Type ASSEMBLE
Source Lines : 295
Fixes Applied : 0
Most Recent Version : Friday, December 8, 1978
Last Fix ID : [Unmodified]
Function
NAME AND DISPLACEMENT WIHTIN THE MODULE.
Attributes
NON-REUSABLE
Operation
DMMIDM CAN BE ENTERED. THEY ARE AS FOLLOWS:
1. FROM THE PRG.CHK RTN. WITH THE
FAILING ADDRESS WITHIN THE FIXED
NUCLEUS.
2. FROM THE PROGRAM CHECK ROUTINE WITH
THE FAILING ADDRESS IN A PAGEABLE
MODULE.
3. FROM THE CODED ABEND ROUTINE WITH
BASE REGISTER ADDR.(FROM ONE OF THE
SAVEAREAS BALR,FREE OR SAVEAREA)
WITHIN THE FIXED NUCLEUS.
4. FROM THE CODED ABEND ROUTINE WITH
BASE REG ADDR. IN A PAGED MODULE.
CONDITION 1
USING THE FAILURE ADDRESS SEARCH THE COMPRESSED LOAD MOD
MAP FOR A MODULE NAME IN THE FAILURE ADDRESS RANGE. THIS
WILL BE THE ENTRY POINT NAME AND IS MOVED TO THE PROBLEM
REPORT. THE FIRST SIX CHARACTERS IS THE MODULE NAME AND IS
ALSO MOVED TO THE PROBLEM REPORT. THE COMPRESSED LOAD IS
NOW SEARCHED BACKWARDS TO FIND THE MODULE STARTING ADDRESS.
THE STARTING ADDRESS IS SUBTRACTED FROM THE FAILURE ADDRESS
TO DETERMINE THE DISPL. WITHIN THE MODULE OF THE FAILURE
AND THE DISPLACEMENT IS MOVED TO THE PROBLEM REPORT.
CONDITION 2
REGISTER 12 ADDRESS, FROM THE REGISTERS AT ABEND, IS PASSED
TO ROUTINE DMMGRC TO READ THE FAILING PAGE INTO THE WORK
BUFFER. THE MODULE NAME IS MOVED TO THE PROBLEM REPORT.
THE ADDRESS IN REGISTER 12 IS SUBTRACTED FROM THE FAILING
ADDRESS TO GET THE DISPLACEMENT WITHIN THE MODULE OF THE
FAILURE. THE DISPLACEMENT IS MOVED TO THE PROBLEM REPORT.
CONDITION 3
ENTERED WITH REGISTER 12 AND 14, OF THE MODULE CALLING THE
ABENDING ROUTINE, IN THE PARAMETER LIST. THE MODULE NAME
IS DETERMINED USING REGISTER 12 AND A COMPRESSED LOAD
MOD MAP SEARCH. THE DISPLACEMENT WITHIN THE CALLER IS
FOUND BY SUBTRACTING THE ADDRESS IN REGISTER 12 FROM THE
ADDRESS IN REGISTER 14.
CONDITION 4
REGISTER 12 OF THE CALLING MODULE IS PASSED TO DMMGRC
TO READ IN THE PAGE. THE MODULE NAME IS MOVED TO THE
PROBLEM REPORT. THE DISPLACEMENT WITHIN THE CALLER IS
FOUND BY SUBTRACTING THE ADDRESS IN REGISTER 12 FROM THE
ADDRESS IN REGISTER 14.
Calls to Other Routines
THE WORK BUFFER
DMMTRN - TO TRANSLATE THE DISPLACEMENT
FORM BINARY TO ZONED FORMAT