ibm:vm370-lib:rscs:dmtvec.assemble_src
Table of Contents
DMTVEC Source
References
- Fixes Applied : 0
- This Source Date : Thursday, December 7, 1978
- Last Fix ID : [Unmodified]
Source Listing
- DMTVEC.ASSEMBLE.txt
- VEC TITLE 'DMTVEC (RSCS) VM/370 - RELEASE 6' 00001000
- *. 00002000
- * MODULE NAME - 00003000
- * 00004000
- * DMTVEC 00005000
- * 00006000
- * FUNCTION - 00007000
- * 00008000
- * THE DMTVEC MODULE DESCRIBES THE FIXED ADDRESS 00009000
- * STORAGE UTILIZATION FOR MSUP, BEGINNING AT MAIN 00010000
- * STORAGE ADDRESS X'200'. STORAGE UTILIZATION OF THE 00011000
- * FIRST 512 BYTES OF MAIN STORAGE IS DEFINED BY 00012000
- * S/370 ARCHITECTURE, AND IS USED BY MSUP 00013000
- * EXCLUSIVELY FOR THE PURPOSES SO DEFINED. THIS AREA 00014000
- * IS NOT INCLUDED IN THE DMTVEC MODULE TO 00015000
- * FACILITATE INITIAL SYSTEM LOADING (THE CONTENTS OF 00016000
- * THE MACHINE DEFINED LOW ADDRESS STORAGE ARE 00017000
- * INITIALIZED BY DMTINI AT IPL TIME). 00018000
- * 00019000
- * ATTRIBUTES - 00020000
- * 00021000
- * THERE IS NO EXECUTABLE CODE IN THIS MODULE 00022000
- * 00023000
- * 00024000
- * EXTERNAL REFERENCES - 00025000
- * 00026000
- * DMTMAPMS - ADDR OF START OF MAIN (VIRTUAL) STORAGE MAP 00027000
- * DMTMAPQU - ADDR OF START OF SUPERVISOR QUEUE 00028000
- * DMTMAPQE - ADDR OF END OF SUPERVISOR QUEUE 00029000
- * 00030000
- * DMTQRQ - ADDR OF SUP QUEUE MANAGER REQUEST ENTRY 00031000
- * DMTDSP - ADDR OF DISPATCHER ENTRY 00032000
- * 00033000
- * DMTWAT - ADDR OF WAIT REQUEST ENTRY 00034000
- * DMTPST - ADDR OF POST REQUEST ENTRY 00035000
- * DMTIOMRQ - ADDR OF I/O REQUEST ENTRY 00036000
- * DMTASK - ADDR OF TASK SERVICE REQUEST ENTRY 00037000
- * DMTSTO - ADDR OF MAIN STORAGE REQUEST ENTRY 00038000
- * DMTASY - ADDR OF ASYNCH SERVICE REQUEST ENTRY 00039000
- * DMTSIG - ADDR OF ALERT SERVICE REQUEST ENTRY 00040000
- * DMTGIV - ADDR OF GIVE SERVICE REQUEST ENTRY 00041000
- * DMTAKE - ADDR OF TAKE SERVICE REQUEST ENTRY 00042000
- * 00043000
- * 00044000
- * TABLES / WORKAREAS - 00045000
- * 00046000
- * NONE 00047000
- * 00048000
- * NOTES - 00049000
- * 00050000
- * THE EXTERNAL ADDRESSES LISTED ABOVE ARE CONTAINED IN 00051000
- * VCONS WHICH ARE AT FIXED LOW STORAGE LOCATIONS, AND WHICH 00052000
- * ARE LOADED BY ALL PARTS OF THE SYSTEM FOR SUPERVISOR 00053000
- * LINKAGE. 00054000
- * 00055000
- * OPERATION - 00056000
- * 00057000
- * 00058000
- * STARTING AT MAIN STORAGE ADDRESS X'200', DMTVEC 00059000
- * DEFINES: 00060000
- * 1. FIELDS FOR USE BY THE MSUP EXECUTION 00061000
- * CONTROL SYSTEM, INCLUDING A DISPATCHEE NEW 00062000
- * PSW FIELD, A TWO FULLWORD SAVE AREA, A 00063000
- * ONE-BYTE ID OF THE LAST DISPATCHED TASK, AND 00064000
- * A THREE-BYTE ADDRESS OF THE TASK ELEMENT FOR 00065000
- * THAT TASK; 00066000
- * 00067000
- * 2. A FULLWORD ADDRESS OF THE MAIN STORAGE 00068000
- * MAP, AND A FULLWORD COUNT OF TOTAL PAGES IN 00069000
- * MAIN STORAGE (CONTIGUOUS, STARTING WITH PAGE 00070000
- * 0); 00071000
- * 00072000
