chipsynth

A Plogue developer shows the custom electronic test rigs built to measure the Sega Mega Drive/Genesis sound chip (YM2612) for the chipsynth MD emulation. It covers the years of testing and reverse engineering needed to reproduce the chip's quirks accurately.

An episode of Plogue's chipresearch series on emulating the Yamaha DX7 from the hardware up. It covers the sub CPU and main CPU, address map investigation, cartridges, firmware analysis and a skeleton MAME driver.