From 9aad9d912f0ea64471669ecde4beea9e9ead4989 Mon Sep 17 00:00:00 2001
From: dfr <dfr@FreeBSD.org>
Date: Wed, 30 Dec 1998 10:38:59 +0000
Subject: Various changes to support OSF1 emulation:

* Move the user stack from VM_MAXUSER_ADDRESS to a place below the 32bit
  boundary (needed to support 32bit OSF programs).  This should also save
  one pagetable per process.
* Add cvtqlsv to the set of instructions handled by the floating point
  software completion code.
* Disable all floating point exceptions by default.
* A minor change to execve to allow the OSF1 image activator to support
  dynamic loading.
---
 sys/powerpc/aim/vm_machdep.c     | 10 +++++-----
 sys/powerpc/powerpc/vm_machdep.c | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

(limited to 'sys/powerpc')

diff --git a/sys/powerpc/aim/vm_machdep.c b/sys/powerpc/aim/vm_machdep.c
index e850785..592a089 100644
--- a/sys/powerpc/aim/vm_machdep.c
+++ b/sys/powerpc/aim/vm_machdep.c
@@ -38,7 +38,7 @@
  *
  *	from: @(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
  *	Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
- *	$Id: vm_machdep.c,v 1.5 1998/12/04 10:52:47 dfr Exp $
+ *	$Id: vm_machdep.c,v 1.6 1998/12/16 15:21:50 bde Exp $
  */
 /*
  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
@@ -151,11 +151,11 @@ cpu_fork(p1, p2)
 	 * Set the floating point state.
 	 */
 	if ((p2->p_addr->u_pcb.pcb_fp_control & IEEE_INHERIT) == 0) {
-		p2->p_addr->u_pcb.pcb_fp_control = (IEEE_TRAP_ENABLE_INV
-						    | IEEE_TRAP_ENABLE_DZE
-						    | IEEE_TRAP_ENABLE_OVF);
+		p2->p_addr->u_pcb.pcb_fp_control = 0;
 		p2->p_addr->u_pcb.pcb_fp.fpr_cr = (FPCR_DYN_NORMAL
-						   | FPCR_INED | FPCR_UNFD);
+						   | FPCR_INVD | FPCR_DZED
+						   | FPCR_OVFD | FPCR_INED
+						   | FPCR_UNFD);
 	}
 
 	/*
diff --git a/sys/powerpc/powerpc/vm_machdep.c b/sys/powerpc/powerpc/vm_machdep.c
index e850785..592a089 100644
--- a/sys/powerpc/powerpc/vm_machdep.c
+++ b/sys/powerpc/powerpc/vm_machdep.c
@@ -38,7 +38,7 @@
  *
  *	from: @(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
  *	Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
- *	$Id: vm_machdep.c,v 1.5 1998/12/04 10:52:47 dfr Exp $
+ *	$Id: vm_machdep.c,v 1.6 1998/12/16 15:21:50 bde Exp $
  */
 /*
  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
@@ -151,11 +151,11 @@ cpu_fork(p1, p2)
 	 * Set the floating point state.
 	 */
 	if ((p2->p_addr->u_pcb.pcb_fp_control & IEEE_INHERIT) == 0) {
-		p2->p_addr->u_pcb.pcb_fp_control = (IEEE_TRAP_ENABLE_INV
-						    | IEEE_TRAP_ENABLE_DZE
-						    | IEEE_TRAP_ENABLE_OVF);
+		p2->p_addr->u_pcb.pcb_fp_control = 0;
 		p2->p_addr->u_pcb.pcb_fp.fpr_cr = (FPCR_DYN_NORMAL
-						   | FPCR_INED | FPCR_UNFD);
+						   | FPCR_INVD | FPCR_DZED
+						   | FPCR_OVFD | FPCR_INED
+						   | FPCR_UNFD);
 	}
 
 	/*
-- 
cgit v1.1