| /* Machine-dependent software floating-point definitions. |
| SuperH kernel version. |
| Copyright (C) 1997,1998,1999 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 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. */ |
| |
| #ifndef _SFP_MACHINE_H |
| #define _SFP_MACHINE_H |
| |
| #define _FP_W_TYPE_SIZE 32 |
| #define _FP_W_TYPE unsigned long |
| #define _FP_WS_TYPE signed long |
| #define _FP_I_TYPE long |
| |
| #define _FP_MUL_MEAT_S(R,X,Y) \ |
| _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) |
| #define _FP_MUL_MEAT_D(R,X,Y) \ |
| _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) |
| #define _FP_MUL_MEAT_Q(R,X,Y) \ |
| _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) |
| |
| #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) |
| #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) |
| #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) |
| |
| #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) |
| #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 |
| #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 |
| #define _FP_NANSIGN_S 0 |
| #define _FP_NANSIGN_D 0 |
| #define _FP_NANSIGN_Q 0 |
| |
| #define _FP_KEEPNANFRACP 1 |
| |
| /* |
| * If one NaN is signaling and the other is not, |
| * we choose that one, otherwise we choose X. |
| */ |
| #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ |
| do { \ |
| if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ |
| && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ |
| { \ |
| R##_s = Y##_s; \ |
| _FP_FRAC_COPY_##wc(R,Y); \ |
| } \ |
| else \ |
| { \ |
| R##_s = X##_s; \ |
| _FP_FRAC_COPY_##wc(R,X); \ |
| } \ |
| R##_c = FP_CLS_NAN; \ |
| } while (0) |
| |
| //#define FP_ROUNDMODE FPSCR_RM |
| #define FP_DENORM_ZERO 1/*FPSCR_DN*/ |
| |
| /* Exception flags. */ |
| #define FP_EX_INVALID (1<<4) |
| #define FP_EX_DIVZERO (1<<3) |
| #define FP_EX_OVERFLOW (1<<2) |
| #define FP_EX_UNDERFLOW (1<<1) |
| #define FP_EX_INEXACT (1<<0) |
| |
| #endif |
| |
