/* i80386 __mpn_mul_1 -- Multiply a limb vector with a limb and store the result in a second limb vector. Copyright (C) 1992-2018 Free Software Foundation, Inc. This file is part of the GNU MP Library. The GNU MP Library 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. The GNU MP Library 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 the GNU MP Library; see the file COPYING.LIB. If not, see <http://www.gnu.org/licenses/>. */ #include <sysdep.h> #include "asm-syntax.h" #define PARMS 4+16 /* space for 4 saved regs */ #define RES PARMS #define S1 RES+4 #define SIZE S1+4 #define S2LIMB SIZE+4 #define res_ptr edi #define s1_ptr esi #define size ecx #define s2_limb ebx .text ENTRY (__mpn_mul_1) pushl %res_ptr cfi_adjust_cfa_offset (4) pushl %s1_ptr cfi_adjust_cfa_offset (4) pushl %ebp cfi_adjust_cfa_offset (4) pushl %s2_limb cfi_adjust_cfa_offset (4) movl RES(%esp), %res_ptr cfi_rel_offset (res_ptr, 12) movl S1(%esp), %s1_ptr cfi_rel_offset (s1_ptr, 8) movl SIZE(%esp), %size movl S2LIMB(%esp), %s2_limb cfi_rel_offset (s2_limb, 0) leal (%res_ptr,%size,4), %res_ptr leal (%s1_ptr,%size,4), %s1_ptr negl %size xorl %ebp, %ebp cfi_rel_offset (ebp, 4) ALIGN (3) L(oop): movl (%s1_ptr,%size,4), %eax mull %s2_limb addl %ebp, %eax movl %eax, (%res_ptr,%size,4) adcl $0, %edx movl %edx, %ebp incl %size jnz L(oop) movl %ebp, %eax popl %s2_limb cfi_adjust_cfa_offset (-4) cfi_restore (s2_limb) popl %ebp cfi_adjust_cfa_offset (-4) cfi_restore (ebp) popl %s1_ptr cfi_adjust_cfa_offset (-4) cfi_restore (s1_ptr) popl %res_ptr cfi_adjust_cfa_offset (-4) cfi_restore (res_ptr) ret #undef size END (__mpn_mul_1)