From: Richard Atkinson (rga24_at_cantab.net)
Date: 2002-09-12 11:29:42
What were the address maps of the popular C64 MIDI interfaces? There seem to have been a few of them, all slightly different. I think the strange mapping of the Sound Expander cartridge thru port is intended to make the MIDI cartridges appear the same. Any info on C64 MIDI standards would be gratefully appreciated. See http://www.funet.fi/pub/cbm/schematics/cartridges/c64/sfx/sfx-sch.gif for the details of the cartrige thru port. Richard Message was sent through the cbm-hackers mailing list
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