diff options
Diffstat (limited to 'sysdeps/powerpc/q_qtoull.c')
-rw-r--r-- | sysdeps/powerpc/q_qtoull.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/sysdeps/powerpc/q_qtoull.c b/sysdeps/powerpc/q_qtoull.c deleted file mode 100644 index e0b84d3..0000000 --- a/sysdeps/powerpc/q_qtoull.c +++ /dev/null @@ -1,65 +0,0 @@ -/* 128-bit floating point to 64-bit fixed point unsigned 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> - -/* unsigned long long _q_qtoull(const long double *a); - Convert 'a' to unsigned long long by truncation. - - Special cases: - -0: return 0 - NaN: raise VXCVI, return 0 - SNaN: raise VXSNAN, VXCVI, and return 0 - Negative numbers (other than -0, but including -Inf): raise VXCVI, return 0 - >= 2^32: raise VXCVI, return 0xffffffffffffffff - */ - -unsigned long long -__q_qtoull(const unsigned long long a[2]) -{ - int ax; - unsigned result; - unsigned long long a0, a1; - - /* Deal with non-special cases. */ - a0 = a[0]; a1 = a[1]; - ax = (a0 >> 48) - 16383; - if (ax <= 63) - /* 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. */ - return ((a0 << 15 | a1 >> 64-15 | 0x8000000000000000ULL) >> 63-ax - & -(unsigned long long)(ax >> 31)); - - /* 'result' is 1 if a is negative, 0 otherwise. */ - result = a0 >> 63; - /* Check for -0, otherwise raise VXCVI. */ - if (a0 != 0x8000000000000000ULL || a[1] != 0) - { - /* 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. */ - result |= cntlzw(~(a0 >> 32) & 0x7fff0000) >> 5; - - set_fpscr_bit(FPSCR_VXCVI); - } - return result-1LL; -} |