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72 lines
2.5 KiB
72 lines
2.5 KiB
/* SPDX-License-Identifier: GPL-2.0+ |
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* |
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* Machine-dependent software floating-point definitions. |
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SuperH kernel version. |
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Copyright (C) 1997,1998,1999 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 ([email protected]), |
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Jakub Jelinek ([email protected]), |
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David S. Miller ([email protected]) and |
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Peter Maydell ([email protected]). |
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*/ |
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#ifndef _SFP_MACHINE_H |
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#define _SFP_MACHINE_H |
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#define _FP_W_TYPE_SIZE 32 |
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#define _FP_W_TYPE unsigned long |
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#define _FP_WS_TYPE signed long |
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#define _FP_I_TYPE long |
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#define _FP_MUL_MEAT_S(R,X,Y) \ |
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_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) |
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#define _FP_MUL_MEAT_D(R,X,Y) \ |
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_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) |
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#define _FP_MUL_MEAT_Q(R,X,Y) \ |
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_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) |
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#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) |
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#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) |
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#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) |
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#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) |
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#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 |
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#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 |
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#define _FP_NANSIGN_S 0 |
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#define _FP_NANSIGN_D 0 |
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#define _FP_NANSIGN_Q 0 |
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#define _FP_KEEPNANFRACP 1 |
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/* |
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* If one NaN is signaling and the other is not, |
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* we choose that one, otherwise we choose X. |
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*/ |
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#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ |
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do { \ |
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if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ |
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&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ |
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{ \ |
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R##_s = Y##_s; \ |
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_FP_FRAC_COPY_##wc(R,Y); \ |
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} \ |
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else \ |
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{ \ |
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R##_s = X##_s; \ |
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_FP_FRAC_COPY_##wc(R,X); \ |
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} \ |
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R##_c = FP_CLS_NAN; \ |
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} while (0) |
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//#define FP_ROUNDMODE FPSCR_RM |
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#define FP_DENORM_ZERO 1/*FPSCR_DN*/ |
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/* Exception flags. */ |
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#define FP_EX_INVALID (1<<4) |
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#define FP_EX_DIVZERO (1<<3) |
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#define FP_EX_OVERFLOW (1<<2) |
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#define FP_EX_UNDERFLOW (1<<1) |
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#define FP_EX_INEXACT (1<<0) |
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#endif |
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