diff options
author | 2025-02-01 00:13:31 +0100 | |
---|---|---|
committer | 2025-02-01 00:13:42 +0100 | |
commit | 077ac12495bc8fe31614e950c90d4ad41a102217 (patch) | |
tree | 3ee15cd98d778dc172c851d0365f1d886f1dbae6 /3rdparty | |
parent | 61c150428847ed2ad9a847d6dcab46c25e5dd020 (diff) |
ymfm_opl: actually emulate opl2 waveform enable bit
Diffstat (limited to '3rdparty')
-rw-r--r-- | 3rdparty/ymfm/src/ymfm_opl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/3rdparty/ymfm/src/ymfm_opl.h b/3rdparty/ymfm/src/ymfm_opl.h index 843e5b274d2..a6c6bc2ca71 100644 --- a/3rdparty/ymfm/src/ymfm_opl.h +++ b/3rdparty/ymfm/src/ymfm_opl.h @@ -52,7 +52,7 @@ namespace ymfm // // System-wide registers: // 01 xxxxxxxx Test register -// --x----- Enable OPL compatibility mode [OPL2 only] (1 = enable) +// --x----- Enable OPL compatibility mode [OPL2 only] (0 = enable) // 02 xxxxxxxx Timer A value (4 * OPN) // 03 xxxxxxxx Timer B value // 04 x------- RST @@ -243,7 +243,7 @@ public: uint32_t op_decay_rate(uint32_t opoffs) const { return byte(0x60, 0, 4, opoffs); } uint32_t op_sustain_level(uint32_t opoffs) const { return byte(0x80, 4, 4, opoffs); } uint32_t op_release_rate(uint32_t opoffs) const { return byte(0x80, 0, 4, opoffs); } - uint32_t op_waveform(uint32_t opoffs) const { return IsOpl2Plus ? byte(0xe0, 0, newflag() ? 3 : 2, opoffs) : 0; } + uint32_t op_waveform(uint32_t opoffs) const { return (IsOpl2Plus && waveform_enable()) ? byte(0xe0, 0, newflag() ? 3 : 2, opoffs) : 0; } protected: // return a bitfield extracted from a byte |