^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* Software floating-point emulation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) Basic two-word fraction declaration and manipulation.
^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 (jj@ultra.linux.cz),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) David S. Miller (davem@redhat.com) and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) Peter Maydell (pmaydell@chiark.greenend.org.uk).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) The GNU C Library is free software; you can redistribute it and/or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) modify it under the terms of the GNU Library General Public License as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) published by the Free Software Foundation; either version 2 of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) License, or (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) The GNU C Library is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) Library General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) You should have received a copy of the GNU Library General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) License along with the GNU C Library; see the file COPYING.LIB. If
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) not, write to the Free Software Foundation, Inc.,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #ifndef __MATH_EMU_OP_2_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define __MATH_EMU_OP_2_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define _FP_FRAC_DECL_2(X) _FP_W_TYPE X##_f0 = 0, X##_f1 = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define _FP_FRAC_COPY_2(D,S) (D##_f0 = S##_f0, D##_f1 = S##_f1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define _FP_FRAC_SET_2(X,I) __FP_FRAC_SET_2(X, I)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define _FP_FRAC_HIGH_2(X) (X##_f1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define _FP_FRAC_LOW_2(X) (X##_f0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define _FP_FRAC_WORD_2(X,w) (X##_f##w)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define _FP_FRAC_SLL_2(X, N) ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) (void) (((N) < _FP_W_TYPE_SIZE) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ? ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (__builtin_constant_p(N) && (N) == 1) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) X##_f1 = X##_f1 + X##_f1 + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) (((_FP_WS_TYPE) (X##_f0)) < 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) X##_f0 += X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) } else { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) X##_f1 = X##_f1 << (N) | X##_f0 >> \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) (_FP_W_TYPE_SIZE - (N)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) X##_f0 <<= (N); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) : ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) X##_f1 = X##_f0 << ((N) - _FP_W_TYPE_SIZE); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) X##_f0 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) })))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define _FP_FRAC_SRL_2(X, N) ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) (void) (((N) < _FP_W_TYPE_SIZE) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) ? ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) X##_f0 = X##_f0 >> (N) | X##_f1 << (_FP_W_TYPE_SIZE - (N)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) X##_f1 >>= (N); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) : ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) X##_f0 = X##_f1 >> ((N) - _FP_W_TYPE_SIZE); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) X##_f1 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) })))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* Right shift with sticky-lsb. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define _FP_FRAC_SRS_2(X, N, sz) ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) (void) (((N) < _FP_W_TYPE_SIZE) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ? ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) | (__builtin_constant_p(N) && (N) == 1 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ? X##_f0 & 1 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) X##_f1 >>= (N); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) : ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) X##_f0 = (X##_f1 >> ((N) - _FP_W_TYPE_SIZE) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) | ((((N) == _FP_W_TYPE_SIZE \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ? 0 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) | X##_f0) != 0)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) X##_f1 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) })))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define _FP_FRAC_ADDI_2(X,I) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) __FP_FRAC_ADDI_2(X##_f1, X##_f0, I)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define _FP_FRAC_ADD_2(R,X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) __FP_FRAC_ADD_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) #define _FP_FRAC_SUB_2(R,X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) __FP_FRAC_SUB_2(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) #define _FP_FRAC_DEC_2(X,Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) __FP_FRAC_DEC_2(X##_f1, X##_f0, Y##_f1, Y##_f0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define _FP_FRAC_CLZ_2(R,X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) if (X##_f1) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) __FP_CLZ(R,X##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) __FP_CLZ(R,X##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) R += _FP_W_TYPE_SIZE; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* Predicates */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE)X##_f1 < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define _FP_FRAC_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) & _FP_OVERFLOW_##fs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define _FP_FRAC_CLEAR_OVERP_2(fs,X) (_FP_FRAC_HIGH_##fs(X) &= ~_FP_OVERFLOW_##fs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define _FP_FRAC_EQ_2(X, Y) (X##_f1 == Y##_f1 && X##_f0 == Y##_f0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define _FP_FRAC_GT_2(X, Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 > Y##_f0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define _FP_FRAC_GE_2(X, Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) (X##_f1 > Y##_f1 || (X##_f1 == Y##_f1 && X##_f0 >= Y##_f0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define _FP_ZEROFRAC_2 0, 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define _FP_MINFRAC_2 0, 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define _FP_MAXFRAC_2 (~(_FP_WS_TYPE)0), (~(_FP_WS_TYPE)0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * Internals
