home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Fritz: All Fritz
/
All Fritz.zip
/
All Fritz
/
FILES
/
PROGBLER
/
PC37030.LZH
/
PC37030.ZIP
/
ASCB.DOC
next >
Wrap
Text File
|
1987-04-19
|
1KB
|
23 lines
*********************************************************************
*
* ASCB - ADDRESS SPACE CONTROL BLOCK FOR PC/370 RELEASE 2.0+
*
*********************************************************************
*
* THIS CONTROL BLOCK IS INITIALIZED BY THE PC/370 EMULATOR AT EXECUTION
* TIME FOR THE MAIN PROGRAM COM FILE AND IS LOCATED AT VIRTUAL MEMORY
* ADDRESS X'104'. THIS CONTROL BLOCK IS ALSO CREATED FOR EACH ATTACHED
* COM PROGRAM ADDRESS SPACE DURING ATTACH SVC 26 EXECUTION (SEE SVC.DOC).
*
*********************************************************************
ASCB DSECT
ASCIDR DS CL4 ASCB IDENTIFIER C'ASCB'
ASCNXT DS A ABSOLUTE ADDRESS OF NEXT DAUGHTER TASK ASCB
ASCPRV DS A ABSOLUTE ADDRESS OF PREVIOUS MOTHER TASK ASCB
ASCASO DS A ABSOLUTE ADDRESS OF ADDRESS SPACE ORIGIN
ASCASL DS F LENGTH OF ADDRESS SPACE (USED FOR ADDRESS PROTECTION)
ASCASF DS A RELATIVE ADDRESS OF FIRST FREE QUEUE ELEMENT (FQE)
ASCENT DS A RELATIVE ADDRESS OF ENTRY POINT (FROM COM PREFIX)
ASCEXT DS A RELATIVE ADDRESS OF RETURN IN MOTHER TASK ASCB
LASCB EQU *-ASCB