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authorGeoff Keating <geoffk@cygnus.com>2001-12-06 00:12:11 +0000
committerGeoff Keating <geoffk@cygnus.com>2001-12-06 00:12:11 +0000
commit578618390583aa9c1e3dc70b87c1f7d19478e996 (patch)
tree5c566bcdd9bf30c8601b4f34da9cd6893362630f /sysdeps/powerpc/fpu_control.h
parentfa13c459a156097766bedb4f1ca6f86f516e03b3 (diff)
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* sysdeps/powerpc/__longjmp.S: Don't restore FP registers.
* sysdeps/powerpc/fpu/__longjmp.S: Do restore FP registers. * sysdeps/powerpc/setjmp.S: Don't save FP registers. * sysdeps/powerpc/fpu/setjmp.S: Do save FP registers. * sysdeps/powerpc/fclrexcpt.c: Move to... * sysdeps/powerpc/fpu/fclrexcpt.c: ... here. * sysdeps/powerpc/fpu_control.h: Move to... * sysdeps/powerpc/fpu/fpu_control.h: ... here. 2001-12-05 Geoff Keating <geoffk@redhat.com> * sysdeps/powerpc/__longjmp.S: Don't restore FP registers. * sysdeps/powerpc/fpu/__longjmp.S: Do restore FP registers. * sysdeps/powerpc/setjmp.S: Don't save FP registers. * sysdeps/powerpc/fpu/setjmp.S: Do save FP registers. * sysdeps/powerpc/fclrexcpt.c: Move to... * sysdeps/powerpc/fpu/fclrexcpt.c: ... here. * sysdeps/powerpc/fpu_control.h: Move to... * sysdeps/powerpc/fpu/fpu_control.h: ... here.
Diffstat (limited to 'sysdeps/powerpc/fpu_control.h')
-rw-r--r--sysdeps/powerpc/fpu_control.h67
1 files changed, 0 insertions, 67 deletions
diff --git a/sysdeps/powerpc/fpu_control.h b/sysdeps/powerpc/fpu_control.h
deleted file mode 100644
index 7b58b7b..0000000
--- a/sysdeps/powerpc/fpu_control.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/* FPU control word definitions. PowerPC version.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _FPU_CONTROL_H
-#define _FPU_CONTROL_H
-
-/* rounding control */
-#define _FPU_RC_NEAREST 0x00 /* RECOMMENDED */
-#define _FPU_RC_DOWN 0x03
-#define _FPU_RC_UP 0x02
-#define _FPU_RC_ZERO 0x01
-
-#define _FPU_MASK_NI 0x04 /* non-ieee mode */
-
-/* masking of interrupts */
-#define _FPU_MASK_ZM 0x10 /* zero divide */
-#define _FPU_MASK_OM 0x40 /* overflow */
-#define _FPU_MASK_UM 0x20 /* underflow */
-#define _FPU_MASK_XM 0x08 /* inexact */
-#define _FPU_MASK_IM 0x80 /* invalid operation */
-
-#define _FPU_RESERVED 0xffffff00 /* These bits are reserved are not changed. */
-
-/* The fdlibm code requires no interrupts for exceptions. */
-#define _FPU_DEFAULT 0x00000000 /* Default value. */
-
-/* IEEE: same as above, but (some) exceptions;
- we leave the 'inexact' exception off.
- */
-#define _FPU_IEEE 0x000000f0
-
-/* Type of the control word. */
-typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__)));
-
-/* Macros for accessing the hardware control word. */
-#define _FPU_GETCW(cw) ( { \
- union { double d; fpu_control_t cw[2]; } tmp __attribute__ ((__aligned__(8))); \
- __asm__ ("mffs 0; stfd%U0 0,%0" : "=m" (tmp.d) : : "fr0"); \
- (cw)=tmp.cw[1]; \
- tmp.cw[1]; } )
-#define _FPU_SETCW(cw) { \
- union { double d; fpu_control_t cw[2]; } tmp __attribute__ ((__aligned__(8))); \
- tmp.cw[0] = 0xFFF80000; /* More-or-less arbitrary; this is a QNaN. */ \
- tmp.cw[1] = cw; \
- __asm__ ("lfd%U0 0,%0; mtfsf 255,0" : : "m" (tmp.d) : "fr0"); \
-}
-
-/* Default control word set at startup. */
-extern fpu_control_t __fpu_control;
-
-#endif /* _FPU_CONTROL_H */