| /* Software floating-point emulation. |
| Definitions for IEEE Quad Precision. |
| Copyright (C) 1997-2019 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Richard Henderson (rth@cygnus.com), |
| Jakub Jelinek (jj@ultra.linux.cz), |
| David S. Miller (davem@redhat.com) and |
| Peter Maydell (pmaydell@chiark.greenend.org.uk). |
| |
| 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. |
| |
| In addition to the permissions in the GNU Lesser General Public |
| License, the Free Software Foundation gives you unlimited |
| permission to link the compiled version of this file into |
| combinations with other programs, and to distribute those |
| combinations without any restriction coming from the use of this |
| file. (The Lesser General Public License restrictions do apply in |
| other respects; for example, they cover modification of the file, |
| and distribution when not linked into a combine executable.) |
| |
| 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef SOFT_FP_QUAD_H |
| #define SOFT_FP_QUAD_H 1 |
| |
| #if _FP_W_TYPE_SIZE < 32 |
| # error "Here's a nickel, kid. Go buy yourself a real computer." |
| #endif |
| |
| #if _FP_W_TYPE_SIZE < 64 |
| # define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE) |
| # define _FP_FRACTBITS_DW_Q (8*_FP_W_TYPE_SIZE) |
| #else |
| # define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE) |
| # define _FP_FRACTBITS_DW_Q (4*_FP_W_TYPE_SIZE) |
| #endif |
| |
| #define _FP_FRACBITS_Q 113 |
| #define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q) |
| #define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q) |
| #define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q) |
| #define _FP_EXPBITS_Q 15 |
| #define _FP_EXPBIAS_Q 16383 |
| #define _FP_EXPMAX_Q 32767 |
| |
| #define _FP_QNANBIT_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE) |
| #define _FP_QNANBIT_SH_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE) |
| #define _FP_IMPLBIT_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE) |
| #define _FP_IMPLBIT_SH_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_FRACBITS_Q-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE) |
| #define _FP_OVERFLOW_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE)) |
| |
| #define _FP_WFRACBITS_DW_Q (2 * _FP_WFRACBITS_Q) |
| #define _FP_WFRACXBITS_DW_Q (_FP_FRACTBITS_DW_Q - _FP_WFRACBITS_DW_Q) |
| #define _FP_HIGHBIT_DW_Q \ |
| ((_FP_W_TYPE) 1 << (_FP_WFRACBITS_DW_Q - 1) % _FP_W_TYPE_SIZE) |
| |
| typedef float TFtype __attribute__ ((mode (TF))); |
| |
| #if _FP_W_TYPE_SIZE < 64 |
| |
| union _FP_UNION_Q |
| { |
| TFtype flt; |
| struct _FP_STRUCT_LAYOUT |
| { |
| # if __BYTE_ORDER == __BIG_ENDIAN |
| unsigned sign : 1; |
| unsigned exp : _FP_EXPBITS_Q; |
| unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); |
| unsigned long frac2 : _FP_W_TYPE_SIZE; |
| unsigned long frac1 : _FP_W_TYPE_SIZE; |
| unsigned long frac0 : _FP_W_TYPE_SIZE; |
| # else |
| unsigned long frac0 : _FP_W_TYPE_SIZE; |
| unsigned long frac1 : _FP_W_TYPE_SIZE; |
| unsigned long frac2 : _FP_W_TYPE_SIZE; |
| unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); |
| unsigned exp : _FP_EXPBITS_Q; |
| unsigned sign : 1; |
| # endif /* not bigendian */ |
| } bits; |
| }; |
| |
| |
| # define FP_DECL_Q(X) _FP_DECL (4, X) |
