2008-04-17 17:03:07 -04:00
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dnl x86 __gmpn_addmul_1 (for 386 and 486) -- Multiply a limb vector with a
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dnl limb and add the result to a second limb vector.
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dnl Copyright 1992, 1994, 1997, 1999, 2000, 2001, 2002, 2005 Free Software
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dnl Foundation, Inc.
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dnl
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dnl This file is part of the GNU MP Library.
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dnl
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dnl The GNU MP Library is free software; you can redistribute it and/or
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dnl modify it under the terms of the GNU Lesser General Public License as
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dnl published by the Free Software Foundation; either version 2.1 of the
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dnl License, or (at your option) any later version.
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dnl
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dnl The GNU MP Library is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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dnl Lesser General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with the GNU MP Library; see the file COPYING.LIB. If
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dnl not, write to the Free Software Foundation, Inc., 51 Franklin Street,
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dnl Fifth Floor, Boston, MA 02110-1301, USA.
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include(`../config.m4')
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C cycles/limb
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C P5: 14.75
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C P6 model 0-8,10-12) 7.5
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C P6 model 9 (Banias)
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C P6 model 13 (Dothan) 6.75
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C P4 model 0 (Willamette) 24.0
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C P4 model 1 (?) 24.0
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C P4 model 2 (Northwood) 24.0
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C P4 model 3 (Prescott)
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C P4 model 4 (Nocona)
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C K6: 12.5
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C K7: 5.25
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C K8:
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2013-08-01 13:07:47 -04:00
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define(`OPERATION_addmul_1',1)
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2008-04-17 17:03:07 -04:00
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ifdef(`OPERATION_addmul_1',`
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define(M4_inst, addl)
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define(M4_function_1, mpn_addmul_1)
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',`ifdef(`OPERATION_submul_1',`
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define(M4_inst, subl)
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define(M4_function_1, mpn_submul_1)
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',`m4_error(`Need OPERATION_addmul_1 or OPERATION_submul_1
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')')')
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C mp_limb_t M4_function_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,
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C mp_limb_t mult);
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define(PARAM_MULTIPLIER, `FRAME+16(%esp)')
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define(PARAM_SIZE, `FRAME+12(%esp)')
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define(PARAM_SRC, `FRAME+8(%esp)')
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define(PARAM_DST, `FRAME+4(%esp)')
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TEXT
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ALIGN(8)
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PROLOGUE(M4_function_1)
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deflit(`FRAME',0)
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pushl %edi
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pushl %esi
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pushl %ebx
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pushl %ebp
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deflit(`FRAME',16)
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movl PARAM_DST,%edi
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movl PARAM_SRC,%esi
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movl PARAM_SIZE,%ecx
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xorl %ebx,%ebx
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andl $3,%ecx
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jz L(end0)
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L(oop0):
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movl (%esi),%eax
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mull PARAM_MULTIPLIER
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leal 4(%esi),%esi
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addl %ebx,%eax
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movl $0,%ebx
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adcl %ebx,%edx
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M4_inst %eax,(%edi)
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adcl %edx,%ebx C propagate carry into cylimb
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leal 4(%edi),%edi
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decl %ecx
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jnz L(oop0)
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L(end0):
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movl PARAM_SIZE,%ecx
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shrl $2,%ecx
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jz L(end)
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ALIGN(8)
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L(oop): movl (%esi),%eax
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mull PARAM_MULTIPLIER
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addl %eax,%ebx
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movl $0,%ebp
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adcl %edx,%ebp
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movl 4(%esi),%eax
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mull PARAM_MULTIPLIER
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M4_inst %ebx,(%edi)
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adcl %eax,%ebp C new lo + cylimb
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movl $0,%ebx
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adcl %edx,%ebx
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movl 8(%esi),%eax
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mull PARAM_MULTIPLIER
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M4_inst %ebp,4(%edi)
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adcl %eax,%ebx C new lo + cylimb
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movl $0,%ebp
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adcl %edx,%ebp
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movl 12(%esi),%eax
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mull PARAM_MULTIPLIER
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M4_inst %ebx,8(%edi)
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adcl %eax,%ebp C new lo + cylimb
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movl $0,%ebx
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adcl %edx,%ebx
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M4_inst %ebp,12(%edi)
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adcl $0,%ebx C propagate carry into cylimb
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leal 16(%esi),%esi
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leal 16(%edi),%edi
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decl %ecx
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jnz L(oop)
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L(end): movl %ebx,%eax
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popl %ebp
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popl %ebx
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popl %esi
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popl %edi
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ret
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EPILOGUE()
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