The PCjr Speech Adapter sidecar is rumored to be identical to the PS/2
version, at least as far as the BIOS support on the adapter goes.
I'd like to play around with mine, but the only programming notes I can
find are in BASIC using some assembler hidden in some DATA statements.
If I get really desperate I can extract the relevant code from the DATA
statements, but I'm hoping somebody has the tech ref.
Thanks,
Mike