is WAIT affected by Throttle ?

[Paulo Rebordão]

Is the Wait statement in a BP2 program affected by the Throttle setting in Simh?

I suppose it is, but just confirming.

[Johnny Billquist]

Not as such.

simh can suspend execution if a WAIT instruction is done by the PDP-11
in kernel mode, if you do *not* use throttling in simh.

A WAIT in BP2 in itself do not have anything to do with the WAIT
instruction, but if there are no programs wanting to run, then the
kernel will execute a WAIT instruction.

Johnny

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[Johnny Billquist]

Maybe to answer you in another way - the WAIT in BP2 is given a time to
wait, which is independent of the CPU speed. So in that sense even more
so, throttling should not have any impact.

Johnny

[Paulo Rebordão]

If I remove throttling on simh, Wait doesn't stop for the time intended, but Sleep still does it.

[Johnny Billquist]

That's strange. Nothing special about the WAIT in BASIC. It just have a
timeout on the reading based on time. And time is measured independent
of any throttling.

Johnny

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