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PDP-10 Archives
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decuslib20-02
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decus/20-0057/warn.inf
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FASBOL WARNING TO VM USERS
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The standard DECUS FASBOL compiler and FASBOL programs go wrong if they
go virtual. The symptom is usually that the program goes to sleep.
The reason is that FASBOL uses the last 1K of core - where DEC puts the
page fault handler.
A revised version of FASBOL which runs under VM monitors is available
from DECUS, but you may want (or need) to run the standard version.
For example you can use the standard system to build the VM version.
The FASBOL compiler and programs run correctly under a VM system,
provided that they never go virtual; so if you want to run them
you must ensure that you have a sufficiently high physical limit
and physical guideline.
.SET PHYSICAL LIMIT 100P
is sufficient to run the compiler to compile the FASBOL system.
Smaller compilations can make do with less core.
Don't forget that FASBOL programs tend to grow once they start running.