1 /* i80386 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
2 the result from a second limb vector.
3 Copyright (C) 1992, 1994, 1997 Free Software Foundation, Inc.
4 This file is part of the GNU MP Library.
6 The GNU MP Library is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Library General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or (at your
9 option) any later version.
11 The GNU MP Library is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
14 License for more details.
16 You should have received a copy of the GNU Library General Public License
17 along with the GNU MP Library; see the file COPYING.LIB. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 MA 02111-1307, USA. */
30 #include "asm-syntax.h"
39 GLOBL C_SYMBOL_NAME(__mpn_submul_1)
40 C_SYMBOL_NAME(__mpn_submul_1:)
47 INSN2(mov,l ,R(res_ptr),MEM_DISP(esp,20))
48 INSN2(mov,l ,R(s1_ptr),MEM_DISP(esp,24))
49 INSN2(mov,l ,R(size),MEM_DISP(esp,28))
50 INSN2(mov,l ,R(s2_limb),MEM_DISP(esp,32))
52 INSN2(lea,l ,R(res_ptr),MEM_INDEX(res_ptr,size,4))
53 INSN2(lea,l ,R(s1_ptr),MEM_INDEX(s1_ptr,size,4))
55 INSN2(xor,l ,R(ebx),R(ebx))
58 INSN2(mov,l ,R(eax),MEM_INDEX(s1_ptr,size,4))
59 INSN1(mul,l ,R(s2_limb))
60 INSN2(add,l ,R(eax),R(ebx))
61 INSN2(adc,l ,R(edx),$0)
62 INSN2(sub,l ,MEM_INDEX(res_ptr,size,4),R(eax))
63 INSN2(adc,l ,R(edx),$0)
64 INSN2(mov,l ,R(ebx),R(edx))
68 INSN2(mov,l ,R(eax),R(ebx))