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47 lines
1.4 KiB
ArmAsm
47 lines
1.4 KiB
ArmAsm
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/* AMD64 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract
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the result from a second limb vector.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include "sysdep.h"
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#include "asm-syntax.h"
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.text
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ENTRY (__mpn_submul_1)
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movq %rdx, %r11
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leaq (%rsi,%r11,8), %rsi
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leaq (%rdi,%r11,8), %rdi
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negq %r11
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xorl %r8d, %r8d
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.p2align 3
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L(loop):
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movq (%rsi,%r11,8), %rax
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movq (%rdi,%r11,8), %r10
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mulq %rcx
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subq %r8, %r10
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movl $0, %r8d
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adcl %r8d, %r8d
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subq %rax, %r10
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adcq %rdx, %r8
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movq %r10, (%rdi,%r11,8)
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incq %r11
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jne L(loop)
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movq %r8, %rax
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ret
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END (__mpn_submul_1)
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