This page is devoted to the classic PC soundcard, Adlib, and compatibles.
Me and Matthew Gambrell reverse-engineered the YM3812/YMF262 ROM tables. These are the pictures we took:
The bits of dirt are from my fingers, sorry about that.
See also: Yamaha YMF262 die images.
Exponential table functionality test
Here's an Excel file that shows how to use the exponential table.
Adlib-DigiSnap (ads.pdf) is a device that is capable of recording Adlib (OPL2/YM3812) digitally. Want to build one? Now you can! You will also need the PCB film and the MSDOS driver (with source code, also a newer version 2009/01/11 with everything for compiling it is here).
Adlib Megamix № 1