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Diffstat (limited to 'src/chips/ym3812_lle.cpp')
-rw-r--r-- | src/chips/ym3812_lle.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/chips/ym3812_lle.cpp b/src/chips/ym3812_lle.cpp new file mode 100644 index 0000000..8e39bf6 --- /dev/null +++ b/src/chips/ym3812_lle.cpp @@ -0,0 +1,82 @@ +/* + * Interfaces over Yamaha OPL3 (YMF262) chip emulators + * + * Copyright (c) 2017-2025 Vitaly Novichkov (Wohlstand) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "ym3812_lle.h" +#include "ym3812_lle/nuked_fmopl2.h" +#include "ym3812_lle/nopl2.h" +#include <cstring> + +Ym3812LLEOPL2::Ym3812LLEOPL2() : + OPLChipBaseT() +{ + m_chip = nopl2_init(14318182, m_rate); + setRate(m_rate); +} + +Ym3812LLEOPL2::~Ym3812LLEOPL2() +{ + fmopl2_t *chip_r = reinterpret_cast<fmopl2_t*>(m_chip); + nopl2_shutdown(chip_r); +} + +void Ym3812LLEOPL2::setRate(uint32_t rate) +{ + OPLChipBaseT::setRate(rate); + nopl2_set_rate(m_chip, 14318182, rate); +} + +void Ym3812LLEOPL2::reset() +{ + OPLChipBaseT::reset(); + nopl2_reset(m_chip); +} + +void Ym3812LLEOPL2::writeReg(uint16_t addr, uint8_t data) +{ + nopl2_write(m_chip, 2 * ((addr >> 8) & 3), addr); + nopl2_write(m_chip, 1, data); +} + +void Ym3812LLEOPL2::writePan(uint16_t addr, uint8_t data) +{ + (void)addr; + (void)data; + // Uninmplemented +} + +void Ym3812LLEOPL2::nativeGenerate(int16_t *frame) +{ + nopl2_getsample_one_native(m_chip, frame); +} + +const char *Ym3812LLEOPL2::emulatorName() +{ + return "YM3812-LLE OPL2"; +} + +bool Ym3812LLEOPL2::hasFullPanning() +{ + return false; +} + +OPLChipBase::ChipType Ym3812LLEOPL2::chipType() +{ + return CHIPTYPE_OPL2; +} |