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* soft-fp/op-common.h (_FP_UNPACK_SEMIRAW): Define. (_FP_OVERFLOW_SEMIRAW): Likewise. (_FP_CHECK_SIGNAN_SEMIRAW): Likewise. (_FP_CHOOSENAN_SEMIRAW): Likewise. (_FP_EXP_NORMAL): Likewise. (_FP_PACK_SEMIRAW): Likewise. (_FP_ADD_INTERNAL): Rewrite to operate on semi-raw value. (_FP_SUB): Likewise. (_FP_TO_INT): Rewrite to operate on raw values. Don't set INVALID exception for conversions where most negative representable integer is correct truncated value, but do set INEXACT for such conversions where appropriate. Don't always left-shift for converting to a wider integer. (_FP_FROM_INT): Rewrite to yield raw value. Correct shift for integers with one more bits than (mantissa + guard) bits for the floating point format. Don't use __FP_FRAC_SRS_1 for shifting integers that may be wider than _FP_W_TYPE_SIZE. (FP_CONV): Don't define. (FP_EXTEND): Define. (FP_TRUNC): Likewise. * soft-fp/op-1.h (_FP_FRAC_SRST_1, __FP_FRAC_SRST_1): Define. (_FP_FRAC_CONV_1_1): Don't define. (_FP_FRAC_COPY_1_1): Define. * soft-fp/op-2.h (_FP_FRAC_SRST_2): Define. (_FP_FRAC_CONV_1_2, _FP_FRAC_CONV_2_1): Don't define. (_FP_FRAC_COPY_1_2, _FP_FRAC_COPY_2_1): Define. * soft-fp/op-4.h (_FP_FRAC_SRST_4): Define. (_FP_FRAC_SRS_4): Define based on _FP_FRAC_SRST_4. (_FP_FRAC_CONV_1_4, _FP_FRAC_CONV_2_4): Don't define. (_FP_FRAC_COPY_1_4, _FP_FRAC_COPY_2_4): Define. (_FP_FRAC_CONV_4_1, _FP_FRAC_CONV_4_2): Don't define. (_FP_FRAC_COPY_4_1, _FP_FRAC_COPY_4_2): Define. * soft-fp/single.h (_FP_FRACTBITS_S): Define. (_FP_FRACXBITS_S): Define in terms of _FP_FRACXBITS_S. (_FP_WFRACXBITS_S): Likewise. (_FP_QNANBIT_SH_S, _FP_IMPLBIT_SH_S): Define. (FP_UNPACK_SEMIRAW_S, FP_UNPACK_SEMIRAW_SP): Define. (FP_PACK_SEMIRAW_S, FP_PACK_SEMIRAW_SP): Define. * soft-fp/double.h (_FP_QNANBIT_SH_D, _FP_IMPLBIT_SH_D): Define. (FP_UNPACK_SEMIRAW_D, FP_UNPACK_SEMIRAW_D): Define (FP_PACK_SEMIRAW_D, FP_PACK_SEMIRAW_DP): Define. * soft-fp/extended.h (_FP_QNANBIT_SH_E, _FP_IMPLBIT_SH_E): Define. (FP_UNPACK_EP): Correct typo. (FP_UNPACK_SEMIRAW_E, FP_UNPACK_SEMIRAW_EP): Define. (FP_PACK_SEMIRAW_E, FP_PACK_SEMIRAW_EP): Define. * soft-fp/quad.h (_FP_QNANBIT_SH_Q, _FP_IMPLBIT_SH_Q): Define. (FP_UNPACK_SEMIRAW_Q, FP_UNPACK_SEMIRAW_QP): Define. (FP_PACK_SEMIRAW_Q, FP_PACK_SEMIRAW_QP): Define. * soft-fp/fixdfdi.c: Use unsigned type for result of conversion. * soft-fp/fixdfsi.c: Likewise. * soft-fp/fixsfdi.c: Likewise. * soft-fp/fixsfsi.c: Likewise. * soft-fp/fixtfdi.c: Likewise. * soft-fp/fixtfsi.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvtxq.c: Likewise. * sysdeps/alpha/soft-fp/ots_nintxq.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtoi.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtoll.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtoi.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtoll.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Likewise. * soft-fp/adddf3.c: Update for changed soft-fp interfaces. * soft-fp/addsf3.c: Likewise. * soft-fp/addtf3.c: Likewise. * soft-fp/extenddftf2.c: Likewise. * soft-fp/extendsfdf2.c: Likewise. * soft-fp/extendsftf2.c: Likewise. * soft-fp/fixdfdi.c: Likewise. * soft-fp/fixdfsi.c: Likewise. * soft-fp/fixsfdi.c: Likewise. * soft-fp/fixsfsi.c: Likewise. * soft-fp/fixtfdi.c: Likewise. * soft-fp/fixtfsi.c: Likewise. * soft-fp/fixunsdfdi.c: Likewise. * soft-fp/fixunsdfsi.c: Likewise. * soft-fp/fixunssfdi.c: Likewise. * soft-fp/fixunssfsi.c: Likewise. * soft-fp/fixunstfdi.c: Likewise. * soft-fp/fixunstfsi.c: Likewise. * soft-fp/floatdidf.c: Likewise. * soft-fp/floatdisf.c: Likewise. * soft-fp/floatditf.c: Likewise. * soft-fp/floatsidf.c: Likewise. * soft-fp/floatsisf.c: Likewise. * soft-fp/floatsitf.c: Likewise. * soft-fp/floatundidf.c: Likewise. * soft-fp/floatundisf.c: Likewise. * soft-fp/floatunditf.c: Likewise. * soft-fp/floatunsidf.c: Likewise. * soft-fp/floatunsisf.c: Likewise. * soft-fp/floatunsitf.c: Likewise. * soft-fp/subdf3.c: Likewise. * soft-fp/subsf3.c: Likewise. * soft-fp/subtf3.c: Likewise. * soft-fp/truncdfsf2.c: Likewise. * soft-fp/trunctfdf2.c: Likewise. * soft-fp/trunctfsf2.c: Likewise. * sysdeps/alpha/soft-fp/ots_add.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvtqux.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvtqx.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvttx.