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Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/setfpucw.c')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/setfpucw.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/setfpucw.c b/sysdeps/unix/sysv/linux/alpha/setfpucw.c
deleted file mode 100644
index a7e3a55812..0000000000
--- a/sysdeps/unix/sysv/linux/alpha/setfpucw.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* Set FP exception mask and rounding mode.
- Copyright (C) 1996, 1997, 1998, 2003 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. */
-
-#include <fpu_control.h>
-#include <asm/fpu.h>
-
-extern void __ieee_set_fp_control (unsigned long);
-libc_hidden_proto(__ieee_set_fp_control)
-
-extern unsigned long __ieee_get_fp_control (void);
-libc_hidden_proto(__ieee_get_fp_control)
-
-static inline unsigned long
-rdfpcr (void)
-{
- unsigned long fpcr;
- asm ("excb; mf_fpcr %0" : "=f"(fpcr));
- return fpcr;
-}
-
-
-static inline void
-wrfpcr (unsigned long fpcr)
-{
- asm volatile ("mt_fpcr %0; excb" : : "f"(fpcr));
-}
-
-
-void
-__setfpucw (fpu_control_t fpu_control)
-{
- unsigned long fpcr = 0, fpcw = 0;
-
- if (!fpu_control)
- fpu_control = _FPU_DEFAULT;
-
- /* first, set dynamic rounding mode: */
-
- fpcr = rdfpcr();
- fpcr &= ~FPCR_DYN_MASK;
- switch (fpu_control & 0xc00)
- {
- case _FPU_RC_NEAREST: fpcr |= FPCR_DYN_NORMAL; break;
- case _FPU_RC_DOWN: fpcr |= FPCR_DYN_MINUS; break;
- case _FPU_RC_UP: fpcr |= FPCR_DYN_PLUS; break;
- case _FPU_RC_ZERO: fpcr |= FPCR_DYN_CHOPPED; break;
- }
- wrfpcr(fpcr);
-
- /* now tell kernel about traps that we like to hear about: */
-
- fpcw = __ieee_get_fp_control();
- fpcw &= ~IEEE_TRAP_ENABLE_MASK;
-
- if (!(fpu_control & _FPU_MASK_IM)) fpcw |= IEEE_TRAP_ENABLE_INV;
- if (!(fpu_control & _FPU_MASK_DM)) fpcw |= IEEE_TRAP_ENABLE_UNF;
- if (!(fpu_control & _FPU_MASK_ZM)) fpcw |= IEEE_TRAP_ENABLE_DZE;
- if (!(fpu_control & _FPU_MASK_OM)) fpcw |= IEEE_TRAP_ENABLE_OVF;
- if (!(fpu_control & _FPU_MASK_PM)) fpcw |= IEEE_TRAP_ENABLE_INE;
-
- __fpu_control = fpu_control; /* update global copy */
-
- __ieee_set_fp_control(fpcw);
-}