home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Power-Programmierung
/
CD1.mdf
/
emulate
/
systems
/
pc370
/
cpy
/
ihascb.cpy
< prev
next >
Wrap
Text File
|
1987-11-08
|
1KB
|
24 lines
*********************************************************************
*
* ASCB - ADDRESS SPACE CONTROL BLOCK FOR PC/370 RELEASE 2.0+
*
*********************************************************************
*
* THIS CONTROL BLOCK IS INITIALIZED BY THE PC/370 EMULATOR AT
* 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 DOC\SYSTEM.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 PROT.)
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