PDP-10 Archive: 4-documentation/info.tco from bb-d868c-bm_tops20_v4_2020

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TOPS20 Change Order Number 4.2069

Written by: R.ACE		27-Oct-78 07:39:15

Edit checked: YES			   Document: NO
  TCO Tested: YES		Maintenance Release: NO
Hardware-related: NO

Program: INFO

Related TCO's:
Related SPR's: 


Problem: WHEN A USER PROGRAM GIVES INFO AN ASCII STRING AS THE
ARGUMENT, INFO CAN FAIL TO MATCH THE STRING WITH A STRING IN ITS
MEMORY IF ANY CORRESPONDING WORDS IN THE STRINGS DIFFER IN BIT
POSITION 35.  THIS SHOULD NOT HAPPEN FOR ASCII TEXT (I.E. THE
CONTENTS OF BIT 35 SHOULD BE IGNORED BY INFO).

Diagnosis: INFO NOT CODED TO IGNORE BIT 35 OF ASCII TEXT.

Solution: CHANGE INFO TO RESET BIT 35 OF ALL TEXT IT RECEIVES
FROM USER PROGRAMS.

TOPS20 Change Order Number 4.2099

Written by: R.ACE		29-Nov-78 08:49:18

Edit checked: NO			   Document: YES
  TCO Tested: NO		Maintenance Release: NO
Hardware-related: NO

Program: INFO

Related TCO's:
Related SPR's: 


Problem: NEED MECHANISM TO INFORM MTCON WHEN CERTAIN PID'S ARE DELETED

Diagnosis: 

Solution: CREATE NEW FUNCTION FOR <SYSTEM>INFO
FUNCTION = .IPCIK
ARGUMENT = "WATCHED" PID (IN WORD .IPCI2)
WHEN "WATCHED" PID IS DELETED, INFO SENDS A MESSAGE TO THE PID THAT
MADE THE REQUEST, WITH .IPCKM IN THE IP%CFE FIELD AND THE DELETED PID
IN WORD .IPCI1 OF THE MESSAGE.  WHEEL/OPERATOR/IPCF PRIVILEGES REQUIRED.