196 lines
3.9 KiB
NASM
196 lines
3.9 KiB
NASM
|
dnl Intel Pentium mpn_add_n/mpn_sub_n -- mpn addition and subtraction.
|
||
|
|
|
||
|
|
dnl Copyright 1992, 1994, 1995, 1996, 1999, 2000, 2002 Free Software
|
||
|
|
dnl Foundation, Inc.
|
||
|
|
dnl
|
||
|
|
dnl This file is part of the GNU MP Library.
|
||
|
|
dnl
|
||
|
|
dnl The GNU MP Library is free software; you can redistribute it and/or
|
||
|
|
dnl modify it under the terms of the GNU Lesser General Public License as
|
||
|
|
dnl published by the Free Software Foundation; either version 2.1 of the
|
||
|
|
dnl License, or (at your option) any later version.
|
||
|
|
dnl
|
||
|
|
dnl The GNU MP Library is distributed in the hope that it will be useful,
|
||
|
|
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
dnl Lesser General Public License for more details.
|
||
|
|
dnl
|
||
|
|
dnl You should have received a copy of the GNU Lesser General Public
|
||
|
|
dnl License along with the GNU MP Library; see the file COPYING.LIB. If
|
||
|
|
dnl not, write to the Free Software Foundation, Inc., 51 Franklin Street,
|
||
|
|
dnl Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
|
||
|
|
include(`../config.m4')
|
||
|
|
|
||
|
|
|
||
|
|
C P5: 2.375 cycles/limb
|
||
|
|
|
||
|
|
|
||
|
|
ifdef(`OPERATION_add_n',`
|
||
|
|
define(M4_inst, adcl)
|
||
|
|
define(M4_function_n, mpn_add_n)
|
||
|
|
define(M4_function_nc, mpn_add_nc)
|
||
|
|
|
||
|
|
',`ifdef(`OPERATION_sub_n',`
|
||
|
|
define(M4_inst, sbbl)
|
||
|
|
define(M4_function_n, mpn_sub_n)
|
||
|
|
define(M4_function_nc, mpn_sub_nc)
|
||
|
|
|
||
|
|
',`m4_error(`Need OPERATION_add_n or OPERATION_sub_n
|
||
|
|
')')')
|
||
|
|
|
||
|
|
MULFUNC_PROLOGUE(mpn_add_n mpn_add_nc mpn_sub_n mpn_sub_nc)
|
||
|
|
|
||
|
|
|
||
|
|
C mp_limb_t M4_function_n (mp_ptr dst, mp_srcptr src1, mp_srcptr src2,
|
||
|
|
C mp_size_t size);
|
||
|
|
C mp_limb_t M4_function_nc (mp_ptr dst, mp_srcptr src1, mp_srcptr src2,
|
||
|
|
C mp_size_t size, mp_limb_t carry);
|
||
|
|
|
||
|
|
defframe(PARAM_CARRY,20)
|
||
|
|
defframe(PARAM_SIZE, 16)
|
||
|
|
defframe(PARAM_SRC2, 12)
|
||
|
|
defframe(PARAM_SRC1, 8)
|
||
|
|
defframe(PARAM_DST, 4)
|
||
|
|
|
||
|
|
TEXT
|
||
|
|
ALIGN(8)
|
||
|
|
PROLOGUE(M4_function_nc)
|
||
|
|
|
||
|
|
pushl %edi
|
||
|
|
pushl %esi
|
||
|
|
pushl %ebx
|
||
|
|
pushl %ebp
|
||
|
|
deflit(`FRAME',16)
|
||
|
|
|
||
|
|
movl PARAM_DST,%edi
|
||
|
|
movl PARAM_SRC1,%esi
|
||
|
|
movl PARAM_SRC2,%ebp
|
||
|
|
movl PARAM_SIZE,%ecx
|
||
|
|
|
||
|
|
movl (%ebp),%ebx
|
||
|
|
|
||
|
|
decl %ecx
|
||
|
|
movl %ecx,%edx
|
||
|
|
shrl $3,%ecx
|
||
|
|
andl $7,%edx
|
||
|
|
testl %ecx,%ecx C zero carry flag
|
||
|
|
jz L(endgo)
|
||
|
|
|
||
|
|
pushl %edx
|
||
|
|
FRAME_pushl()
|
||
|
|
