UUCJEFF@ECNCDC.BITNET (07/22/88)
Regarding the reader who wanted to have MIDI THRU, I know of no quick way to do it. However, it isnt too hard. Revector the MIDI IN routine to a vector which writes the MIDI byte received to the MIDI OUTPUT port. The midi vector is obtained thru the Kbdvbase() function, and the address of the midi input routine is kbp->kb_midivec. Write a routine in assembler which writes the received MIDI byte to the Midi port. I dont recommend using Bconout or Midiws, this is inside an interupt and I have had problems using them, it is also more efficient to write the MIDI OUT port directly. Basically, it is just an address, but you have to check the status, etc. But you can copy the code directly if you have Abacus Internals or the OS listings from the developers kit. After you have the MIDI byte outputed, simply jump to the original address you got from kbp->kb_midivec. That is roughly how it is done. I have rewritten the MIDI input routine, not to do THRU, but I have it set up so that it goes into some data structures more useful to me. It really isnt that tough. Good luck, Jeff Beer, UUCJEFF@ECNCDC.BITNET