From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpn/x86_64/atom/mul_2.asm | 190 ++++++++++++++++++++++++++++++++++++ 1 file changed, 190 insertions(+) create mode 100644 gmp-6.3.0/mpn/x86_64/atom/mul_2.asm (limited to 'gmp-6.3.0/mpn/x86_64/atom/mul_2.asm') diff --git a/gmp-6.3.0/mpn/x86_64/atom/mul_2.asm b/gmp-6.3.0/mpn/x86_64/atom/mul_2.asm new file mode 100644 index 0000000..4bc22cd --- /dev/null +++ b/gmp-6.3.0/mpn/x86_64/atom/mul_2.asm @@ -0,0 +1,190 @@ +dnl AMD64 mpn_mul_2 optimised for Intel Atom. + +dnl Copyright 2008, 2011-2013 Free Software 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/limb best +C AMD K8,K9 5.78 +C AMD K10 5.78 +C AMD bull 9.10 +C AMD pile 9.17 +C AMD steam +C AMD excavator +C AMD bobcat 11.3 +C AMD jaguar 10.9 +C Intel P4 24.6 +C Intel core2 8.06 +C Intel NHM 7.65 +C Intel SBR 6.28 +C Intel IBR 6.10 +C Intel HWL 6.09 +C Intel BWL 4.73 +C Intel SKL 4.77 +C Intel atom 35.3 +C Intel SLM 25.6 +C VIA nano + +C The loop of this code is the result of running a code generation and +C optimisation tool suite written by David Harvey and Torbjorn Granlund. + +define(`rp', `%rdi') C rcx +define(`up', `%rsi') C rdx +define(`n_param', `%rdx') C r8 +define(`vp', `%rcx') C r9 + +define(`v0', `%r8') +define(`v1', `%r9') +define(`w0', `%rbx') +define(`w1', `%rcx') +define(`w2', `%rbp') +define(`w3', `%r10') +define(`n', `%r11') + +ABI_SUPPORT(DOS64) +ABI_SUPPORT(STD64) + +ASM_START() + TEXT + ALIGN(16) +PROLOGUE(mpn_mul_2) + FUNC_ENTRY(4) + push %rbx + push %rbp + + mov (up), %rax + + mov (vp), v0 + mov 8(vp), v1 + + mov n_param, n + mul v0 + + test $1, R8(n) + jnz L(bx1) + +L(bx0): test $2, R8(n) + jnz L(b10) + +L(b00): mov %rax, w0 + mov (up), %rax + mov %rdx, w1 + xor R32(w2), R32(w2) + lea -8(rp), rp + jmp L(lo0) + +L(b10): mov %rax, w2 + mov (up), %rax + mov %rdx, w3 + xor R32(w0), R32(w0) + lea -16(up), up + lea -24(rp), rp + jmp L(lo2) + +L(bx1): test $2, R8(n) + jnz L(b11) + +L(b01): mov %rax, w3 + mov %rdx, w0 + mov (up), %rax + xor R32(w1), R32(w1) + lea 8(up), up + dec n + jmp L(lo1) + +L(b11): mov %rax, w1 + mov (up), %rax + mov %rdx, w2 + xor R32(w3), R32(w3) + lea -8(up), up + lea -16(rp), rp + jmp L(lo3) + + ALIGN(16) +L(top): +L(lo1): mul v1 + add %rax, w0 + mov (up), %rax + mov $0, R32(w2) + mov w3, (rp) + adc %rdx, w1 + mul v0 + add %rax, w0 + mov (up), %rax + adc %rdx, w1 + adc $0, R32(w2) +L(lo0): mul v1 + add %rax, w1 + mov 8(up), %rax + mov w0, 8(rp) + adc %rdx, w2 + mul v0 + add %rax, w1 + mov 8(up), %rax + adc %rdx, w2 + mov $0, R32(w3) + adc $0, R32(w3) +L(lo3): mul v1 + add %rax, w2 + mov 16(up), %rax + mov w1, 16(rp) + mov $0, R32(w0) + adc %rdx, w3 + mul v0 + add %rax, w2 + mov 16(up), %rax + adc %rdx, w3 +L(lo2): mov $0, R32(w1) + mov w2, 24(rp) + adc $0, R32(w0) + mul v1 + add %rax, w3 + mov 24(up), %rax + lea 32(up), up + adc %rdx, w0 + mul v0 + lea 32(rp), rp + add %rax, w3 + adc %rdx, w0 + mov -8(up), %rax + adc $0, R32(w1) + sub $4, n + ja L(top) + +L(end): mul v1 + mov w3, (rp) + add %rax, w0 + adc %rdx, w1 + mov w0, 8(rp) + mov w1, %rax + pop %rbp + pop %rbx + FUNC_EXIT() + ret +EPILOGUE() -- cgit v1.2.3