nb_kernel110nf_ia64_single.s

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/*
 * $Id: nb_kernel110nf_ia64_single.S,v 1.2 2005/01/25 12:11:51 lindahl Exp $
 *
 * Gromacs 4.0                         Copyright (c) 1991-2003
 * David van der Spoel, Erik Lindahl, University of Groningen.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * To help us fund GROMACS development, we humbly ask that you cite
 * the research papers on the package. Check out http://www.gromacs.org
 * 
 * And Hey:
 * Gnomes, ROck Monsters And Chili Sauce
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif


/*
 * The ia64-assembly Gromacs inner loops would not have been
 * possible without a lot of support and optimization suggestions 
 * from John Worley at Hewlett-Packard.
 */

/* Each thread locks a counter and grabs a couple of neighborlists.
 * Available sizes for this chunk: 1,2,4,8, or 16 
 */
#define THREAD_CHUNK_SIZE       8
#define JJNR_PREFETCH_DISTANCE  128

#define	zero	r0	/* permanent zero					*/
#define	gp		r1	/* global data pointer				*/

#define	at0		r2	/* temp, target of addi				*/
#define	at1		r3	/* temp, target of addi				*/

#define	S0		r4	/* callee saves register			*/
#define	S1		r5	/* callee saves register			*/
#define	S2		r6	/* callee saves register			*/
#define	S3		r7	/* callee saves register			*/

#define	v0		r8	/* 1st fixed point return value/ptr	*/
#define	v1		r9	/* 2nd fixed return value/ptr		*/
#define	v2		r10	/* 3rd fixed return value/ptr		*/
#define	v3		r11	/* 4th fixed return value/ptr		*/

#define	sp		r12	/* memory stack pointer				*/
#define	tp		r13	/* thread pointer					*/

#define	t0		r14	/* caller saves register			*/
#define	t1		r15	/* caller saves register			*/
#define	t2		r16	/* caller saves register			*/
#define	t3		r17	/* caller saves register			*/
#define	t4		r18	/* caller saves register			*/
#define	t5		r19	/* caller saves register			*/

#define	t6		r20	/* caller saves register			*/
#define	t7		r21	/* caller saves register			*/
#define	t8		r22	/* caller saves register			*/
#define	t9		r23	/* caller saves register			*/
#define	t10		r24	/* caller saves register			*/
#define	t11		r25	/* caller saves register			*/
#define	t12		r26	/* caller saves register			*/
#define	t13		r27	/* caller saves register			*/
#define	t14		r28	/* caller saves register			*/
#define	t15		r29	/* caller saves register			*/
#define	t16		r30	/* caller saves register			*/
#define	t17		r31	/* caller saves register			*/


//	ia64 Floating-point register definitions
#define	fZero	f0	/* permanent floating point 0.0		*/
#define	fOne	f1	/* permanent floating point 1.0		*/

#define	fs0		f2	/* callee saves register			*/
#define	fs1		f3	/* callee saves register			*/
#define	fs2		f4	/* callee saves register			*/
#define	fs3		f5	/* callee saves register			*/
	
#define	ft0		f6	/* caller saves register			*/
#define	ft1		f7	/* caller saves register			*/

#define	fa0		f8	/* argument register 0				*/
#define	fa1		f9	/* argument register 1				*/
#define	fa2		f10	/* argument register 2				*/
#define	fa3		f11	/* argument register 3				*/
#define	fa4		f12	/* argument register 4				*/
#define	fa5		f13	/* argument register 5				*/
#define	fa6		f14	/* argument register 6				*/
#define	fa7		f15	/* argument register 7				*/

#define	fv0		f8	/* return value register 0			*/
#define	fv1		f9	/* return value register 1			*/
#define	fv2		f10	/* return value register 2			*/
#define	fv3		f11	/* return value register 3			*/
#define	fv4		f12	/* return value register 4			*/
#define	fv5		f13	/* return value register 5			*/
#define	fv6		f14	/* return value register 6			*/
#define	fv7		f15	/* return value register 7			*/

