To use the PASCAL compilor:

 R PASCAL

*FOO.PAS

If no errors,it will say that and then you can run your program by:

.RU FOO
Then when it types the prompt * you hit carriage return.

A manual can be obtained from PMF (Mike Farmwald) for copying.
Tom McWilliams is also an expert (TM).

Note that PASCAL is not supported, indeed the trivial program
PRO1.PAS[1,REM] generates the NO ERROR DETECTED message during
compilation, but then generates ADDRESS CHECK FOR DEVICE TTY<N>
when attempt is made to run the resultant object program.