Function Name: CLOSE

Purpose: Close a logical file
Call address: $FFC3 (hex) 65475 (decimal)
Communication registers:A
Preparatory routines: None
Error returns: 0,240 (See READST)
Stack requirements: 2+
Registers affected: A, X, Y

Description: This routine is used to close a logical file after all I/O operations have been completed on that file. This routine is called after the accumulator is loaded with the logical file number to be closed (the same number used when the file was opened using the OPEN routine).

How to Use:

  1. Load the accumulator with the number of the logical file to be closed.
  2. Call this routine.


   ;CLOSE 15
   LDA #15