diff --git a/compiler/mips/parms.lisp b/compiler/mips/parms.lisp
index 23a9a4ce7208dae0147cc0bcf89207f89a1425e8..fca6557fe9918db7339f71b9ecdd1bc47efee7ed 100644
--- a/compiler/mips/parms.lisp
+++ b/compiler/mips/parms.lisp
@@ -7,11 +7,11 @@
 ;;; Scott Fahlman or slisp-group@cs.cmu.edu.
 ;;;
 (ext:file-comment
-  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/parms.lisp,v 1.101 1992/05/21 16:30:47 wlott Exp $")
+  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/parms.lisp,v 1.102 1992/06/09 23:46:07 wlott Exp $")
 ;;;
 ;;; **********************************************************************
 ;;;
-;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/parms.lisp,v 1.101 1992/05/21 16:30:47 wlott Exp $
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/parms.lisp,v 1.102 1992/06/09 23:46:07 wlott Exp $
 ;;;
 ;;;    This file contains some parameterizations of various VM
 ;;; attributes for the MIPS.  This file is separate from other stuff so 
@@ -45,6 +45,7 @@
 (setf (backend-fasl-file-version *target-backend*) 4)
 (setf (backend-register-save-penalty *target-backend*) 3)
 (setf (backend-byte-order *target-backend*) :little-endian)
+(setf (backend-page-size *target-backend*) 4096)
 
 ); eval-when
 
diff --git a/compiler/rt/params.lisp b/compiler/rt/params.lisp
index e78a7fe737121191f6d9915dfc26affabc52a030..913461e9092d849088c1390049826f04495e20bf 100644
--- a/compiler/rt/params.lisp
+++ b/compiler/rt/params.lisp
@@ -7,7 +7,7 @@
 ;;; Lisp, please contact Scott Fahlman (Scott.Fahlman@CS.CMU.EDU)
 ;;; **********************************************************************
 ;;;
-;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/rt/params.lisp,v 1.12 1992/03/10 08:57:55 wlott Exp $
+;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/rt/params.lisp,v 1.13 1992/06/09 23:46:32 wlott Exp $
 ;;;
 ;;; This file contains some parameterizations of various VM attributes for the
 ;;; IBM RT.  This file is separate from other stuff, so we can compile and
@@ -66,6 +66,7 @@
 (setf (backend-fasl-file-version *target-backend*) 1)
 (setf (backend-register-save-penalty *target-backend*) 3)
 (setf (backend-byte-order *target-backend*) :big-endian)
+(setf (backend-page-size *target-backend*) 4096)
 
 ) ;eval-when
 
diff --git a/compiler/sparc/parms.lisp b/compiler/sparc/parms.lisp
index 40e4d4e723da718d2a534e5dc623c47129e2d483..6c9ed2315b228d9070b0551482e51b20100ef1c0 100644
--- a/compiler/sparc/parms.lisp
+++ b/compiler/sparc/parms.lisp
@@ -7,7 +7,7 @@
 ;;; Scott Fahlman or slisp-group@cs.cmu.edu.
 ;;;
 (ext:file-comment
-  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/parms.lisp,v 1.17 1992/05/24 15:57:20 ram Exp $")
+  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/sparc/parms.lisp,v 1.18 1992/06/09 23:46:19 wlott Exp $")
 ;;;
 ;;; **********************************************************************
 ;;;
@@ -36,6 +36,8 @@
 (setf (backend-fasl-file-version *target-backend*) 4)
 (setf (backend-register-save-penalty *target-backend*) 3)
 (setf (backend-byte-order *target-backend*) :big-endian)
+(setf (backend-page-size *target-backend*)
+      #+mach 4096 #+sunos 8192)
 
 ); eval-when