movl PARAM_CARRY,%eax
|
||
|
|
shrl $1,%eax C shift bit 0 into carry
|
||
|
|
jmp L(oop)
|
||
|
|
|
||
|
|
L(endgo):
|
||
|
|
deflit(`FRAME',16)
|
||
|
|
movl PARAM_CARRY,%eax
|
||
|
|
shrl $1,%eax C shift bit 0 into carry
|
||
|
|
jmp L(end)
|
||
|
|
|
||
|
|
EPILOGUE()
|
||
|
|
|
||
|
|
|
||
|
|
ALIGN(8)
|
||
|
|
PROLOGUE(M4_function_n)
|
||
|
|
|
||
|
|
pushl %edi
|
||
|
|
pushl %esi
|
||
|
|
pushl %ebx
|
||
|
|
pushl %ebp
|
||
|
|
deflit(`FRAME',16)
|
||
|
|
|
||
|
|
movl PARAM_DST,%edi
|
||
|
|
movl PARAM_SRC1,%esi
|
||
|
|
movl PARAM_SRC2,%ebp
|
||
|
|
movl PARAM_SIZE,%ecx
|
||
|
|
|
||
|
|
movl (%ebp),%ebx
|
||
|
|
|
||
|
|
decl %ecx
|
||
|
|
movl %ecx,%edx
|
||
|
|
shrl $3,%ecx
|
||
|
|
andl $7,%edx
|
||
|
|
testl %ecx,%ecx C zero carry flag
|
||
|
|
jz L(end)
|
||
|
|
pushl %edx
|
||
|
|
FRAME_pushl()
|
||
|
|
|
||
|
|
ALIGN(8)
|
||
|
|
L(oop): movl 28(%edi),%eax C fetch destination cache line
|
||
|
|
leal 32(%edi),%edi
|
||
|
|
|
||
|
|
L(1): movl (%esi),%eax
|
||
|
|
movl 4(%esi),%edx
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl 4(%ebp),%ebx
|
||
|
|
M4_inst %ebx,%edx
|
||
|
|
movl 8(%ebp),%ebx
|
||
|
|
movl %eax,-32(%edi)
|
||
|
|
movl %edx,-28(%edi)
|
||
|
|
|
||
|
|
L(2): movl 8(%esi),%eax
|
||
|
|
movl 12(%esi),%edx
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl 12(%ebp),%ebx
|
||
|
|
M4_inst %ebx,%edx
|
||
|
|
movl 16(%ebp),%ebx
|
||
|
|
movl %eax,-24(%edi)
|
||
|
|
movl %edx,-20(%edi)
|
||
|
|
|
||
|
|
L(3): movl 16(%esi),%eax
|
||
|
|
movl 20(%esi),%edx
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl 20(%ebp),%ebx
|
||
|
|
M4_inst %ebx,%edx
|
||
|
|
movl 24(%ebp),%ebx
|
||
|
|
movl %eax,-16(%edi)
|
||
|
|
movl %edx,-12(%edi)
|
||
|
|
|
||
|
|
L(4): movl 24(%esi),%eax
|
||
|
|
movl 28(%esi),%edx
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl 28(%ebp),%ebx
|
||
|
|
M4_inst %ebx,%edx
|
||
|
|
movl 32(%ebp),%ebx
|
||
|
|
movl %eax,-8(%edi)
|
||
|
|
movl %edx,-4(%edi)
|
||
|
|
|
||
|
|
leal 32(%esi),%esi
|
||
|
|
leal 32(%ebp),%ebp
|
||
|
|
decl %ecx
|
||
|
|
jnz L(oop)
|
||
|
|
|
||
|
|
popl %edx
|
||
|
|
FRAME_popl()
|
||
|
|
L(end):
|
||
|
|
decl %edx C test %edx w/o clobbering carry
|
||
|
|
js L(end2)
|
||
|
|
incl %edx
|
||
|
|
L(oop2):
|
||
|
|
leal 4(%edi),%edi
|
||
|
|
movl (%esi),%eax
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl 4(%ebp),%ebx
|
||
|
|
movl %eax,-4(%edi)
|
||
|
|
leal 4(%esi),%esi
|
||
|
|
leal 4(%ebp),%ebp
|
||
|
|
decl %edx
|
||
|
|
jnz L(oop2)
|
||
|
|
L(end2):
|
||
|
|
movl (%esi),%eax
|
||
|
|
M4_inst %ebx,%eax
|
||
|
|
movl %eax,(%edi)
|
||
|
|
|
||
|
|
sbbl %eax,%eax
|
||
|
|
negl %eax
|
||
|
|
|
||
|
|
popl %ebp
|
||
|
|
popl %ebx
|
||
|
|
popl %esi
|
||
|
|
popl %edi
|
||
|
|
ret
|
||
|
|
|
||
|
|
EPILOGUE()
|