_rate_hi == 13 && !chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) + || (chip->eg_rate_hi == 12 && chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) + || (chip->eg_rate_hi == 12 && !chip->eg_inc_hi && ((chip->eg_counter_state_prev & 3) == 3)) + || (chip->eg_inc_lo && ((chip->eg_counter_state_prev & 3) == 3)); + step = (i0<<1) | i1; + } + if ((level >> 3) == sl) { + next_state = eg_num_sustain; + } else { + next_state = eg_num_decay; + } + break; + case eg_num_sustain: + case eg_num_release: + if (!(chip->eg_off & 2) && !(chip->eg_dokon & 2)) + { + uint8_t i0 = chip->eg_rate_hi == 15 || (chip->eg_rate_hi == 14 && chip->eg_inc_hi); + uint8_t i1 = (chip->eg_rate_hi == 14 && !chip->eg_inc_hi) || (chip->eg_rate_hi == 13 && chip->eg_inc_hi) || + (chip->eg_rate_hi == 13 && !chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) + || (chip->eg_rate_hi == 12 && chip->eg_inc_hi && (chip->eg_counter_state_prev & 1)) + || (chip->eg_rate_hi == 12 && !chip->eg_inc_hi && ((chip->eg_counter_state_prev & 3) == 3)) + || (chip->eg_inc_lo && ((chip->eg_counter_state_prev & 3) == 3)); + step = (i0<<1) | i1; + } + next_state = state; + break; + } + + if (!(chip->eg_kon & 2)) { + next_state = eg_num_release; + } + if (chip->eg_dokon & 2) { + next_state = eg_num_attack; + } + + chip->eg_level[(chip->cycles+16)%18] = next_level+step; + chip->eg_state[(chip->cycles+16)%18] = next_state; + + rate_hi = chip->eg_rate >> 2; + rate_lo = chip->eg_rate & 3; + chip->eg_inc_hi = eg_stephi[rate_lo][chip->eg_timer_low_lock]; + sum = (chip->eg_timer_shift_lock + rate_hi) & 0x0f; + chip->eg_inc_lo = 0; + if (rate_hi < 12 && !chip->eg_zerorate) { + switch (sum) { + case 12: + chip->eg_inc_lo = 1; + break; + case 13: + chip->eg_inc_lo = (rate_lo >> 1) & 1; + break; + case 14: + chip->eg_inc_lo = rate_lo & 1; + break; + } + } + chip->eg_maxrate = rate_hi == 0x0f; + + chip->eg_rate_hi = rate_hi; + + chip->eg_kon <<= 1; + chip->eg_kon |= chip->kon[ch_offset[chip->cycles]]; + chip->eg_off <<= 1; + chip->eg_off |= (chip->eg_level[chip->cycles] >> 2) == 0x1f; + switch (chip->rm_select) { + case rm_num_bd0: + case rm_num_bd1: + chip->eg_kon |= (chip->rhythm >> 4) & 1; + break; + case rm_num_sd: + chip->eg_kon |= (chip->rhythm >> 3) & 1; + break; + case rm_num_tom: + chip->eg_kon |= (chip->rhythm >> 2) & 1; + break; + case rm_num_tc: + chip->eg_kon |= (chip->rhythm >> 1) & 1; + break; + case rm_num_hh: + chip->eg_kon |= chip->rhythm & 1; + break; + } + + /* Calculate rate */ + rate = 0; + chip->eg_dokon <<= 1; + state_rate = chip->eg_state[chip->cycles]; + if (state_rate == eg_num_release && (chip->eg_kon&1) && (chip->eg_off&1)) { + state_rate = eg_num_attack; + chip->eg_dokon |= 1; + } + switch (state_rate) { + case eg_num_attack: + rate = chip->c_adrr[0]; + break; + case eg_num_decay: + rate = chip->c_adrr[1]; + break; + case eg_num_sustain: + if (!chip->c_et) { + rate = chip->c_adrr[2]; + } + break; + case eg_num_release: + if (chip->son[ch_offset[chip->cycles]]) { + rate = 5; + } else { + rate = chip->c_adrr[2]; + } + break; + } + if (!