(FILECREATED "12-Dec-85 16:36:48" {ERIS}<PROLOGCORE>PATCH>ALLOCPATCH.;1
 1824   

      changes to:  (VARS ALLOCPATCHCOMS)
		   (FNS \ALLOCVIRTUALPAGEBLOCK)

      previous date: "12-Dec-85 16:29:57" {ERIS}<PROLOGCORE>PATCH>ALLOCPATCH.;2)


(* Copyright (c) 1985 by Xerox Corporation. All rights reserved.)

(PRETTYCOMPRINT ALLOCPATCHCOMS)

(RPAQQ ALLOCPATCHCOMS
 ((FNS \ADVANCE.ARRAY.SEGMENTS)))
(DEFINEQ

(\ADVANCE.ARRAY.SEGMENTS

  [LAMBDA (NXTPAGE)                                          (* bvm: "12-Dec-85 16:18")


          (* * Called when the first 8mb are exhausted, and we want to switch array space into the next area, starting with 

	  page NXTPAGE -- have to first clean up what's left in the old area)



    (
PROG
 (NCELLSLEFT)
	    (SETQ.NOREF \ArrayFrLst2 (
COND

			  ((
IGEQ
 [
SETQ
 NCELLSLEFT
				     (
IPLUS
 (UNFOLD (
SUB1
 (
IDIFFERENCE
 \NxtArrayPage
									     (fetch
 (POINTER PAGE#)
										of
 \ArrayFrLst)))
						      CELLSPERPAGE)
					      (
IDIFFERENCE
 CELLSPERPAGE (fetch
 (POINTER 
										       CELLINPAGE)
									     of
 \ArrayFrLst]
				   \MinArrayBlockSize)       (* Make the rest of the already allocated array space 

							     into a small block)

			    (
\MERGEBACKWARD
 (
\MAKEFREEARRAYBLOCK
 \ArrayFrLst NCELLSLEFT))
			    (create
 POINTER
				      PAGE# ← \LeastMDSPage))
			  (T \ArrayFrLst)))
	    [SETQ.NOREF \ARRAYSPACE2 (SETQ.NOREF \ArrayFrLst (create
 POINTER
								       PAGE# ←(
SETQ
 \NxtArrayPage 
									 NXTPAGE]
                                                             (* Return code to tell \ALLOCBLOCK.NEW to notice the 

							     new arrangement)

	    (
RETURN
 0])
)
(PUTPROPS ALLOCPATCH COPYRIGHT ("Xerox Corporation" 1985))
(DECLARE: DONTCOPY
  (FILEMAP (NIL (405 1743 (\ADVANCE.ARRAY.SEGMENTS 415 . 1741)))))
STOP