summaryrefslogtreecommitdiff
path: root/sysdeps/powerpc/q_qtoll.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/powerpc/q_qtoll.c')
-rw-r--r--sysdeps/powerpc/q_qtoll.c64
1 files changed, 0 insertions, 64 deletions
diff --git a/sysdeps/powerpc/q_qtoll.c b/sysdeps/powerpc/q_qtoll.c
deleted file mode 100644
index 77a54f8bf9..0000000000
--- a/sysdeps/powerpc/q_qtoll.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* 128-bit floating point to 64-bit fixed point signed integer.
- Copyright (C) 1997 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <quad_float.h>
-
-/* long long _q_qtoll(const long double *a);
- Convert 'a' to signed long long by truncation.
-
- Special cases:
- NaN: raise VXCVI, return 0x8000000000000000
- SNaN: raise VXSNAN, VXCVI, and return 0x8000000000000000
- >= 2^32: raise VXCVI, return 0x7fffffffffffffff
- <= -2^32: raise VXCVI, return 0x8000000000000000
- */
-
-long long
-__q_qtoll(const unsigned long long a[2])
-{
- int ax, sgn;
- unsigned long long a0, a1;
-
- a0 = a[0]; a1 = a[1];
- /* 'sgn' is -1 if 'a' is negative, 0 if positive. */
- sgn = (long long)a0 >> 63;
- ax = (a0 >> 48 & 0x7fff) - 16383;
- /* Deal with non-special cases. */
- if (ax <= 62)
- /* If we had a '>>' operator that behaved properly with respect to
- large shifts, we wouldn't need the '& -(ax >> 31)' term, which
- clears 'result' if ax is negative. The '^ sgn) - sgn' part is
- equivalent in this case to multiplication by 'sgn', but faster. */
- return (((a0 << 15 | a1 >> 64-15 | 0x8000000000000000ULL) >> 63-ax
- & -(unsigned long long)(ax >> 31))
- ^ (long long)sgn) - sgn;
-
- /* Check for SNaN, if so raise VXSNAN. */
- if ((a0 >> 32 & 0x7fff8000) == 0x7fff0000
- && (a1 | a0 & 0x00007fffffffffffULL) != 0)
- set_fpscr_bit(FPSCR_VXSNAN);
-
- /* Treat all NaNs as large negative numbers. */
- sgn |= -cntlzw(~(a0 >> 32) & 0x7fff0000) >> 5;
-
- /* All the specials raise VXCVI. */
- set_fpscr_bit(FPSCR_VXCVI);
-
- return (long long)sgn ^ 0x7fffffffffffffffLL;
-}