Type ASSEMBLE
Source Lines : 1,683
Fixes Applied : 2
Most Recent Version : Tuesday, December 12, 1978
Last Fix ID : [HRC004DS]
Module
DMSASN *
Function
TO ALLOW THE USER TO ASSOCIATE SYSTEM OR PROGRAMMER *
LOGICAL UNITS WITH THE PHYSICAL HARDWARE DEVICE. *
THE ASSGN COMMAND WILL BE USED WITH CMS/DOS AND CMS *
VSAM. *
*
Attributes
TRANSIENT; SERIALLY REUSABLE. *
Operation
THE SIMULATED DOS/VS SUPERVISOR CONTAINS TWO CONTROL *
BLOCKS WHICH ARE MANIPULATED BY THE ASSGN COMMAND: *
THE LUB (LOGICAL UNIT BLOCK) AND THE PUB (PHYSICAL *
UNIT BLOCK). CMS/DOS WILL SUPPORT 255 LUBS *
WHICH IS CONSISTENT WITH DOS/VS AND 18 PUBS *
CORRESPONDING WITH THE 18 CMS SUPPORTED DEVICE TYPES. *
FIRST, THE PLIST IS SCANNED FOR INVALID PARAMETERS *
AND SPECIFIED OPTIONS, IF ANY. THE SYSXXX PARAMETER *
IS THEN CONVERTED TO THE CORRESPONDING 2 BYTE *
ENTRY CORRESPONDING TO A SYSTEM LOGICAL UNIT OR A *
PROGRAMMER LOGICAL UNIT. *
*
THE DEVICE PARAMETER IS THEN ANALYZED TO SEE WHETHER *
TERMINAL, PRINTER, PUNCH, READER, TAP1, TAP2, TAP3, *
TAP4, DISK MODE LETTER A - G, S,Y,Z, IGN OR UA *
WAS SPECIFIED. *
*
INFORMATION IS STORED IN THE LUB AND PUB ENTRIES *
DEPENDING ON THE DEVICE TYPE AS FOLLOWS: *
*
*
Calls to Other Routines
DMSLAD *
*