Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
CFEBK
Control Block Contents
CFEBK DSECT
Cross Reference (Contains links to field and bit definitions)
CFEBK Prolog
Name : HCPCFEBK Description: Map the HCPIODCW resident data area DSECT : CFEBK Function : Map system variables that are set during system initialization. For non ESAME machines use the old X'7FFFFF02' address for CP forced errors. For ESAME capable machines use the new X'8FFFFF02' address. ESAME machines guaranty that bit 0 in the CCW data address will be checked late (at data access time). Located by : HCPIODcw Created by : HCPIIOrl Deleted by : none
CFEBK Control Block Content
CFEBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CFEBK Map the HCPIODCW resident data area CP-Forced program check 0000 0 Signed 4 CFEPRGAD X'7FFFFF02' or X'8FFFFF02' CP-Forced protection check 0004 4 Signed 4 CFEPRTAD X'7FFFFF04' or X'8FFFFF04' CP-Forced interface control check 0008 8 Signed 4 CFEIFCAD X'7FFFFF06' or X'8FFFFF06' CP-Forced incorrect length 000C 12 Signed 4 CFEICLAD X'7FFFFF08' or X'8FFFFF08' CP-Forced protection check in IDA 0010 16 Signed 4 CFEIDAPT X'7FFFF800' or X'8FFFF800' CP-Forced program check in IDA 0014 20 Signed 4 CFEIDAPG X'FFFFFF02' CP-Forced storage errors for fmt2 0018 24 Signed 4 CFEIDAPC IDAWs X'FFFFF000' 0000001C CFEBKBYL *-CFEBK 00000004 CFEBKDSZ ((CFEBKBYL+7)/8) Doubleword length of CFEBK
CFEBK Storage Layout
*** CFEBK - Map the HCPIODCW resident data area * * +---------------------------+---------------------------+ * 0 | CFEPRGAD | CFEPRTAD | * +---------------------------+---------------------------+ * 8 | CFEIFCAD | CFEICLAD | * +---------------------------+---------------------------+ * 10 | CFEIDAPT | CFEIDAPG | * +---------------------------+---------------------------+ * 18 | CFEIDAPC | 1C * +---------------------------+ * *** CFEBK - Map the HCPIODCW resident data area
CFEBK Cross Reference
Symbol Dspl Value -------------- ---- ----- CFEBKBYL 0018 0000001C CFEBKDSZ 0018 00000004 CFEICLAD 000C CFEIDAPC 0018 CFEIDAPG 0014 CFEIDAPT 0010 CFEIFCAD 0008 CFEPRGAD 0000 CFEPRTAD 0004
Last updated on 5 Jun 2001 at 13:01:56 EDT.
Copyright IBM Corporation, 1990, 2001