2008-06-25 03:33:36 -04:00
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/* PowerPC-32 gmp-mparam.h -- Compiler/machine parameter header file.
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Copyright 1991, 1993, 1994, 1999, 2000, 2001, 2002, 2003, 2004, 2006 Free
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Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#define BITS_PER_MP_LIMB 32
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#define BYTES_PER_MP_LIMB 4
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/* This file is supposed to be used for 604, 604e, 744x/745x/747x (G4+), i.e.,
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32-bit PowerPC processors with reasonably fast integer multiply insns. The
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values below are chosen to be best for the latter processors, since 604 is
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largely irrelevant today.
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In mpn/powerpc32/750/gmp-mparam.h there are values for 75x (G3) and for
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7400/7410 (G4), both which have much slower multiply instructions. */
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/* Generated by tuneup.c, 2006-03-18, gcc 3.4 */
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#define MUL_KARATSUBA_THRESHOLD 14
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#define MUL_TOOM3_THRESHOLD 73
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#define SQR_BASECASE_THRESHOLD 0 /* always */
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#define SQR_KARATSUBA_THRESHOLD 26
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#define SQR_TOOM3_THRESHOLD 81
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#define MULLOW_BASECASE_THRESHOLD 0 /* always */
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#define MULLOW_DC_THRESHOLD 52
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#define MULLOW_MUL_N_THRESHOLD 438
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#define DIV_SB_PREINV_THRESHOLD 0 /* always */
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#define DIV_DC_THRESHOLD 44
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#define POWM_THRESHOLD 89
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#define GCD_ACCEL_THRESHOLD 3
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#define GCDEXT_THRESHOLD 36
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#define JACOBI_BASE_METHOD 1
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#define DIVREM_1_NORM_THRESHOLD 0 /* always */
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#define DIVREM_1_UNNORM_THRESHOLD 0 /* always */
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#define MOD_1_NORM_THRESHOLD 0 /* always */
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#define MOD_1_UNNORM_THRESHOLD 0 /* always */
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#define USE_PREINV_DIVREM_1 1
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#define USE_PREINV_MOD_1 1
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#define DIVREM_2_THRESHOLD 0 /* always */
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#define DIVEXACT_1_THRESHOLD 0 /* always */
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#define MODEXACT_1_ODD_THRESHOLD 0 /* always (native) */
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#define GET_STR_DC_THRESHOLD 14
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#define GET_STR_PRECOMPUTE_THRESHOLD 25
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#define SET_STR_THRESHOLD 6418
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#define MUL_FFT_TABLE { 336, 800, 1408, 3584, 10240, 40960, 163840, 393216, 0 }
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#define MUL_FFT_MODF_THRESHOLD 352
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#define MUL_FFT_THRESHOLD 2304
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#define SQR_FFT_TABLE { 368, 864, 1664, 3584, 10240, 40960, 163840, 393216, 0 }
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#define SQR_FFT_MODF_THRESHOLD 384
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#define SQR_FFT_THRESHOLD 2816
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