PC Ephemera

[Jim Leonard]

jim stephens wrote:
> / without tape interface) and the XT

This reminds me:  I have a music program that claimed to send multi-voice sound 
through either the PC speaker or the cassette interface.  While I know how it 
did this feat through the PC speaker (tied the speaker to a timer port and 
pulsed), I have no idea how the cassette interface stuff worked.  Other than 
BIOS calls, is there any documentation out there (port addresses, etc.) on the 
cassette interface?  I have a 5150 right here I'd love to dork around with.
-- 
Jim Leonard (trixter at oldskool.org)                    http://www.oldskool.org/
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