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define __FP_FRAC_SET_2(X,I1,I0) (X##_f0 = I0, X##_f1 = I1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #define __FP_CLZ_2(R, xh, xl) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (xh) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) __FP_CLZ(R,xh); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) __FP_CLZ(R,xl); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) R += _FP_W_TYPE_SIZE; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) } while(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #ifndef __FP_FRAC_ADDI_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define __FP_FRAC_ADDI_2(xh, xl, i) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) (xh += ((xl += i) < i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #ifndef __FP_FRAC_ADD_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) (rh = xh + yh + ((rl = xl + yl) < xl))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) #ifndef __FP_FRAC_SUB_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) #define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) (rh = xh - yh - ((rl = xl - yl) > xl))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #ifndef __FP_FRAC_DEC_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define __FP_FRAC_DEC_2(xh, xl, yh, yl) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) UWtype _t = xl; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) xh -= yh + ((xl -= yl) > _t); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) #undef __FP_FRAC_ADDI_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) #define __FP_FRAC_ADDI_2(xh, xl, i) add_ssaaaa(xh, xl, xh, xl, 0, i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #undef __FP_FRAC_ADD_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) #define __FP_FRAC_ADD_2 add_ssaaaa
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #undef __FP_FRAC_SUB_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #define __FP_FRAC_SUB_2 sub_ddmmss
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) #undef __FP_FRAC_DEC_2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) #define __FP_FRAC_DEC_2(xh, xl, yh, yl) sub_ddmmss(xh, xl, xh, xl, yh, yl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * Unpack the raw bits of a native fp value. Do not classify or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * normalize the data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define _FP_UNPACK_RAW_2(fs, X, val) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) union _FP_UNION_##fs _flo; _flo.flt = (val); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) X##_f0 = _flo.bits.frac0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) X##_f1 = _flo.bits.frac1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) X##_e = _flo.bits.exp; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) X##_s = _flo.bits.sign; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) #define _FP_UNPACK_RAW_2_P(fs, X, val) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) union _FP_UNION_##fs *_flo = \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) (union _FP_UNION_##fs *)(val); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) X##_f0 = _flo->bits.frac0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) X##_f1 = _flo->bits.frac1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) X##_e = _flo->bits.exp; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) X##_s = _flo->bits.sign; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * Repack the raw bits of a native fp value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #define _FP_PACK_RAW_2(fs, val, X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) union _FP_UNION_##fs _flo; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) _flo.bits.frac0 = X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) _flo.bits.frac1 = X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) _flo.bits.exp = X##_e; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) _flo.bits.sign = X##_s; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) (val) = _flo.flt; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define _FP_PACK_RAW_2_P(fs, val, X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) union _FP_UNION_##fs *_flo = \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) (union _FP_UNION_##fs *)(val); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) _flo->bits.frac0 = X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) _flo->bits.frac1 = X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) _flo->bits.exp = X##_e; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) _flo->bits.sign = X##_s; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * Multiplication algorithms:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) /* Given a 1W * 1W => 2W primitive, do the extended multiplication. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define _FP_MUL_MEAT_2_wide(wfracbits, R, X, Y, doit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) doit(_FP_FRAC_WORD_4(_z,1), _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) doit(_b_f1, _b_f0, X##_f0, Y##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) doit(_c_f1, _c_f0, X##_f1, Y##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) doit(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), X##_f1, Y##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) _FP_FRAC_WORD_4(_z,1), 0, _b_f1, _b_f0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) _FP_FRAC_WORD_4(_z,1)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) _FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) _FP_FRAC_WORD_4(_z,1)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* Normalize since we know where the msb of the multiplicands \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) were (bit B), we know that the msb of the of the product is \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) at either 2B or 2B-1. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) R##_f0 = _FP_FRAC_WORD_4(_z,0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) R##_f1 = _FP_FRAC_WORD_4(_z,1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) /* Given a 1W * 1W => 2W primitive, do the extended multiplication.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) Do only 3 multiplications instead of four. This one is for machines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) where multiplication is much more expensive than subtraction. