Fix i386/fe* routines

[Andreas Jaeger]

As reported by Arnaud on the glibc-bug list, the changes for SSE are not
correct (compare with the x86-64 routines).

Ok to commit? 

Andreas

2003-06-15  Andreas Jaeger  <aj@suse.de>

	* sysdeps/i386/fpu/feenablxcpt.c (feenableexcept): Correct setting
	of MXCSR.
	* sysdeps/i386/fpu/fedisblxcpt.c (fedisableexcept): Likewise.
	* sysdeps/i386/fpu/feholdexcpt.c (feholdexcept): Likewise.
	Reported by Arnaud Desitter
	<arnaud.desitter@geography.oxford.ac.uk>.

============================================================
Index: sysdeps/i386/fpu/feenablxcpt.c
--- sysdeps/i386/fpu/feenablxcpt.c	29 Apr 2003 07:17:24 -0000	1.5
+++ sysdeps/i386/fpu/feenablxcpt.c	15 Jun 2003 19:39:45 -0000
@@ -46,7 +46,7 @@ feenableexcept (int excepts)
       /* Get the current control word.  */
       __asm__ ("ldmxcsr %0" : "=m" (*&xnew_exc));
 
-      xnew_exc &= ~excepts;
+      xnew_exc &= ~(excepts << 7);
 
       __asm__ ("stmxcsr %0" : : "m" (*&xnew_exc));
     }
============================================================
Index: sysdeps/i386/fpu/fedisblxcpt.c
--- sysdeps/i386/fpu/fedisblxcpt.c	29 Apr 2003 07:17:24 -0000	1.5
+++ sysdeps/i386/fpu/fedisblxcpt.c	15 Jun 2003 19:39:45 -0000
@@ -46,7 +46,7 @@ fedisableexcept (int excepts)
       /* Get the current control word.  */
       __asm__ ("stmxcsr %0" : "=m" (*&xnew_exc));
 
-      xnew_exc |= excepts;
+      xnew_exc |= (excepts << 7);
 
       __asm__ ("ldmxcsr %0" : : "m" (*&xnew_exc));
     }
============================================================
Index: sysdeps/i386/fpu/feholdexcpt.c
--- sysdeps/i386/fpu/feholdexcpt.c	29 Apr 2003 07:17:24 -0000	1.5
+++ sysdeps/i386/fpu/feholdexcpt.c	15 Jun 2003 19:39:45 -0000
@@ -44,7 +44,7 @@ feholdexcept (fenv_t *envp)
       __asm__ ("stmxcsr %0" : "=m" (*&xwork));
 
       /* Set all exceptions to non-stop.  */
-      work |= 0x1f80;
+      xwork |= 0x1f80;
 
       __asm__ ("ldmxcsr %0" : : "m" (*&xwork));
     }

-- 
 Andreas Jaeger, SuSE Linux AG, aj@suse.de, http://www.suse.de/~aj
  GPG fingerprint = 93A3 365E CE47 B889 DF7F  FED1 389A 563C C272 A126
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