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvtxq.c: Likewise. * sysdeps/alpha/soft-fp/ots_cvtxt.c: Likewise. * sysdeps/alpha/soft-fp/ots_nintxq.c: Likewise. * sysdeps/alpha/soft-fp/ots_sub.c: Likewise. * sysdeps/powerpc/soft-fp/q_add.c: Likewise. * sysdeps/powerpc/soft-fp/q_dtoq.c: Likewise. * sysdeps/powerpc/soft-fp/q_itoq.c: Likewise. * sysdeps/powerpc/soft-fp/q_lltoq.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtod.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtoi.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtoll.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtos.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtou.c: Likewise. * sysdeps/powerpc/soft-fp/q_qtoull.c: Likewise. * sysdeps/powerpc/soft-fp/q_stoq.c: Likewise. * sysdeps/powerpc/soft-fp/q_sub.c: Likewise. * sysdeps/powerpc/soft-fp/q_ulltoq.c: Likewise. * sysdeps/powerpc/soft-fp/q_utoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_add.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_dtoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_itoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_lltoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtod.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtoi.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtoll.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtos.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtou.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_qtoull.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_stoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_sub.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_ulltoq.c: Likewise. * sysdeps/sparc/sparc32/soft-fp/q_utoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_add.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_dtoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtod.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtos.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtoui.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtoux.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_stoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_sub.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Likewise. * sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Likewise.
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/* Software floating-point emulation: convert to fortran nearest.
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Copyright (C) 1997,1999,2004,2006 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Richard Henderson (rth@cygnus.com) and
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Jakub Jelinek (jj@ultra.linux.cz).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "local-soft-fp.h"
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long
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_OtsNintXQ (long al, long ah, long _round)
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{
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FP_DECL_EX;
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FP_DECL_Q(A); FP_DECL_Q(B); FP_DECL_Q(C);
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unsigned long r;
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long s;
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/* If bit 3 is set, then integer overflow detection is requested. */
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s = _round & 8 ? 1 : -1;
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_round = _round & 3;
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FP_INIT_ROUNDMODE;
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FP_UNPACK_SEMIRAW_Q(A, a);
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/* Build 0.5 * sign(A) */
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B_e = _FP_EXPBIAS_Q;
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__FP_FRAC_SET_2 (B, 0, 0);
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B_s = A_s;
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FP_ADD_Q(C, A, B);
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_FP_FRAC_SRL_2(C, _FP_WORKBITS);
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_FP_FRAC_HIGH_RAW_Q(C) &= ~(_FP_W_TYPE)_FP_IMPLBIT_Q;
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FP_TO_INT_Q(r, C, 64, s);
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if (s > 0 && (_fex &= FP_EX_INVALID))
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FP_HANDLE_EXCEPTIONS;
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return r;
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}
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