| /* AMD64 addmul2 -- 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_addmul_2( mpi_ptr_t res_ptr, (sp + 4) |
| * mpi_ptr_t s1_ptr, (sp + 8) |
| * mpi_size_t s1_size, (sp + 12) |
| * mpi_limb_t s2_limb) (sp + 16) |
| */ |
| |
| /* i80386 addmul_1 -- Multiply a limb vector with a limb and add |
| * the result to a second limb vector. |
| * |
| * Copyright (C) 1992, 1994, 1998, |
| * 2001, 2002 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_addmul_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_addmul_1) |
| C_SYMBOL_NAME(_gcry_mpih_addmul_1:) |
| movq %rdx, %r11 |
| leaq (%rsi,%rdx,8), %rsi |
| leaq (%rdi,%rdx,8), %rdi |
| negq %r11 |
| xorl %r8d, %r8d |
| xorl %r10d, %r10d |
| |
| ALIGN(3) /* minimal alignment for claimed speed */ |
| .Loop: movq (%rsi,%r11,8), %rax |
| mulq %rcx |
| addq (%rdi,%r11,8), %rax |
| adcq %r10, %rdx |
| addq %r8, %rax |
| movq %r10, %r8 |
| movq %rax, (%rdi,%r11,8) |
| adcq %rdx, %r8 |
| incq %r11 |
| jne .Loop |
| |
| movq %r8, %rax |
| ret |