#define	fs4		f16	/* callee saves register			*/
#define	fs5		f17	/* callee saves register			*/
#define	fs6		f18	/* callee saves register			*/
#define	fs7		f19	/* callee saves register			*/
#define	fs8		f20	/* callee saves register			*/
#define	fs9		f21	/* callee saves register			*/
#define	fs10	f22	/* callee saves register			*/
#define	fs11	f23	/* callee saves register			*/

#define	fs12	f24	/* callee saves register			*/
#define	fs13	f25	/* callee saves register			*/
#define	fs14	f26	/* callee saves register			*/
#define	fs15	f27	/* callee saves register			*/
#define	fs16	f28	/* callee saves register			*/
#define	fs17	f29	/* callee saves register			*/
#define	fs18	f30	/* callee saves register			*/
#define	fs19	f31	/* callee saves register			*/

// ia64 predicate register definitions
#define	pone	p0	/* permanent one predicate			*/
#define	pTrue	p0	/* permanent one predicate			*/

#define	ps0		p1	/* callee saves predicate			*/
#define	ps1		p2	/* callee saves predicate			*/
#define	ps2		p3	/* callee saves predicate			*/
#define	ps3		p4	/* callee saves predicate			*/
#define	ps4		p5	/* callee saves predicate			*/

#define	pt0		p6	/* caller saves predicate			*/
#define	pt1		p7	/* caller saves predicate			*/
#define	pt2		p8	/* caller saves predicate			*/
#define	pt3		p9	/* caller saves predicate			*/
#define	pt4		p10	/* caller saves predicate			*/
#define	pt5		p11	/* caller saves predicate			*/
#define	pt6		p12	/* caller saves predicate			*/
#define	pt7		p13	/* caller saves predicate			*/
#define	pt8		p14	/* caller saves predicate			*/
#define	pt9		p15	/* caller saves predicate			*/

// ia64 branch register definitions
#define	rb		b0	/* return link						*/

#define	bs0		b1	/* callee saves branch register		*/
#define	bs1		b2	/* callee saves branch register		*/
#define	bs2		b3	/* callee saves branch register		*/
#define	bs3		b4	/* callee saves branch register		*/
#define	bs4		b5	/* callee saves branch register		*/
	
#define	bt0		b6	/* caller saves branch register		*/
#define	bt1		b7	/* caller saves branch register		*/
	
		
.text

#define	CHARGE		t10
#define	FACTION		t9
#define	FActII		loc8
#define	FActIX		fs1
#define	FActIY		fs2
#define	FActIZ		fs3
#define	FIX			fs8
#define	FIY			fs9
#define	FIZ			fs10
#define	FSHIFT		t6
#define	FShiftIS	loc9
#define	FShiftX		fs5
#define	FShiftY		fs6
#define	FShiftZ		fs7
#define	Facel		fa3
#define	ICharge		fa7
#define	InnerCnt	t17
#define	II			t13
#define	II3			in7
#define	IQ			fa7
#define	IS			t12
#define	IS3			in6
#define	IX			fa4
#define	IY			fa5
#define	IZ			fa6
#define	In_FSHIFT	in6
#define	In_GID		in7
#define	In_IINR		in1
#define	In_JINDEX	in2
#define	In_JJNR		in3
#define	In_NRI		in0
#define	In_SHIFT	in4
#define	In_SHIFTVEC	in5
#define NRI			loc12
#define IINR		loc13
#define JINDEX		loc14
#define JJNR		loc15
#define SHIFT		loc16
#define GID			loc17
#define COUNT		loc18
#define	JX			DX[0]
#define	JY			DY[0]
#define	JZ			DZ[0]
#define	LCSave		at0
#define	NJ0			t14
#define	NJ1			t15
#define	POSITION	t8
#define	PRSave		at1
#define	PosX		f88
#define	PosY		f89
#define	PosZ		f90
#define	QCharge		Charge[0]
#define	QQ			Charge[3]
#define	SHIFTVEC	t5
#define	VC			t11
#define	VCPtr		ggid
#define	VCTotal		fs0
#define VNBTotal    fs4
#define	VCoul		Charge[3]
#define	VCoul2		Charge[4]
#define Vvdw6		C6[2]
#define Vvdw12		C12[2]
#define RInv12      RInv6[1]
#define	argPtr		loc23
#define	chargePtr	v2
#define	Tmp1		t0
#define	Tmp2		t17
#define	Tmp3		loc11
#define	Tmp4		t2
#define	fHALF		ft0
#define	f3_8		ft1
#define f5_16		fa0
#define fSIX        fa1
#define fTWELVE     fa2
#define	fillP0		v0
#define	fillP1		v1
#define NN0			t0
#define NN1			loc11
#define	ggid		loc10
#define	gidPtr		t7
#define	iinrPtr		t1
#define	jindexPtr	t2
#define	jjnrPtr		t3
#define	jnr			t16
#define	jnr3		v0
#define	nriCount	t0
#define	pCont		pt0
#define	pDone		pt1
#define	pJJNR		pt2
#define	pMore		pt3
#define	pLast		pt4
#define	posPtr		v3
#define	shX			fa4
#define	shY			fa5
#define	shZ			fa6
#define	shiftPtr	t4
#define	shiftVPtr	v1
#define	spillPtr	v0
#define	spillPtr2   t0
#define	xPFS		at0
#define TYPE        loc19
#define NTYPE       loc20
#define typePtr     loc21
#define NBFP		loc22
#define NTI     	loc24
#define VNBPtr      loc25
#define Nouter      loc26
#define Ninner      loc27
#define OuterIter   loc28
#define InnerIter   loc29
#define VNB         loc30
#define pFacel      loc31
	
