^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* Machine-dependent software floating-point definitions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) Alpha kernel version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) This file is part of the GNU C Library.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) Contributed by Richard Henderson (rth@cygnus.com),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) Jakub Jelinek (jakub@redhat.com) and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) David S. Miller (davem@redhat.com).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) The GNU C Library is free software; you can redistribute it and/or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) modify it under the terms of the GNU Library General Public License as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) published by the Free Software Foundation; either version 2 of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) License, or (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) The GNU C Library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) Library General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) You should have received a copy of the GNU Library General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) License along with the GNU C Library; see the file COPYING.LIB. If
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) not, write to the Free Software Foundation, Inc.,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #ifndef _SFP_MACHINE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define _SFP_MACHINE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define _FP_W_TYPE_SIZE 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define _FP_W_TYPE unsigned long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define _FP_WS_TYPE signed long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define _FP_I_TYPE long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define _FP_MUL_MEAT_S(R,X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define _FP_MUL_MEAT_D(R,X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define _FP_MUL_MEAT_Q(R,X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_1_udiv(D,R,X,Y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define _FP_NANFRAC_S _FP_QNANBIT_S
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define _FP_NANFRAC_D _FP_QNANBIT_D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define _FP_NANFRAC_Q _FP_QNANBIT_Q
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define _FP_NANSIGN_S 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define _FP_NANSIGN_D 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define _FP_NANSIGN_Q 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define _FP_KEEPNANFRACP 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* Alpha Architecture Handbook, 4.7.10.4 sais that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * we should prefer any type of NaN in Fb, then Fa.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) R##_s = Y##_s; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) _FP_FRAC_COPY_##wc(R,X); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) R##_c = FP_CLS_NAN; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /* Obtain the current rounding mode. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define FP_ROUNDMODE mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define FP_RND_NEAREST (FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define FP_RND_ZERO (FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define FP_RND_PINF (FPCR_DYN_PLUS >> FPCR_DYN_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define FP_RND_MINF (FPCR_DYN_MINUS >> FPCR_DYN_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* Exception flags. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define FP_EX_INVALID IEEE_TRAP_ENABLE_INV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define FP_EX_OVERFLOW IEEE_TRAP_ENABLE_OVF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define FP_EX_UNDERFLOW IEEE_TRAP_ENABLE_UNF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define FP_EX_DIVZERO IEEE_TRAP_ENABLE_DZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define FP_EX_INEXACT IEEE_TRAP_ENABLE_INE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define FP_EX_DENORM IEEE_TRAP_ENABLE_DNO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define FP_DENORM_ZERO (swcr & IEEE_MAP_DMZ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* We write the results always */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define FP_INHIBIT_RESULTS 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #endif