(chip->eg_kon&1) && !mcsel && chip->rm_select != rm_num_tom && chip->rm_select != rm_num_hh) { + rate = 0; + } + if ((chip->eg_kon&1) && chip->eg_state[chip->cycles] == eg_num_release && !(chip->eg_off&1)) { + rate = 12; + } + if (!(chip->eg_kon&1) && !chip->son[ch_offset[chip->cycles]] && mcsel == 1 && !chip->c_et) { + rate = 7; + } + chip->eg_zerorate = rate == 0; + ksr = chip->c_ksr_freq; + if (!chip->c_ksr) + ksr >>= 2; + chip->eg_rate = (rate << 2) + ksr; + if (chip->eg_rate & 0x40) { + chip->eg_rate = 0x3c | (ksr & 3); + } + chip->eg_sl = chip->c_sl; +} + +static void OPLL_Channel(opll_t *chip) { + int16_t ch_out = chip->ch_out; + uint8_t ismod = (chip->cycles / 3) & 1; + uint8_t mute_m = ismod || ((chip->rm_enable&0x40) && (chip->cycles+15)%18 >= 12); + if (chip->chip_type == opll_type_ds1001) { + chip->output_m = ch_out; + if (chip->output_m >= 0) { + chip->output_m++; + } + if (mute_m) { + chip->output_m = 0; + } + chip->output_r = 0; + return; + } else { + uint8_t mute_r = 1; + /* TODO: This might be incorrect */ + if ((chip->rm_enable & 0x40)) { + switch (chip->cycles) { + case 16: /* HH */ + case 17: /* TOM */ + case 0: /* BD */ + case 1: /* SD */ + case 2: /* TC */ + case 3: /* HH */ + case 4: /* TOM */ + case 5: /* BD */ + case 9: /* TOM */ + case 10: /* TOM */ + mute_r = 0; + break; + } + } + if (chip->chip_type == opll_type_ym2413b || chip->chip_type == opll_type_ymf281b) { + if (mute_m) + chip->output_m = 0; + else + chip->output_m = ch_out; + if (mute_r) + chip->output_r = 0; + else + chip->output_r = ch_out; + } else { + int16_t sign = ch_out >> 8; + if (ch_out >= 0) { + ch_out++; + sign++; + } + if (mute_m) + chip->output_m = sign; + else + chip->output_m = ch_out; + if (mute_r) + chip->output_r = sign; + else + chip->output_r = ch_out; + } + } +} + +static void OPLL_Operator(opll_t *chip) { + uint8_t ismod1, ismod2, ismod3; + uint32_t op_mod; + uint16_t exp_shift; + int16_t output; + uint32_t level; + uint32_t phase; + int16_t routput; + if ((chip->rm_enable & 0x80) && (chip->cycles == 15 || chip->cycles == 16)) { + ismod1 = 0; + } else { + ismod1 = ((chip->cycles + 1) / 3) & 1; + } + if ((chip->rm_enable & 0x40) && (chip->cycles == 13 || chip->cycles == 14)) { + ismod2 = 0; + } else { + ismod2 = ((chip->cycles + 3) / 3) & 1; + } + if ((chip->rm_enable & 0x40) && (chip->cycles == 16 || chip->cycles == 17)) { + ismod3 = 0; + } else { + ismod3 = (chip->cycles / 3) & 1; + } + + op_mod = 0; + + if (ismod3) { + op_mod |= chip->op_mod << 1; + } + + if (ismod2 && chip->c_fb) { + op_mod |= chip->op_fbsum >> (7 - chip->c_fb); + } + + exp_shift = chip->op_exp_s; + if (chip->eg_silent || ((chip->op_neg&2) && (ismod1 ? (chip->c_dm&4) : (chip->c_dc&4)))) { + exp_shift |= 12; + } + + output = chip->op_exp_m>>exp_shift; + if (!chip->eg_silent && (chip->op_neg&2)) { + output = ~output; + } + + level = chip->op_logsin+(chip->eg_out<<4); + if (level >= 4096) { + level = 4095; + } + + chip->op_exp_m = exprom[level & 0xff]; + chip->op_exp_s = level >> 8; + + phase = (op_mod + chip->pg_out) & 0x3ff; + if (phase & 0x100) { + phase ^= 0xff; + } + chip->op_logsin = logsinrom[phase & 0xff]; + chip->op_neg <<= 1; + chip->op_neg |= phase >> 9; + chip->op_fbsum = (chip->op_fb1[(chip->cycles + 3) % 9] + chip->op_fb2[(chip->cycles + 3) % 9]) >> 1; + + if (ismod1) { + chip->op_fb2[chip->cycles%9] = chip->op_fb1[chip->cycles%9]; + chip->op_fb1[chip->cycles%9] = output; + } + chip->op_mod = output&0x1ff; + + if (chip->chip_type == opll_type_ds1001) { + routput = 0; + } else { + switch (chip->cycles) { + case 2: + routput = chip->ch_out_hh; + break; + case 3: + routput = chip->ch_out_tm; + break; + case 4: + routput = chip->ch_out_bd; + break; + case 8: + routput = chip->ch_out_sd; + break; + case 9: + routput = chip->ch_out_tc; + break; + default: + routput = 0; /* TODO: Not quite true */ + break; + } + switch (chip->cycles) { + case 15: + chip->ch_out_hh = output>>3; + break; + case 16: + chip->ch_out_tm = output>>3; + break; + case 17: + chip->ch_out_bd = output>>3; + break; + case 0: + chip->ch_out_sd = output>>3; + break; + case 1: + chip->ch_out_tc = output>>3; + break; + default: + break; + } + } + + if (!(chip->rm_enable & 0x80)) + routput = 0; + + chip->ch_out = ismod1 ? routput : (output>>3); +} + +static void OPLL_DoRhythm(opll_t *chip) { + uint8_t nbit; + + /* Noise */ + nbit = (chip->rm_noise ^ (chip->rm_noise >> 14)) & 0x01; + nbit |= (chip->rm_noise == 0x00) | ((chip->testmode >> 1) & 0x01); + chip->rm_noise = (nbit << 22) | (chip->rm_noise >> 1); +} + +static void OPLL_DoLFO(opll_t *chip) { + uint8_t am_inc = 0; + uint8_t am_bit; + + /* Update counter */ + if (chip->cycles == 17) { + uint8_t vib_step = ((chip->lfo_counter & 0x3ff) + 1) >> 10; + chip->lfo_am_step = ((chip->lfo_counter & 0x3f) + 1) >> 6; + vib_step |= (chip->testmode >> 3) & 0x01; + chip->lfo_vib_counter += vib_step; + chip->lfo_vib_counter &= 0x07; + chip->lfo_counter++; + } + + /* LFO AM */ + if ((chip->lfo_am_step || (chip->testmode & 0x08)) && chip->cycles < 9) { + am_inc = chip->lfo_am_dir | (chip->cycles == 0); + } + + if (chip->cycles >= 9) { + chip->lfo_am_car = 0; + } + + if (chip->cycles == 0) { + if (chip->lfo_am_dir && (chip->lfo_am_counter & 0x7f) == 0) { + chip->lfo_am_dir = 0; + } else if (!chip->lfo_am_dir && (chip->lfo_am_counter & 0x69) == 0x69) { + chip->lfo_am_dir = 1; + } + } + + am_bit = chip->lfo_am_counter & 0x01; + am_bit += am_inc + chip->lfo_am_car; + chip->lfo_am_car = am_bit >> 1; + am_bit &= 0x01; + chip->lfo_am_counter = (am_bit << 8) | (chip->lfo_am_counter >> 1); + + + /* Reset LFO */ + if (chip->testmode & 0x02) { + chip->lfo_vib_counter = 0; + chip->lfo_counter = 0; + chip->lfo_am_dir = 0; + chip->lfo_am_counter &= 0xff; + } +} + + +void OPLL_Clock(opll_t *chip, int32_t *buffer) { + buffer[0] = chip->output_m; + buffer[1] = chip->output_r; + if (chip->cycles == 0) { + chip->lfo_am_out = (chip->lfo_am_counter >> 3) & 0x0f; + } + chip->rm_enable >>= 1; + OPLL_DoModeWrite(chip); + chip->rm_select++; + if (chip->rm_select > rm_num_tc) { + chip->rm_select = rm_num_tc + 1; + } + if (chip->cycles == 11 && (chip->rm_enable & 0x80) == 0x80) { + chip->rm_select = rm_num_bd0; + } + OPLL_PreparePatch1(chip); + + OPLL_Channel(chip); + + OPLL_PhaseGenerate(chip); + + OPLL_Operator(chip); + + OPLL_PhaseCalcIncrement(chip); + + OPLL_EnvelopeOutput(chip); + OPLL_EnvelopeKSLTL(chip); + OPLL_EnvelopeGenerate(chip); + + OPLL_DoLFO(chip); + OPLL_DoRhythm(chip); + OPLL_PreparePatch2(chip); + OPLL_DoRegWrite(chip); + OPLL_DoIO(chip); + chip->cycles = (chip->cycles + 1) % 18; + +} + + +void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data) { + chip->write_data = data; + if (port & 1) { + /* Data */ + chip->write_d |= 1; + } else { + /* Address */ + chip->write_a |= 1; + } +} diff --git a/src/core/mappers/opll.h b/src/extra/Nuked-OPLL/opll.h similarity index 95% rename from src/core/mappers/opll.h rename to src/extra/Nuked-OPLL/opll.h index 706eb9f3b..c3e02e8cc 100644 --- a/src/core/mappers/opll.h +++ b/src/extra/Nuked-OPLL/opll.h @@ -1,199 +1,199 @@ -/* - * Copyright (C) 2019 Nuke.YKT - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - * Yamaha YM2413 emulator - * Thanks: - * siliconpr0n.org(digshadow, John McMaster): - * VRC VII decap and die shot. - * - * version: 1.0.1 - */ - -#ifndef OPLL_H -#define OPLL_H - -#include - -enum { - opll_type_ym2413 = 0x00, /* Yamaha YM2413 */ - opll_type_ds1001, /* Konami VRC VII */ - opll_type_ym2413b, /* Yamaha YM2413B */ - opll_type_ymf281, /* Yamaha YMF281 */ - opll_type_ymf281b, /* Yamaha YMF281B */ - opll_type_ym2420, /* Yamaha YM2420 */ - opll_type_ym2423, /* Yamaha YM2423 */ -}; - -enum { - opll_patch_1 = 0x00, - opll_patch_2, - opll_patch_3, - opll_patch_4, - opll_patch_5, - opll_patch_6, - opll_patch_7, - opll_patch_8, - opll_patch_9, - opll_patch_10, - opll_patch_11, - opll_patch_12, - opll_patch_13, - opll_patch_14, - opll_patch_15, - opll_patch_drum_0, - opll_patch_drum_1, - opll_patch_drum_2, - opll_patch_drum_3, - opll_patch_drum_4, - opll_patch_drum_5, - opll_patch_max -}; - -typedef struct { - uint8_t tl; - uint8_t dc; - uint8_t dm; - uint8_t fb; - uint8_t am[2]; - uint8_t vib[2]; - uint8_t et[2]; - uint8_t ksr[2]; - uint8_t multi[2]; - uint8_t ksl[2]; - uint8_t ar[2]; - uint8_t dr[2]; - uint8_t sl[2]; - uint8_t rr[2]; -} opll_patch_t; - -typedef struct { - uint32_t chip_type; - uint32_t cycles; - uint32_t slot; - const opll_patch_t *patchrom; - /* IO */ - uint8_t write_data; - uint8_t write_a; - uint8_t write_d; - uint8_t write_a_en; - uint8_t write_d_en; - uint8_t write_fm_address; - uint8_t write_fm_data; - uint8_t write_mode_address; - uint8_t address; - uint8_t data; - /* Envelope generator */ - uint8_t eg_counter_state; - uint8_t eg_counter_state_prev; - uint32_t eg_timer; - uint8_t eg_timer_low_lock; - uint8_t eg_timer_carry; - uint8_t eg_timer_shift; - uint8_t eg_timer_shift_lock; - uint8_t eg_timer_shift_stop; - uint8_t eg_state[18]; - uint8_t eg_level[18]; - uint8_t eg_kon; - uint32_t eg_dokon; - uint8_t eg_off; - uint8_t eg_rate; - uint8_t eg_maxrate; - uint8_t eg_zerorate; - uint8_t eg_inc_lo; - uint8_t eg_inc_hi; - uint8_t eg_rate_hi; - uint16_t eg_sl; - uint16_t eg_ksltl; - uint8_t eg_out; - uint8_t eg_silent; - /* Phase generator */ - uint16_t pg_fnum; - uint8_t pg_block; - uint16_t pg_out; - uint32_t pg_inc; - uint32_t pg_phase[18]; - uint32_t pg_phase_next; - /* Operator */ - int16_t op_fb1[9]; - int16_t op_fb2[9]; - int16_t op_fbsum; - int16_t op_mod; - uint8_t op_neg; - uint16_t op_logsin; - uint16_t op_exp_m; - uint16_t op_exp_s; - /* Channel */ - int16_t ch_out; - int16_t ch_out_hh; - int16_t ch_out_tm; - int16_t ch_out_bd; - int16_t ch_out_sd; - int16_t ch_out_tc; - /* LFO */ - uint16_t lfo_counter; - uint8_t lfo_vib_counter; - uint16_t lfo_am_counter; - uint8_t lfo_am_step; - uint8_t lfo_am_dir; - uint8_t lfo_am_car; - uint8_t lfo_am_out; - /* Register set */ - uint16_t fnum[9]; - uint8_t block[9]; - uint8_t kon[9]; - uint8_t son[9]; - uint8_t vol[9]; - uint8_t inst[9]; - uint8_t rhythm; - uint8_t testmode; - opll_patch_t patch; - uint8_t c_instr; - uint8_t c_op; - uint8_t c_tl; - uint8_t c_dc; - uint8_t c_dm; - uint8_t c_fb; - uint8_t c_am; - uint8_t c_vib; - uint8_t c_et; - uint8_t c_ksr; - uint8_t c_ksr_freq; - uint8_t c_ksl_freq; - uint8_t c_ksl_block; - uint8_t c_multi; - uint8_t c_ksl; - uint8_t c_adrr[3]; - uint8_t c_sl; - uint16_t c_fnum; - uint16_t c_block; - /* Rhythm mode */ - int8_t rm_enable; - uint32_t rm_noise; - uint32_t rm_select; - uint8_t rm_hh_bit2; - uint8_t rm_hh_bit3; - uint8_t rm_hh_bit7; - uint8_t rm_hh_bit8; - uint8_t rm_tc_bit3; - uint8_t rm_tc_bit5; - - int16_t output_m; - int16_t output_r; - -} opll_t; - -void OPLL_Reset(opll_t *chip, uint32_t chip_type); -void OPLL_Clock(opll_t *chip, int32_t *buffer); -void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data); -#endif +/* + * Copyright (C) 2019 Nuke.YKT + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Yamaha YM2413 emulator + * Thanks: + * siliconpr0n.org(digshadow, John McMaster): + * VRC VII decap and die shot. + * + * version: 1.0.1 + */ + +#ifndef OPLL_H +#define OPLL_H + +#include + +enum { + opll_type_ym2413 = 0x00, /* Yamaha YM2413 */ + opll_type_ds1001, /* Konami VRC VII */ + opll_type_ym2413b, /* Yamaha YM2413B */ + opll_type_ymf281, /* Yamaha YMF281 */ + opll_type_ymf281b, /* Yamaha YMF281B */ + opll_type_ym2420, /* Yamaha YM2420 */ + opll_type_ym2423, /* Yamaha YM2423 */ +}; + +enum { + opll_patch_1 = 0x00, + opll_patch_2, + opll_patch_3, + opll_patch_4, + opll_patch_5, + opll_patch_6, + opll_patch_7, + opll_patch_8, + opll_patch_9, + opll_patch_10, + opll_patch_11, + opll_patch_12, + opll_patch_13, + opll_patch_14, + opll_patch_15, + opll_patch_drum_0, + opll_patch_drum_1, + opll_patch_drum_2, + opll_patch_drum_3, + opll_patch_drum_4, + opll_patch_drum_5, + opll_patch_max +}; + +typedef struct { + uint8_t tl; + uint8_t dc; + uint8_t dm; + uint8_t fb; + uint8_t am[2]; + uint8_t vib[2]; + uint8_t et[2]; + uint8_t ksr[2]; + uint8_t multi[2]; + uint8_t ksl[2]; + uint8_t ar[2]; + uint8_t dr[2]; + uint8_t sl[2]; + uint8_t rr[2]; +} opll_patch_t; + +typedef struct { + uint32_t chip_type; + uint32_t cycles; + uint32_t slot; + const opll_patch_t *patchrom; + /* IO */ + uint8_t write_data; + uint8_t write_a; + uint8_t write_d; + uint8_t write_a_en; + uint8_t write_d_en; + uint8_t write_fm_address; + uint8_t write_fm_data; + uint8_t write_mode_address; + uint8_t address; + uint8_t data; + /* Envelope generator */ + uint8_t eg_counter_state; + uint8_t eg_counter_state_prev; + uint32_t eg_timer; + uint8_t eg_timer_low_lock; + uint8_t eg_timer_carry; + uint8_t eg_timer_shift; + uint8_t eg_timer_shift_lock; + uint8_t eg_timer_shift_stop; + uint8_t eg_state[18]; + uint8_t eg_level[18]; + uint8_t eg_kon; + uint32_t eg_dokon; + uint8_t eg_off; + uint8_t eg_rate; + uint8_t eg_maxrate; + uint8_t eg_zerorate; + uint8_t eg_inc_lo; + uint8_t eg_inc_hi; + uint8_t eg_rate_hi; + uint16_t eg_sl; + uint16_t eg_ksltl; + uint8_t eg_out; + uint8_t eg_silent; + /* Phase generator */ + uint16_t pg_fnum; + uint8_t pg_block; + uint16_t pg_out; + uint32_t pg_inc; + uint32_t pg_phase[18]; + uint32_t pg_phase_next; + /* Operator */ + int16_t op_fb1[9]; + int16_t op_fb2[9]; + int16_t op_fbsum; + int16_t op_mod; + uint8_t op_neg; + uint16_t op_logsin; + uint16_t op_exp_m; + uint16_t op_exp_s; + /* Channel */ + int16_t ch_out; + int16_t ch_out_hh; + int16_t ch_out_tm; + int16_t ch_out_bd; + int16_t ch_out_sd; + int16_t ch_out_tc; + /* LFO */ + uint16_t lfo_counter; + uint8_t lfo_vib_counter; + uint16_t lfo_am_counter; + uint8_t lfo_am_step; + uint8_t lfo_am_dir; + uint8_t lfo_am_car; + uint8_t lfo_am_out; + /* Register set */ + uint16_t fnum[9]; + uint8_t block[9]; + uint8_t kon[9]; + uint8_t son[9]; + uint8_t vol[9]; + uint8_t inst[9]; + uint8_t rhythm; + uint8_t testmode; + opll_patch_t patch; + uint8_t c_instr; + uint8_t c_op; + uint8_t c_tl; + uint8_t c_dc; + uint8_t c_dm; + uint8_t c_fb; + uint8_t c_am; + uint8_t c_vib; + uint8_t c_et; + uint8_t c_ksr; + uint8_t c_ksr_freq; + uint8_t c_ksl_freq; + uint8_t c_ksl_block; + uint8_t c_multi; + uint8_t c_ksl; + uint8_t c_adrr[3]; + uint8_t c_sl; + uint16_t c_fnum; + uint16_t c_block; + /* Rhythm mode */ + int8_t rm_enable; + uint32_t rm_noise; + uint32_t rm_select; + uint8_t rm_hh_bit2; + uint8_t rm_hh_bit3; + uint8_t rm_hh_bit7; + uint8_t rm_hh_bit8; + uint8_t rm_tc_bit3; + uint8_t rm_tc_bit5; + + int16_t output_m; + int16_t output_r; + +} opll_t; + +void OPLL_Reset(opll_t *chip, uint32_t chip_type); +void OPLL_Clock(opll_t *chip, int32_t *buffer); +void OPLL_Write(opll_t *chip, uint32_t port, uint8_t data); +#endif