| # define FP_UNPACK_RAW_Q(X, val) _FP_UNPACK_RAW_4 (Q, X, (val)) |
| # define FP_UNPACK_RAW_QP(X, val) _FP_UNPACK_RAW_4_P (Q, X, (val)) |
| # define FP_PACK_RAW_Q(val, X) _FP_PACK_RAW_4 (Q, (val), X) |
| # define FP_PACK_RAW_QP(val, X) \ |
| do \ |
| { \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_4_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_Q(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_4 (Q, X, (val)); \ |
| _FP_UNPACK_CANONICAL (Q, 4, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_QP(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_4_P (Q, X, (val)); \ |
| _FP_UNPACK_CANONICAL (Q, 4, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_SEMIRAW_Q(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_4 (Q, X, (val)); \ |
| _FP_UNPACK_SEMIRAW (Q, 4, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_SEMIRAW_QP(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_4_P (Q, X, (val)); \ |
| _FP_UNPACK_SEMIRAW (Q, 4, X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_Q(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_CANONICAL (Q, 4, X); \ |
| _FP_PACK_RAW_4 (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_QP(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_CANONICAL (Q, 4, X); \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_4_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_SEMIRAW_Q(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_SEMIRAW (Q, 4, X); \ |
| _FP_PACK_RAW_4 (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_SEMIRAW_QP(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_SEMIRAW (Q, 4, X); \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_4_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN (Q, 4, X) |
| # define FP_NEG_Q(R, X) _FP_NEG (Q, 4, R, X) |
| # define FP_ADD_Q(R, X, Y) _FP_ADD (Q, 4, R, X, Y) |
| # define FP_SUB_Q(R, X, Y) _FP_SUB (Q, 4, R, X, Y) |
| # define FP_MUL_Q(R, X, Y) _FP_MUL (Q, 4, R, X, Y) |
| # define FP_DIV_Q(R, X, Y) _FP_DIV (Q, 4, R, X, Y) |
| # define FP_SQRT_Q(R, X) _FP_SQRT (Q, 4, R, X) |
| # define _FP_SQRT_MEAT_Q(R, S, T, X, Q) _FP_SQRT_MEAT_4 (R, S, T, X, (Q)) |
| # define FP_FMA_Q(R, X, Y, Z) _FP_FMA (Q, 4, 8, R, X, Y, Z) |
| |
| # define FP_CMP_Q(r, X, Y, un, ex) _FP_CMP (Q, 4, (r), X, Y, (un), (ex)) |
| # define FP_CMP_EQ_Q(r, X, Y, ex) _FP_CMP_EQ (Q, 4, (r), X, Y, (ex)) |
| # define FP_CMP_UNORD_Q(r, X, Y, ex) _FP_CMP_UNORD (Q, 4, (r), X, Y, (ex)) |
| |
| # define FP_TO_INT_Q(r, X, rsz, rsg) _FP_TO_INT (Q, 4, (r), X, (rsz), (rsg)) |
| # define FP_TO_INT_ROUND_Q(r, X, rsz, rsg) \ |
| _FP_TO_INT_ROUND (Q, 4, (r), X, (rsz), (rsg)) |
| # define FP_FROM_INT_Q(X, r, rs, rt) _FP_FROM_INT (Q, 4, X, (r), (rs), rt) |
| |
| # define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4 (X) |
| # define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4 (X) |
| |
| # define _FP_FRAC_HIGH_DW_Q(X) _FP_FRAC_HIGH_8 (X) |
| |
| #else /* not _FP_W_TYPE_SIZE < 64 */ |
| union _FP_UNION_Q |
| { |
| TFtype flt /* __attribute__ ((mode (TF))) */ ; |
| struct _FP_STRUCT_LAYOUT |
| { |
| _FP_W_TYPE a, b; |
| } longs; |
| struct _FP_STRUCT_LAYOUT |
| { |
| # if __BYTE_ORDER == __BIG_ENDIAN |
| unsigned sign : 1; |
| unsigned exp : _FP_EXPBITS_Q; |
| _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; |
| _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; |
