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/* Install given floating-point control modes. IA64 version.
Copyright (C) 2016-2020 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, see
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
#define FPSR_STATUS 0x1f80UL
#define FPSR_STATUS_ALL ((FPSR_STATUS << 6) | (FPSR_STATUS << 19) \
| (FPSR_STATUS << 32) | (FPSR_STATUS << 45))
int
fesetmode (const femode_t *modep)
{
femode_t mode;
/* As in fesetenv. */
if (((fenv_t) modep >> 62) == 0x03)
mode = (femode_t) modep & 0x3fffffffffffffffUL;
else
mode = *modep;
femode_t fpsr;
__asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
fpsr = (fpsr & FPSR_STATUS_ALL) | (mode & ~FPSR_STATUS_ALL);
__asm__ __volatile__ ("mov.m ar.fpsr=%0;;" :: "r" (fpsr));
return 0;
}
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