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Purpose: Close all files Call address: $FFE7 (hex) 65511 (decimal) Communication registers: None Preparatory routines: None Error returns: None Stack requirements: 11 Registers affected: A, X |
Description:
This routine closes all open files. When this routine is called, the pointers into the open file table are reset, closing all files. Also, the CLRCHN routine is automatically called to reset the I/O channels.
How to Use:
EXAMPLE:
JSR CLALL ;CLOSE ALL FILES AND SELECT DEFAULT I/O CHANNELS
JMP RUN ;BEGIN EXECUTION