| # else |
| _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; |
| _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; |
| unsigned exp : _FP_EXPBITS_Q; |
| unsigned sign : 1; |
| # endif |
| } bits; |
| }; |
| |
| # define FP_DECL_Q(X) _FP_DECL (2, X) |
| # define FP_UNPACK_RAW_Q(X, val) _FP_UNPACK_RAW_2 (Q, X, (val)) |
| # define FP_UNPACK_RAW_QP(X, val) _FP_UNPACK_RAW_2_P (Q, X, (val)) |
| # define FP_PACK_RAW_Q(val, X) _FP_PACK_RAW_2 (Q, (val), X) |
| # define FP_PACK_RAW_QP(val, X) \ |
| do \ |
| { \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_2_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_Q(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_2 (Q, X, (val)); \ |
| _FP_UNPACK_CANONICAL (Q, 2, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_QP(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_2_P (Q, X, (val)); \ |
| _FP_UNPACK_CANONICAL (Q, 2, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_SEMIRAW_Q(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_2 (Q, X, (val)); \ |
| _FP_UNPACK_SEMIRAW (Q, 2, X); \ |
| } \ |
| while (0) |
| |
| # define FP_UNPACK_SEMIRAW_QP(X, val) \ |
| do \ |
| { \ |
| _FP_UNPACK_RAW_2_P (Q, X, (val)); \ |
| _FP_UNPACK_SEMIRAW (Q, 2, X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_Q(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_CANONICAL (Q, 2, X); \ |
| _FP_PACK_RAW_2 (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_QP(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_CANONICAL (Q, 2, X); \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_2_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_SEMIRAW_Q(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_SEMIRAW (Q, 2, X); \ |
| _FP_PACK_RAW_2 (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_PACK_SEMIRAW_QP(val, X) \ |
| do \ |
| { \ |
| _FP_PACK_SEMIRAW (Q, 2, X); \ |
| if (!FP_INHIBIT_RESULTS) \ |
| _FP_PACK_RAW_2_P (Q, (val), X); \ |
| } \ |
| while (0) |
| |
| # define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN (Q, 2, X) |
| # define FP_NEG_Q(R, X) _FP_NEG (Q, 2, R, X) |
| # define FP_ADD_Q(R, X, Y) _FP_ADD (Q, 2, R, X, Y) |
| # define FP_SUB_Q(R, X, Y) _FP_SUB (Q, 2, R, X, Y) |
| # define FP_MUL_Q(R, X, Y) _FP_MUL (Q, 2, R, X, Y) |
| # define FP_DIV_Q(R, X, Y) _FP_DIV (Q, 2, R, X, Y) |
| # define FP_SQRT_Q(R, X) _FP_SQRT (Q, 2, R, X) |
| # define _FP_SQRT_MEAT_Q(R, S, T, X, Q) _FP_SQRT_MEAT_2 (R, S, T, X, (Q)) |
| # define FP_FMA_Q(R, X, Y, Z) _FP_FMA (Q, 2, 4, R, X, Y, Z) |
| |
| # define FP_CMP_Q(r, X, Y, un, ex) _FP_CMP (Q, 2, (r), X, Y, (un), (ex)) |
| # define FP_CMP_EQ_Q(r, X, Y, ex) _FP_CMP_EQ (Q, 2, (r), X, Y, (ex)) |
| # define FP_CMP_UNORD_Q(r, X, Y, ex) _FP_CMP_UNORD (Q, 2, (r), X, Y, (ex)) |
| |
| # define FP_TO_INT_Q(r, X, rsz, rsg) _FP_TO_INT (Q, 2, (r), X, (rsz), (rsg)) |
| # define FP_TO_INT_ROUND_Q(r, X, rsz, rsg) \ |
| _FP_TO_INT_ROUND (Q, 2, (r), X, (rsz), (rsg)) |
| # define FP_FROM_INT_Q(X, r, rs, rt) _FP_FROM_INT (Q, 2, X, (r), (rs), rt) |
| |
| # define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2 (X) |
| # define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2 (X) |
| |
| # define _FP_FRAC_HIGH_DW_Q(X) _FP_FRAC_HIGH_4 (X) |
| |
| #endif /* not _FP_W_TYPE_SIZE < 64 */ |
| |
| #endif /* !SOFT_FP_QUAD_H */ |