TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

GLOSSARY
Priority interrupt
An interrupt that usurps control of the computer from the program
or monitor and jumps to an interrupt service routine if its
priority is higher than the interrupt currently being serviced.
Privileged program
Process
1. Any program running under prcject number 1, progranuner number
2.
2. A monitor support program executed by a monitor conunand which
has the JACCT (job status) bit set, for example, LOGOUT.
A collection of segments that perform a particular task.
synonymous with "job," "program," or "task."
Usually
Program
1. The complete plan for the solution of a problem, more
specifically the complete sequence of machine instructions
and routines necessary to solve a problem.
2. A collection of routines which have been linked and loaded to
produce a saved file or a core image. These routines
typically consist of a main program and a set of subroutines,
some of which may have come from a library.
Program counter (PC)
A register that contains the address from which the next
instruction to be executed is fetched. At the beginning of each
instruction on a PDP-10, the PC normally contains an address that
is one greater than the location of the previous instruction.
Programmed operators
Instructions which, instead of performing a hardware operation,
cause a jump into the monitor system or the user area at a
predetermined point and perform a software operation. The
monitor (or special user code) interprets these entries as
conunands from the user program to perform specified operations.
Program origin
The location assigned by LINK to relocatable zero of a program.
Program trap
One of the software-defined operation codes which, when decoded
by the processor, causes the next instruction to be executed from
a specified address.
Project-programmer number
Two octal numbers,
a unit, identify
structure.
separated by conunas, which, when considered as
the user and his file storage area on a file
Gloss-29