Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
HDRBK
Control Block Contents
HDRBK DSECT
Cross Reference (Contains links to field and bit definitions)
HDRBK Prolog
NAME : DMSHDRBK DESCRIPTION: Free storage element header DSECT : HDRBK FUNCTION : Mapping macro which maps unallocated pieces of storage within a page.
HDRBK Control Block Content
HDRBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure HDRBK 0000 0 Signed 4 HDRFORWD Pointer to next piece of free storage 0004 4 Signed 4 HDRLEN Size of this piece of free storage
HDRBK Storage Layout
*** HDRBK - Control Block in HDRBK * * +---------------------------+---------------------------+ * 0 | HDRFORWD | HDRLEN | * +---------------------------+---------------------------+ * 8 * *** HDRBK - Control Block in HDRBK
HDRBK Cross Reference
Symbol Dspl Value -------------- ---- ----- HDRFORWD 0000 HDRLEN 0004
Last updated on 28 Jul 2003 at 08:11:15 EDT.
Copyright IBM Corporation, 1990, 2003