Re: OPNA (YM2608) based soundcard for IBM PCs and compatibles possible?
Posted on 2022-05-03, 01:47
On PC-98s, the OPN(A) on sound boards defaults to INT5 (which is IRQ 12) and I/O port 188h. PC-98s aren't IBM compatible though (with many things completely different). Now IRQ 12 on IBMs is used by the PS/2 mouse port if there is one, while I couldn't find anything that uses I/O port 188h on IBMs. …