#define	_NINPUTS	8
#define	_NLOCALS	32
#define	_NOUTPUT	0
#define	_NROTATE	16

#define	EXP(n)					(0xffff + (n))

#define	POS_STK_OFFSET			0x10
#define	FACTION_STK_OFFSET		0x18
#define	CHARGE_STK_OFFSET		0x20
#define	FACEL_STK_OFFSET		0x28
#define	KRF_STK_OFFSET			0x30
#define	CRF_STK_OFFSET			0x38
#define	VC_STK_OFFSET			0x40
#define	TYPE_STK_OFFSET			0x48
#define	NTYPE_STK_OFFSET		0x50
#define	NBFP_STK_OFFSET			0x58
#define	VNB_STK_OFFSET			0x60
#define	TABSCALE_STK_OFFSET		0x68
#define	VFTAB_STK_OFFSET		0x70
#define	INVSQRTA_STK_OFFSET		0x78
#define	DVDA_STK_OFFSET			0x80
#define	GBTABSCALE_STK_OFFSET		0x88
#define	GBTAB_STK_OFFSET		0x90
#define	NTHREADS_STK_OFFSET		0x98
#define	COUNT_STK_OFFSET		0xA0
#define MTX_STK_OFFSET			0xA8
#define OUTERITER_STK_OFFSET		0xB0
#define INNERITER_STK_OFFSET		0xB8
#define WORK_STK_OFFSET     		0xC0




	.regstk	8, 32, 0, 16
	.rotr	TypeJ[4]
	.rotf	DX[6], DY[6], DZ[6], Charge[8], RSqr[2], RInv[4], RInvT[2], RInvU[2], RInvErr[2], RInv2[3], RInv6[3], C6[4], C12[5]
	.rotp	pPipe[8]