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) #define _FP_MUL_MEAT_2_wide_3mul(wfracbits, R, X, Y, doit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) _FP_FRAC_DECL_4(_z); _FP_FRAC_DECL_2(_b); _FP_FRAC_DECL_2(_c); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) _FP_W_TYPE _d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) int _c1, _c2; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) _b_f0 = X##_f0 + X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) _c1 = _b_f0 < X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) _b_f1 = Y##_f0 + Y##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) _c2 = _b_f1 < Y##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) doit(_d, _FP_FRAC_WORD_4(_z,0), X##_f0, Y##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) doit(_FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1), _b_f0, _b_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) doit(_c_f1, _c_f0, X##_f1, Y##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) _b_f0 &= -_c2; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) _b_f1 &= -_c1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) __FP_FRAC_ADD_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) _FP_FRAC_WORD_4(_z,1), (_c1 & _c2), 0, _d, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 0, _FP_FRAC_WORD_4(_z,2), _FP_FRAC_WORD_4(_z,1)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) _b_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) __FP_FRAC_ADDI_2(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) _b_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) _FP_FRAC_WORD_4(_z,1), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 0, _d, _FP_FRAC_WORD_4(_z,0)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) __FP_FRAC_DEC_3(_FP_FRAC_WORD_4(_z,3),_FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) _FP_FRAC_WORD_4(_z,1), 0, _c_f1, _c_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) __FP_FRAC_ADD_2(_FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) _c_f1, _c_f0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) _FP_FRAC_WORD_4(_z,3), _FP_FRAC_WORD_4(_z,2)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /* Normalize since we know where the msb of the multiplicands \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) were (bit B), we know that the msb of the of the product is \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) at either 2B or 2B-1. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) R##_f0 = _FP_FRAC_WORD_4(_z,0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) R##_f1 = _FP_FRAC_WORD_4(_z,1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) #define _FP_MUL_MEAT_2_gmp(wfracbits, R, X, Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) _FP_FRAC_DECL_4(_z); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) _FP_W_TYPE _x[2], _y[2]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) _x[0] = X##_f0; _x[1] = X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) _y[0] = Y##_f0; _y[1] = Y##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) mpn_mul_n(_z_f, _x, _y, 2); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) /* Normalize since we know where the msb of the multiplicands \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) were (bit B), we know that the msb of the of the product is \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) at either 2B or 2B-1. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) _FP_FRAC_SRS_4(_z, wfracbits-1, 2*wfracbits); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) R##_f0 = _z_f[0]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) R##_f1 = _z_f[1]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /* Do at most 120x120=240 bits multiplication using double floating
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) point multiplication. This is useful if floating point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) multiplication has much bigger throughput than integer multiply.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) It is supposed to work for _FP_W_TYPE_SIZE 64 and wfracbits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) between 106 and 120 only.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) Caller guarantees that X and Y has (1LLL << (wfracbits - 1)) set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) SETFETZ is a macro which will disable all FPU exceptions and set rounding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) towards zero, RESETFE should optionally reset it back. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) #define _FP_MUL_MEAT_2_120_240_double(wfracbits, R, X, Y, setfetz, resetfe) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) static const double _const[] = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /* 2^-24 */ 5.9604644775390625e-08, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* 2^-48 */ 3.5527136788005009e-15, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) /* 2^-72 */ 2.1175823681357508e-22, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) /* 2^-96 */ 1.2621774483536189e-29, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* 2^28 */ 2.68435456e+08, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) /* 2^4 */ 1.600000e+01, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) /* 2^-20 */ 9.5367431640625e-07, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) /* 2^-44 */ 5.6843418860808015e-14, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) /* 2^-68 */ 3.3881317890172014e-21, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) /* 2^-92 */ 2.0194839173657902e-28, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* 2^-116 */ 1.2037062152420224e-35}; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) double _a240, _b240, _c240, _d240, _e240, _f240, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) _g240, _h240, _i240, _j240, _k240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) union { double d; UDItype i; } _l240, _m240, _n240, _o240, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) _p240, _q240, _r240, _s240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) UDItype _t240, _u240, _v240, _w240, _x240, _y240 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (wfracbits < 106 || wfracbits > 120) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) abort(); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) setfetz; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) _e240 = (double)(long)(X##_f0 & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) _j240 = (double)(long)(Y##_f0 & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) _d240 = (double)(long)((X##_f0 >> 24) & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) _i240 = (double)(long)((Y##_f0 >> 24) & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) _c240 = (double)(long)(((X##_f1 << 16) & 0xffffff) | (X##_f0 >> 48)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) _h240 = (double)(long)(((Y##_f1 << 16) & 0xffffff) | (Y##_f0 >> 48)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) _b240 = (double)(long)((X##_f1 >> 8) & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) _g240 = (double)(long)((Y##_f1 >> 8) & 0xffffff); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) _a240 = (double)(long)(X##_f1 >> 32); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) _f240 = (double)(long)(Y##_f1 >> 32); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) _e240 *= _const[3]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) _j240 *= _const[3]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) _d240 *= _const[2]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) _i240 *= _const[2]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) _c240 *= _const[1]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) _h240 *= _const[1]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) _b240 *= _const[0]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) _g240 *= _const[0]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) _s240.d = _e240*_j240;\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) _r240.d = _d240*_j240 + _e240*_i240;\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) _q240.d = _c240*_j240 + _d240*_i240 + _e240*_h240;\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) _p240.d = _b240*_j240 + _c240*_i240 + _d240*_h240 + _e240*_g240;\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) _o240.d = _a240*_j240 + _b240*_i240 + _c240*_h240 + _d240*_g240 + _e240*_f240;\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) _n240.d = _a240*_i240 + _b240*_h240 + _c240*_g240 + _d240*_f240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) _m240.d = _a240*_h240 + _b240*_g240 + _c240*_f240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) _l240.d = _a240*_g240 + _b240*_f240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) _k240 = _a240*_f240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) _r240.d += _s240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) _q240.d += _r240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) _p240.d += _q240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) _o240.d += _p240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) _n240.d += _o240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) _m240.d += _n240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) _l240.d += _m240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) _k240 += _l240.d; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) _s240.d -= ((_const[10]+_s240.d)-_const[10]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) _r240.d -= ((_const[9]+_r240.d)-_const[9]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) _q240.d -= ((_const[8]+_q240.d)-_const[8]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) _p240.d -= ((_const[7]+_p240.d)-_const[7]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) _o240.d += _const[7]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) _n240.d += _const[6]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) _m240.d += _const[5]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) _l240.d += _const[4]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) if (_s240.d != 0.0) _y240 = 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (_r240.d != 0.0) _y240 = 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (_q240.d != 0.0) _y240 = 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (_p240.d != 0.0) _y240 = 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) _t240 = (DItype)_k240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) _u240 = _l240.i; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) _v240 = _m240.i; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) _w240 = _n240.i; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) _x240 = _o240.i; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) R##_f1 = (_t240 << (128 - (wfracbits - 1))) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) | ((_u240 & 0xffffff) >> ((wfracbits - 1) - 104)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) R##_f0 = ((_u240 & 0xffffff) << (168 - (wfracbits - 1))) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) | ((_v240 & 0xffffff) << (144 - (wfracbits - 1))) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) | ((_w240 & 0xffffff) << (120 - (wfracbits - 1))) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) | ((_x240 & 0xffffff) >> ((wfracbits - 1) - 96)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) | _y240; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) resetfe; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * Division algorithms:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) #define _FP_DIV_MEAT_2_udiv(fs, R, X, Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) _FP_W_TYPE _n_f2, _n_f1, _n_f0, _r_f1, _r_f0, _m_f1, _m_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (_FP_FRAC_GT_2(X, Y)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) _n_f2 = X##_f1 >> 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) _n_f1 = X##_f1 << (_FP_W_TYPE_SIZE - 1) | X##_f0 >> 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) _n_f0 = X##_f0 << (_FP_W_TYPE_SIZE - 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) R##_e--; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) _n_f2 = X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) _n_f1 = X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) _n_f0 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) /* Normalize, i.e. make the most significant bit of the \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) denominator set. */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) _FP_FRAC_SLL_2(Y, _FP_WFRACXBITS_##fs); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) udiv_qrnnd(R##_f1, _r_f1, _n_f2, _n_f1, Y##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) umul_ppmm(_m_f1, _m_f0, R##_f1, Y##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) _r_f0 = _n_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) if (_FP_FRAC_GT_2(_m, _r)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) R##_f1--; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) _FP_FRAC_ADD_2(_r, Y, _r); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) R##_f1--; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) _FP_FRAC_ADD_2(_r, Y, _r); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) _FP_FRAC_DEC_2(_r, _m); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) if (_r_f1 == Y##_f1) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) /* This is a special case, not an optimization \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) (_r/Y##_f1 would not fit into UWtype). \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) As _r is guaranteed to be < Y, R##_f0 can be either \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) (UWtype)-1 or (UWtype)-2. But as we know what kind \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) of