px(1)px(1)Namepx - Pascal code executor
Syntaxpx [obj[argument...]]
Description
The command interprets the abstract machine code generated by The first
argument is the file to be interpreted, and defaults to obj; remaining
arguments are available to the Pascal program using the built-ins argv
and argc. The command is also invoked by when running `load and go'.
If the program terminates abnormally an error message and a control
flow backtrace are printed. The number of statements executed and
total execution time are printed after normal termination. The p
option of suppresses all of this except the message indicating the
cause of abnormal termination.
Restrictions
Post-mortem traceback is not limited; infinite recursion leads to
almost infinite traceback.
Diagnostics
Most run-time error messages are self-explanatory. Some of the more
unusual ones are:
Reference to an inactive file
A file other than input or output was used before a call to reset
or rewrite.
Statement count limit exceeded
The limit of 500,000 executed statements (which prevents excesâ
sive looping or recursion) has been exceeded.
Bad data found on integer read
Bad data found on real read
Usually, non-numeric input was found for a number. For reals,
Pascal requires digits before and after the decimal point so that
numbers like `.1' or `21.' evoke the second diagnostic.
panic: Some message
Indicates a internal inconsistency detected in probably due to a
Pascal system bug.
Files
obj default object file
pmon.out profile data file
See Alsopi(1), pix(1)
"Berkeley Pascal User's Manual," Supplementary Documents, Volume 2:
Programmer
VAX px(1)