dbopl OPL3 emulator =================== this is the so-called dbopl opl3 emulator, ripped from DOSBOX svn rev 4391 (November 2020), with full commit history and some tiny touch-ups to make it compile standalone. as of the time of this writing, this is the default OPL emulator used by DOSBOX. Usage: ====== drop files into your project, include dbopl.h, and use in your code: // initialize the chip(s). samplerate is typicallly 44100. DBOPL::Handler chip = DBOPL::Handler(); // write a value into a register. chip.WriteReg(reg, val); // get a sample from the chip. int32_t sample_tmp; int16_t sample; chip.Generate(&tmp, 1); sample = sample_tmp; then compile it and link dbopl.cpp to your code. that's pretty much all there is to it. check https://github.com/digital-sound-antiques/emu2413/blob/master/sample2413.c for a good example of what and how to feed into the chip, and when to read samples (and how many) from it. although the example uses a different chip emulator, the strategy is identical. License ======= unfortunately, the code is licensed as GPL2+. TODO ==== convert to a language that doesn't suck, i.e. C. also it would be nice to poke the original authors whether they could relicense the code as MIT.