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()