diff options
Diffstat (limited to 'gmp-6.3.0/mpn/x86/p6/gcd_11.asm')
| -rw-r--r-- | gmp-6.3.0/mpn/x86/p6/gcd_11.asm | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/x86/p6/gcd_11.asm b/gmp-6.3.0/mpn/x86/p6/gcd_11.asm new file mode 100644 index 0000000..80e055e --- /dev/null +++ b/gmp-6.3.0/mpn/x86/p6/gcd_11.asm @@ -0,0 +1,83 @@ +dnl x86 mpn_gcd_11 optimised for processors with fast BSF. + +dnl Based on the K7 gcd_1.asm, by Kevin Ryde. Rehacked by Torbjorn Granlund. + +dnl Copyright 2000-2002, 2005, 2009, 2011, 2012, 2015 Free Software +dnl Foundation, Inc. + +dnl This file is part of the GNU MP Library. +dnl +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +dnl The GNU MP Library is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + + +C cycles/bit (approx) +C AMD K7 7.80 +C AMD K8,K9 7.79 +C AMD K10 4.08 +C AMD bd1 ? +C AMD bobcat 7.82 +C Intel P4-2 14.9 +C Intel P4-3/4 14.0 +C Intel P6/13 5.09 +C Intel core2 4.22 +C Intel NHM 5.00 +C Intel SBR 5.00 +C Intel atom 17.1 +C VIA nano ? +C Numbers measured with: speed -CD -s16-32 -t16 mpn_gcd_1 + + +define(`u0', `%eax') +define(`v0', `%edx') + +ASM_START() + TEXT + ALIGN(16) +PROLOGUE(mpn_gcd_11) + push %edi + push %esi + + mov 12(%esp), %eax + mov 16(%esp), %edx + jmp L(odd) + + ALIGN(16) C K10 BD C2 NHM SBR +L(top): cmovc( %esi, %eax) C u = |v - u| 0,3 0,3 0,6 0,5 0,5 + cmovc( %edi, %edx) C v = min(u,v) 0,3 0,3 2,8 1,7 1,7 + shr %cl, %eax C 1,7 1,6 2,8 2,8 2,8 +L(odd): mov %edx, %esi C 1 1 4 3 3 + sub %eax, %esi C 2 2 5 4 4 + bsf %esi, %ecx C 3 3 6 5 5 + mov %eax, %edi C 2 2 3 3 4 + sub %edx, %eax C 2 2 4 3 4 + jnz L(top) C + +L(end): mov %edx, %eax + pop %esi + pop %edi + ret +EPILOGUE() |