REXX Instructions

Abstract

The REXX language provides the following instructions:

• ADDRESS Set current command environment

• ARG Get argument

• CALL Invoke routine (exception handler)

• DO Start of DO-block

• DROP Free variable

• EXIT Exit

• IF — THEN — [ELSE] Conditional processing

• INTERPRET Process run-time statement

• ITERATE Iterate DO-loop

• LEAVE Leave DO-loop

• NOP No-instruction

• NUMERIC Set numeric options

• OPTIONS Set language processor options

• PARSE Parse data

• PROCEDURE Define start of procedure

• PULL Retrieve element from stack

• PUSH Place element at end of the stack

• QUEUE Place element at start of the stack

• RETURN Return from routine

• SAY Display

• SELECT Define start of SELECT-block

• SIGNAL Exception handler processing

• TRACE Set debugging option

• UPPER Transform to uppercase

• = Assign

• commands.

The villainy you teach me I will execute, and it shall go hard but I will better the instruction.

The Merchant of Venice

William Shakespeare