From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S | 66 +++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S (limited to 'grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S') diff --git a/grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S b/grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S new file mode 100644 index 0000000..4d458a7 --- /dev/null +++ b/grub-core/lib/libgcrypt/mpi/amd64/mpih-mul3.S @@ -0,0 +1,66 @@ +/* AMD64 submul_1 -- Multiply a limb vector with a limb and add + * the result to a second limb vector. + * + * Copyright (C) 1992, 1994, 1998, + * 2001, 2002, 2006 Free Software Foundation, Inc. + * + * This file is part of Libgcrypt. + * + * Libgcrypt is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Libgcrypt is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * Note: This code is heavily based on the GNU MP Library. + * Actually it's the same code with only minor changes in the + * way the data is stored; this is to support the abstraction + * of an optional secure memory allocation which may be used + * to avoid revealing of sensitive data due to paging etc. + */ + + +#include "sysdep.h" +#include "asm-syntax.h" + + +/******************* + * mpi_limb_t + * _gcry_mpih_submul_1( mpi_ptr_t res_ptr, (rdi) + * mpi_ptr_t s1_ptr, (rsi) + * mpi_size_t s1_size, (rdx) + * mpi_limb_t s2_limb) (rcx) + */ + TEXT + GLOBL C_SYMBOL_NAME(_gcry_mpih_submul_1) +C_SYMBOL_NAME(_gcry_mpih_submul_1:) + + movq %rdx, %r11 + leaq (%rsi,%r11,8), %rsi + leaq (%rdi,%r11,8), %rdi + negq %r11 + xorl %r8d, %r8d + + ALIGN(3) /* minimal alignment for claimed speed */ +.Loop: movq (%rsi,%r11,8), %rax + movq (%rdi,%r11,8), %r10 + mulq %rcx + subq %r8, %r10 + movl $0, %r8d + adcl %r8d, %r8d + subq %rax, %r10 + adcq %rdx, %r8 + movq %r10, (%rdi,%r11,8) + incq %r11 + jne .Loop + + movq %r8, %rax + ret -- cgit v1.2.3