Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM. |
HDRBK
PrologControl Block Contents
HDRBK DSECT
Storage Layout
Cross Reference
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 Free storage element header 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 - Free storage element header * * +---------------------------+---------------------------+ * 0 | HDRFORWD | HDRLEN | * +---------------------------+---------------------------+ * 8 * *** HDRBK - Free storage element header
HDRBK Cross Reference
Symbol Dspl Value -------------- ---- ----- HDRFORWD 0000 HDRLEN 0004
Last updated on 2 Apr 2001 at 15:43:08 EDT.
Copyright IBM Corporation, 1990, 2001