Type ASSEMBLE
Source Lines : 4,419
Fixes Applied : 15
Most Recent Version : Tuesday, December 12, 1978
Last Fix ID : [HRC342DS]
Module
DMSEDI (EDIT)
Function
TO MODIFY THE CONTENTS OF AN EXISTING FILE OR TO CREATE
A NEW FILE.
Attributes
DISK RESIDENT
Operation
THE EDIT MODULE IS LOADED INTO STORAGE BY THE EDIT
INITIALIZATION MODULE, DMSEDX. IT MAY RESIDE IN A
DISCONTIGUOUS SEGMENT OR IN USER STORAGE. DMSEDX
GETS FREE STORAGE FOR AND INITIALIZES THE EDIT
FREE WORKING STORAGE (EDCB), THEN LOADS AND
BRANCHES TO THE EDIT MODULEWITH REGISTER 1
CONTAINING THE ADDRESS OF EDCB.
UPON ENTRY, A MESSAGE IS TYPED TELLING THE
USER HE IS IN THE EDIT ENVIRONMENT AND 'WAITRD' IS CALLED
TO READ A LINE FROM THE TERMINAL. IF A NULL LINE IS ENTERED,
ANOTHER READ FROM THE TERMINAL IS EXECUTED.
IF THE LINE IS NOT NULL, THE FIRST ENTRY ON THE LINE IS
ASSUMED TO BE AN EDIT SUB-COMMAND; IF IT IS, A BRANCH IS
TAKEN TO THE APPROPRIATE EDIT SUB-ROUTINE TO PROCESS THE
COMMAND.
IF THE FIRST ENTRY IS NOT RECOGNIZED AS A SUB-COMMAND,
AN ERROR MESSAGE IS ISSUED TO THE TERMINAL AND ANOTHER
READ IS ISSSUED TO THE TERMINAL.
Calls to Other Routines
DMSSCR - WRITE TO DISPLAY TERMINAL
DMSBWR - WRITE A FILE TO DISK
DMSBRD - READ A FILE FROM DISK
DMSSTT - VERIFY EXISTENCE OF A FILE
DMSRNM - ALTER FILEID
DMSCWRB - TYPE INFORMATION TO USER CONSOLE
DMSCWT - WAIT ON CONSOLE I/O
DMSCRD - WAIT ON CONSOLE RESPONSE
DMSCAT - STACK CONSOLE INPUT
DMSERS - ERASE UTILITY FILES
DMSFNS - 'CLOSE' A FILE