xnu-792.25.20.tar.gz

[apple/xnu.git] / osfmk / ppc / _setjmp.s

diff --git a/osfmk/ppc/_setjmp.s b/osfmk/ppc/_setjmp.s
index 9cf5fe7d3921e1cfc2b44aca9b6156eb8f438c6a..cfe3d05cffab5289b3d8fe59bb2cf37fc78e5255 100644 (file)
--- a/osfmk/ppc/_setjmp.s
+++ b/osfmk/ppc/_setjmp.s
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -84,8 +81,8 @@ ENTRY(_setjmp,TAG_NO_FRAME_USED)
        stw     r0,    88(ARG0)  /* Fixed point exception register */
 
 #if FLOATING_POINT_SUPPORT     /* TODO NMGS probably not needed for kern */ 
-       mffs    r0
-       stw     r0,    92(ARG0)  /* Floating point status register */
+       mffs    f0                              /* get FPSCR in low 32 bits of f0 */
+       stfiwx  f0,    92(ARG0)  /* Floating point status register */
 
        stfd    f14,   96(ARG0)  /* Floating point context - 8 byte aligned */
        stfd    f15,  104(ARG0)
@@ -156,8 +153,8 @@ ENTRY(_longjmp, TAG_NO_FRAME_USED)  /* TODO NMGS - need correct tag */
        mtxer   r0
 
 #ifdef FLOATING_POINT_SUPPORT
-       lwz     r0,    92(ARG0)  /* Floating point status register */
-       mtfs    r0
+       lfd     f0,  92-4(ARG0)  /* get Floating point status register in low 32 bits of f0 */
+       mtfsf    0xFF,f0         /* restore FPSCR */
 
        lfd     f14,   96(ARG0)  /* Floating point context - 8 byte aligned */
        lfd     f15,  104(ARG0)