Text: label

       Name: label                                                   [Show more]
       Type: Subroutine
   Category: Text
    Summary: Send a two-byte OSWRCH command to the I/O processor
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DOCOL calls label
             * DOVDU19 calls label


 This routine sends a command to the I/O processor, along with the parameter
 byte from the top of the stack.


 Arguments:

   A                    The command byte to send to the I/O processor

   Top of stack         The parameter to send to the I/O processor


.label

 JSR OSWRCH             \ Send the command byte in A to the I/O processor

 PLA                    \ Retrieve the parameter from the stack

 JMP OSWRCH             \ Send the parameter in A to the I/O processor, and
                        \ return from the subroutine using a tail call