Weekly Classic Computer Trivia Question (20150112)

Johnny Billquist bqt at update.uu.se
Mon Jan 12 20:37:48 CST 2015

On 2015-01-13 03:19, Rick Murphy wrote:
> At 01:17 PM 1/12/2015, Johnny Billquist wrote:
>> And of course, you also have things like OS/8, which runs with
>> interrupts off at all times, to which the answer to the original
>> question would be "OS/8". :-)
> The OS/8 FORTRAN runtime (FRTS) runs with interrupts enabled. OS/8 in
> general doesn't care if interrupts are on, which is how OS/78 (or was it
> OS/278?) symbionts worked. So, you can't blame OS/8 for getting into the
> way. There's nothing typically in OS/8 that requires interrupts to be
> disabled, but it's true that most of OS/8 doesn't do anything to handle
> interrrupts.

By the way. Thanks for reminding me about the OS/8 printer background 
job. I should go back and recheck how that actually did it, as a simple 
interrupt enabled setup will have problems, which I mentioned.

I think it might have been OS/278 only, which also means there might be 
slushware required...


Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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