PUSH instruction

The PUSH instruction saves the current PRINT, USING, or ACONTROL status in push-down storage on a last-in, first-out basis. You restore this PRINT, USING, or ACONTROL status later, also on a last-in, first-out basis, by using a POP instruction.


                              .-,----------------.   
                              V              (1) |   
>>-+-----------------+--PUSH----+-PRINT----+-----+-------------->
   '-sequence_symbol-'          +-USING----+         
                                '-ACONTROL-'         

>--+----------+------------------------------------------------><
   '-,NOPRINT-'

Notes:

Each keyword from this group can be selected only once.

sequence_symbol: Is a sequence symbol.
PRINT: Instructs the assembler to save the PRINT status in a push-down stack.
USING: Instructs the assembler to save the USING status in a push-down stack.
ACONTROL: Instructs the assembler to save the ACONTROL status in a push-down stack.
NOPRINT: Instructs the assembler to suppress the printing of the PUSH statement in which it is specified.

The PUSH instruction only causes the status of the current PRINT, USING, or ACONTROL instructions to be saved. The PUSH instruction does not:

Change the status of the current PRINT or ACONTROL instructions
Imply a DROP instruction, or change the status of the current USING instructions