#define	PIPE_DEPTH	8

	.global nb_kernel110nf_ia64_single
	.proc	nb_kernel110nf_ia64_single
	.align	32

nb_kernel110nf_ia64_single:
//	INIT 1
	{	.mmi
		alloc			xPFS = ar.pfs, _NINPUTS, _NLOCALS, _NOUTPUT, _NROTATE
		mov				spillPtr = sp
		mov				Tmp1 = EXP(-1)
	}
	{	.mfi
		nop				0x0
		nop				0x0
		add				argPtr = FACEL_STK_OFFSET, sp
	} ;;
//	INIT 2
	{	.mlx									
		ld8			pFacel = [argPtr], COUNT_STK_OFFSET - FACEL_STK_OFFSET
		movl			Tmp2 = 0x40c00000   // 6.0
	}
	{	.mii
		stf.spill		[spillPtr] = fs0, -16
		mov				LCSave = ar.lc
		add				sp = -10 * 16, sp
	} ;;
//	INIT 3	
	{	.mlx									
		stf.spill		[spillPtr] = fs1, -16
		movl			Tmp3 = 0x3ec00000
	} 
	{	.mmi								
		setf.exp		fHALF = Tmp1
		ld8				COUNT = [argPtr], POS_STK_OFFSET - COUNT_STK_OFFSET
		mov				PRSave	= pr
	} ;;
//	INIT 4	
	{	.mlx
		ld8				POSITION = [argPtr], CHARGE_STK_OFFSET - POS_STK_OFFSET
		movl			Tmp4 = 0x3ea00000
	}
	{	.mmi									
		setf.s			fSIX  = Tmp2
		stf.spill		[spillPtr] = fs2, -16
		mov				pr.rot	= 0x0
	} ;;
//  INIT 5	
	{	.mmi								
		ld8			CHARGE = [argPtr], FACTION_STK_OFFSET - CHARGE_STK_OFFSET
		setf.s			f3_8      = Tmp3
		mov			SHIFTVEC   = In_SHIFTVEC
	}
   	{	.mmi
		stf.spill		[spillPtr] = fs3, -16
		ldfs			Facel = [pFacel]
		nop			0x0
	} ;;
//  INIT 6	
	{	.mmi
		ld8				FACTION = [argPtr], VC_STK_OFFSET - FACTION_STK_OFFSET
		setf.s			f5_16 = Tmp4
		mov				FSHIFT   = In_FSHIFT
	} 
	{	.mfi
		stf.spill		[spillPtr] = fs4, -16
		nop			0x0
		mov			GID = In_GID
	} ;;
//  INIT 7	
	{	.mmf
		ld8			VC = [argPtr], NTYPE_STK_OFFSET - VC_STK_OFFSET
		mov			SHIFT = In_SHIFT
		nop			0x0
	}
	{	.mmf
		stf.spill		[spillPtr] = fs5, -16
		ld4			NRI = [In_NRI]
		fnorm 			fSIX = fSIX
	} ;;
//  INIT 8	
	{	.mmf
		ld8			NTYPE = [argPtr], TYPE_STK_OFFSET - NTYPE_STK_OFFSET
		mov			JJNR = In_JJNR
		fnorm			f3_8 = f3_8
	}	
	{	.mii
		stf.spill		[spillPtr] = fs6, -16
		mov			IINR = In_IINR
		mov			JINDEX = In_JINDEX
	} ;;
//  INIT 9		
	{	.mmf
		ld8			TYPE = [argPtr], NBFP_STK_OFFSET - TYPE_STK_OFFSET
		stf.spill		[spillPtr] = fs7, -16
		fnorm			f5_16 = f5_16
	} ;; 
//  INIT 10
	{	.mmi 
		ld8			NBFP = [argPtr], VNB_STK_OFFSET - NBFP_STK_OFFSET
		stf.spill		[spillPtr] = fs8, -16
		nop			0x0
	} ;;
//  INIT 11	
	{	.mmf
		ld8			VNB = [argPtr],	OUTERITER_STK_OFFSET - VNB_STK_OFFSET
		stf.spill		[spillPtr] = fs9, -16
		fadd			fTWELVE = fSIX, fSIX
	} ;;
//  INIT 12
	{	.mfi
		stf.spill		[spillPtr] = fs10
		fnorm			fHALF = fHALF
		nop			0x0
	} ;;
//  INIT 13
	{	.mmf
		ld8			OuterIter = [argPtr], INNERITER_STK_OFFSET - OUTERITER_STK_OFFSET
		ld4			NTYPE = [NTYPE]
                fnorm                   Facel = Facel
	} ;;
//  INIT 14
	{	.mfi
		ld8			InnerIter = [argPtr]
		nop			0x0
		mov         Ninner = 0
	} ;;
//  22 bundles used for init - still aligned.



	
threadLoop_nf: