diff options
| -rw-r--r-- | engines/sci/sound/drivers/midi.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/engines/sci/sound/drivers/midi.cpp b/engines/sci/sound/drivers/midi.cpp index ba4e719c92..7cc4e1922c 100644 --- a/engines/sci/sound/drivers/midi.cpp +++ b/engines/sci/sound/drivers/midi.cpp @@ -441,9 +441,9 @@ void MidiPlayer_Midi::sendMt32SysEx(const uint32 addr, Common::SeekableReadStrea _sysExBuf[7 + i] = str->readByte(); for (int i = 4; i < 7 + len; i++) - chk += _sysExBuf[i]; + chk -= _sysExBuf[i]; - _sysExBuf[7 + len] = 128 - chk % 128; + _sysExBuf[7 + len] = chk & 0x7f; if (noDelay) _driver->sysEx(_sysExBuf, len + 8); |