Utility routines: SCLI2

       Name: SCLI2                                                   [Show more]
       Type: Subroutine
   Category: Utility routines
    Summary: Execute an OS command, setting the SVN flag while it's running
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * CATS calls SCLI2
             * DELT calls SCLI2


 SVN is set to 255 before the command is run, to indicate that disc access is
 in progress, and is reset to 0 once it has finished.


 Arguments:

   (Y X)                The address of a string containing the command to run,
                        terminated by a carriage return (ASCII 13)


.SCLI2

 LDA #255               \ Set the SVN flag to 255
 JSR DODOSVN

 JSR OSCLI              \ Call OSCLI to execute the OS command at (Y X)

 LDA #0                 \ Set A = 0 for the new value of the SVN flag

                        \ Fall through into DODOSVN to set the SVN flag to 0