- * 3. TEN FULLWORD ADDRESSES DESCRIBING THE 00073000
- * SUPERVISOR STATUS QUEUE CONFIGURATION; 00074000
- * 00075000
- * 4. ELEVEN FULLWORD ADDRESSES OF ENTRY POINTS 00076000
- * FOR THE VARIOUS SUPERVISOR SERVICE ROUTINES; 00077000
- * 00078000
- * 5. EIGHT FULLWORDS (INITIALIZED TO 0) FOR USE 00079000
- * AT THE TASK PROGRAMMING LEVEL. 00080000
- * 00081000
- *. 00082000
- EJECT 00083000
- PUNCH 'SLC 000200' 00084000
- SPACE 00085000
- DMTVEC CSECT 00086000
- SPACE 00087000
- * LOADING TO BEGIN AT X'200' TO LEAVE ROOM FOR MACHINE 00088000
- * EXTENSIONS AND PACIFY THE LOADER ... 00089000
- SPACE 00090000
- NEWPSW DC D'0' DISPATCHED PSW FOR LAST DISPATCHEE 00091000
- SSAVE DC 2F'0' GENERAL PURPOSE LOW CORE SAVE AREA 00092000
- ACTIVE DC X'00' ID OF CURRENTLY ACTIVE TASK WHEN RUNNING DISPATCHE 00093000
- DC AL3(0) ADDRESS OF TASK ELEMENT FOR LAST DISPATCHEE 00094000
- SPACE 00095000
- MAINMAP DC V(DMTMAPMS) ADDR OF START OF MAIN CORE ALLOCATION MAP 00096000
- MAINSIZE DC F'0' NUMBER OF PAGES IN ALL OF MAIN STORAGE 00097000
- QUEUE DC V(DMTMAPQU) ADDR OF START OF SUPERVISOR QUEUE 00098000
- QUEUEND DC V(DMTMAPQE) ADDR OF END OF LAST SUP QUEUE ELEMENT 00099000
- FREEQ DC A(0) ADDRESS OF START OF FREE ELEMENT QUEUE 00100000
- TASKQ DC A(0) ADDRESS OF START OF TASK ELEMENT QUEUE 00101000
- MPXIOQ DC A(0) ADDRESS OF START OF MULTIPLEXOR I/O QUEUE 00102000
- SELIOQ DC A(0) ADDRESS OF START OF SELECTOR I/O QUEUE 00103000
- IOEXITQ DC A(0) ADDRESS OF START OF ASYNCH I/O REQ ELEMENT QUEUE 00104000
- EXTQ DC A(0) ADDRESS OF START OF EXTERNAL REQ ELEMENT QUEUE 00105000
- ALERTQ DC A(0) ADDRESS OF START OF TASK ASYNCH REQ ELEMENT QUEUE 00106000
- GIVEQ DC A(0) ADDRESS OF START OF GIVE REQUEST ELEMENT QUEUE 00107000
- SPACE 00108000
- QREQ DC V(DMTQRQ) SUP QUEUE ALLOCATION REQUEST ENTRY ADDRESS 00109000
- DISPATCH DC V(DMTDSP) TASK DISPATCHER ENTRY ADDRESS 00110000
- SPACE 00111000
- WAITREQ DC V(DMTWAT) WAIT REQUEST ENTRY ADDRESS 00112000
- POSTREQ DC V(DMTPST) POST REQUEST ENTRY ADDRESS 00113000
- IOREQ DC V(DMTIOMRQ) I/O REQUEST ENTRY ADDRESS 00114000
- TASKREQ DC V(DMTASK) TASK MANAGEMENT REQUEST ENTRY ADDRESS 00115000
- MAINREQ DC V(DMTSTO) MAIN ALLOCATION REQUEST ENTRY ADDRESS 00116000
- ASYNREQ DC V(DMTASY) ASYNCH INTERRUPT REQUEST ENTRY ADDRESS 00117000
- ALERTREQ DC V(DMTSIG) TASK ASYNCH SIGNAL REQUEST ENTRY ADDRESS 00118000
- GIVEREQ DC V(DMTGIV) TASK REQUEST SEND REQUEST ENTRY ADDRESS 00119000
- TAKEREQ DC V(DMTAKE) TASK REQUEST DELIVER REQUEST ENTRY ADDRESS 00120000
- SPACE 00121000
- TVECTOR0 DC A(0) TASK DEFINED FIELD 00122000
- TVECTOR1 DC A(0) TASK DEFINED FIELD 00123000
- TVECTOR2 DC A(0) TASK DEFINED FIELD 00124000
- TVECTOR3 DC A(0) TASK DEFINED FIELD 00125000
- TVECTOR4 DC A(0) TASK DEFINED FIELD 00126000
- TVECTOR5 DC A(0) TASK DEFINED FIELD 00127000
- TVECTOR6 DC A(0) TASK DEFINED FIELD 00128000
- TVECTOR7 DC A(0) TASK DEFINED FIELD 00129000
- END 00130000
ibm/vm370-lib/rscs/dmtvec.assemble_src.txt · Last modified: 2023/08/06 13:39 by Site Administrator