bits it is (sticky, guard, round), we don't care. \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) We also don't care what the reminder is, because the \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) guard bit will be set anyway. -jj */ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) R##_f0 = -1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) udiv_qrnnd(R##_f0, _r_f1, _r_f1, _r_f0, Y##_f1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) umul_ppmm(_m_f1, _m_f0, R##_f0, Y##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) _r_f0 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) if (_FP_FRAC_GT_2(_m, _r)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) R##_f0--; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) _FP_FRAC_ADD_2(_r, Y, _r); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) if (_FP_FRAC_GE_2(_r, Y) && _FP_FRAC_GT_2(_m, _r)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) R##_f0--; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) _FP_FRAC_ADD_2(_r, Y, _r); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) if (!_FP_FRAC_EQ_2(_r, _m)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) R##_f0 |= _FP_WORK_STICKY; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) #define _FP_DIV_MEAT_2_gmp(fs, R, X, Y) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) _FP_W_TYPE _x[4], _y[2], _z[4]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) _y[0] = Y##_f0; _y[1] = Y##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) _x[0] = _x[3] = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (_FP_FRAC_GT_2(X, Y)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) R##_e++; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) X##_f1 >> (_FP_W_TYPE_SIZE - \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE))); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) _x[2] = X##_f1 << (_FP_WFRACBITS_##fs-1 - _FP_W_TYPE_SIZE); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) _x[1] = (X##_f0 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) X##_f1 >> (_FP_W_TYPE_SIZE - \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE))); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) _x[2] = X##_f1 << (_FP_WFRACBITS_##fs - _FP_W_TYPE_SIZE); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) (void) mpn_divrem (_z, 0, _x, 4, _y, 2); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) R##_f1 = _z[1]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) R##_f0 = _z[0] | ((_x[0] | _x[1]) != 0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) * Square root algorithms:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) * We have just one right now, maybe Newton approximation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * should be added for those machines where division is fast.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) #define _FP_SQRT_MEAT_2(R, S, T, X, q) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) while (q) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) T##_f1 = S##_f1 + q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (T##_f1 <= X##_f1) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) S##_f1 = T##_f1 + q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) X##_f1 -= T##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) R##_f1 += q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) _FP_FRAC_SLL_2(X, 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) q >>= 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) q = (_FP_W_TYPE)1 << (_FP_W_TYPE_SIZE - 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) while (q != _FP_WORK_ROUND) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) T##_f0 = S##_f0 + q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) T##_f1 = S##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) if (T##_f1 < X##_f1 || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) (T##_f1 == X##_f1 && T##_f0 <= X##_f0)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) S##_f0 = T##_f0 + q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) S##_f1 += (T##_f0 > S##_f0); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) _FP_FRAC_DEC_2(X, T); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) R##_f0 += q; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) _FP_FRAC_SLL_2(X, 1); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) q >>= 1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) if (X##_f0 | X##_f1) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (S##_f1 < X##_f1 || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) (S##_f1 == X##_f1 && S##_f0 < X##_f0)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) R##_f0 |= _FP_WORK_ROUND; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) R##_f0 |= _FP_WORK_STICKY; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) * Assembly/disassembly for converting to/from integral types.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) * No shifting or overflow handled here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) #define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) (void) (((rsize) <= _FP_W_TYPE_SIZE) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) ? ({ (r) = X##_f0; }) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) : ({ \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) (r) = X##_f1; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) (r) <<= _FP_W_TYPE_SIZE; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) (r) += X##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) }))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) #define _FP_FRAC_DISASSEMBLE_2(X, r, rsize) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) X##_f0 = r; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) X##_f1 = (rsize <= _FP_W_TYPE_SIZE ? 0 : r >> _FP_W_TYPE_SIZE); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) * Convert FP values between word sizes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) #define _FP_FRAC_CONV_1_2(dfs, sfs, D, S) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) if (S##_c != FP_CLS_NAN) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) _FP_FRAC_SRS_2(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) _FP_WFRACBITS_##sfs); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) else \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) _FP_FRAC_SRL_2(S, (_FP_WFRACBITS_##sfs - _FP_WFRACBITS_##dfs)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) D##_f = S##_f0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) #define _FP_FRAC_CONV_2_1(dfs, sfs, D, S) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) D##_f0 = S##_f; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) D##_f1 = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) _FP_FRAC_SLL_2(D, (_FP_WFRACBITS_##dfs - _FP_WFRACBITS_##sfs)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags