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dnl Intel Atom mpn_and_n,...,mpn_xnor_n -- bitwise logical operations.
dnl Copyright 2011 Free Software Foundation, Inc.
dnl Contributed to the GNU project by Marco Bodrato.
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 modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C op nop opn
C P5
C P6 model 0-8,10-12
C P6 model 9 (Banias)
C P6 model 13 (Dothan)
C P4 model 0 (Willamette)
C P4 model 1 (?)
C P4 model 2 (Northwood)
C P4 model 3 (Prescott)
C P4 model 4 (Nocona)
C Intel Atom 3 3.5 3.5
C AMD K6
C AMD K7
C AMD K8
C AMD K10
define(M4_choose_op,
`ifdef(`OPERATION_$1',`
define(`M4_function', `mpn_$1')
define(`M4_want_pre', `$4')
define(`M4_inst', `$3')
define(`M4_want_post',`$2')
')')
define(M4pre, `ifelse(M4_want_pre, yes,`$1')')
define(M4post,`ifelse(M4_want_post,yes,`$1')')
M4_choose_op( and_n, , andl, )
M4_choose_op( andn_n, , andl, yes)
M4_choose_op( nand_n, yes, andl, )
M4_choose_op( ior_n, , orl, )
M4_choose_op( iorn_n, , orl, yes)
M4_choose_op( nior_n, yes, orl, )
M4_choose_op( xor_n, , xorl, )
M4_choose_op( xnor_n, yes, xorl, )
ifdef(`M4_function',,
`m4_error(`Unrecognised or undefined OPERATION symbol
')')
MULFUNC_PROLOGUE(mpn_and_n mpn_andn_n mpn_nand_n mpn_ior_n mpn_iorn_n mpn_nior_n mpn_xor_n mpn_xnor_n)
C void M4_function (mp_ptr dst, mp_srcptr src2, mp_srcptr src1, mp_size_t size);
C
defframe(PARAM_SIZE, 16)
defframe(PARAM_SRC1, 12)
defframe(PARAM_SRC2, 8)
defframe(PARAM_DST, 4)
dnl re-use parameter space
define(SAVE_RP,`PARAM_SIZE')
define(SAVE_VP,`PARAM_SRC1')
define(SAVE_UP,`PARAM_DST')
define(`rp', `%edi')
define(`up', `%esi')
define(`vp', `%ebx')
define(`cnt', `%eax')
define(`r1', `%ecx')
define(`r2', `%edx')
ASM_START()
TEXT
ALIGN(16)
deflit(`FRAME',0)
PROLOGUE(M4_function)
mov PARAM_SIZE, cnt C size
mov rp, SAVE_RP
mov PARAM_DST, rp
mov up, SAVE_UP
mov PARAM_SRC1, up
shr cnt C size >> 1
mov vp, SAVE_VP
mov PARAM_SRC2, vp
mov (up), r1
jz L(end) C size == 1
jnc L(even) C size % 2 == 0
ALIGN(16)
L(oop):
M4pre(` notl_or_xorl_GMP_NUMB_MASK(r1)')
M4_inst (vp), r1
lea 8(up), up
mov -4(up), r2
M4post(` notl_or_xorl_GMP_NUMB_MASK(r1)')
lea 8(vp), vp
mov r1, (rp)
L(entry):
M4pre(` notl_or_xorl_GMP_NUMB_MASK(r2)')
M4_inst -4(vp), r2
lea 8(rp), rp
M4post(` notl_or_xorl_GMP_NUMB_MASK(r2)')
dec cnt
mov (up), r1
mov r2, -4(rp)
jnz L(oop)
L(end):
M4pre(` notl_or_xorl_GMP_NUMB_MASK(r1)')
mov SAVE_UP, up
M4_inst (vp), r1
M4post(`notl_or_xorl_GMP_NUMB_MASK(r1)')
mov SAVE_VP, vp
mov r1, (rp)
mov SAVE_RP, rp
ret
L(even):
mov r1, r2
lea 4(up), up
lea 4(vp), vp
lea -4(rp), rp
jmp L(entry)
EPILOGUE()
ASM_END()
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