[email protected] (Shmuel Metz , Seymour J.) writes: > 384KiB? We ran PCP on 128 and MFT II on 256. I know of places that ran > on 64.
i started on on 64kbyte 360/30 running PCP (i think it was around release 6). I had student job to port 1401 MPIO (tape<->unit record front-end to 709) to 360/30 (360/30 had 1401 hardware emulation, so MPIO could directly run ... so I guess it was just part of exercise transitioning to 360). It was eventually 2000 assembler statements (cards, i.e. box) ... had conditional assembly, one was "stand-alone" (i got to design & implement my own interrupt handlers, device drivers, error recovery, storage management, dispatcher, etc) and the other ran with six DCBs under os/360. The "stand-alone" version took approx. 30mins elapsed time to assemble, the "os/360" version (same 2000 cards just change to conditional assemble) took another 30mins elapsed (60mins total) to assemble ... you could watch lights on 360/30 and recognize when it hit DCB macro which took about five mins elapsed time each. -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
