From: Jim Brain (brain_at_jbrain.com)
Date: 2004-06-16 03:54:24
>The LISTEN, UNLISTEN, TALK, and UNTALK functions send EOI and flush the >buffer, if there is a byte waiting in it. You stopped that act when you >disabled UNTALK/UNLISTEN. CLOSE and the second OPEN worked because you >didn't disable TALK/LISTEN. So, your idea that EOI is the trigger probably >is correct. > > Hmm, now I need a third opinion. >The channels allow us to override their assumptions -- if the SAVE function >added ",p,w", then we couldn't change it. > >Channel Assumption >------- ---------- > 0 ",p,r" > 1 ",p,w" > 2-14 ",r" (any file-type) > >Example: >We can give the BASIC command: > save "0:program,u",8 >The program on the disk will be marked as USR. A standard LOAD of that >file will be rejected. But, > load "0:program,u",8 >will be accepted! > > But, it doesn;t seem to be completely able to be overridden. I tried open 1,8,1,"filename,p,r" and it did not read any bytes in (all zeroes, as I recall.). I'll check as soon as I can again on this. (Had a new baby last night, so a bit of a priority inversion...) Jim -- Jim Brain, Brain Innovations email@example.com http://www.jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.