DEFINE (AMEMSIZE,100)%# MAX. SIZE OF ARGLIST MEMORY (BYTES)
COMMON /CARGS/ TTYFLG, RUNPTR, INPTR, OUTPTR, ERRPTR, NARGS,
   MEMOFF, AMEM(AMEMSIZE), PEEK
   INTEGER TTYFLG%# NO IF NO COMMAND LINE WAS TYPED
   INTEGER RUNPTR%# POINTER TO NAME OF NEXT PROGRAM OR 0
   INTEGER INPTR%# POINTER TO STANDARD INPUT NAME OR 0
   INTEGER OUTPTR%# POINTER TO STANDARD OUTPUT NAME OR 0
   INTEGER ERRPTR%# POINTER TO STANDARD ERROR NAME OR 0
   INTEGER NARGS%# NUMBER OF ARGUMENTS
   INTEGER MEMOFF%# OFFSET FOR ADDRESSING MEMORY
   INTEGER AMEM%%# USE TO ADDRESS MEMORY
   CHARACTER PEEK%# LOOKAHEAD CHARACTER FOR ATOK
