HELP VEDPOPREADY                               R. Barrett, February 1986

The variable VEDPOPREADY holds a procedure which is called before
VEDDOINTERRUPT (the value of *INTERRUPT in VED). Its default value is
*SETPOP.

You can trap interrupts in VED by assigning *POPREADY to VEDPOPREADY.
This aids the debugging of programs since you can inspect the value
local variables had when the error handler was called.

See also HELP
    *POPREADY  - Invokes compiler recursively. Useful for interrupts.
    *INTERRUPT - On POP-11 interrupt procedures
    *SETPOP    - Resets the POP-11 system
    *MISHAP    - POP-11 error procedures
    *PRMISHAP  - Prints error messages; user-redefinable
