nb_kernel102_ia32_sse2.intel_syntax.s
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S
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;#;# $Id: nb_kernel102_ia32_sse2.intel_syntax.s,v 1.1.2.2 2007/11/28 18:35:33 spoel Exp $;#;# Gromacs 4.0 Copyright (c) 1991-2003 ;# David van der Spoel, Erik Lindahl;#;# 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;#;# These files require GNU binutils 2.10 or later, since we;# use intel syntax for portability, or a recent version ;# of NASM that understands Extended 3DNow and SSE2 instructions.;# (NASM is normally only used with MS Visual C++).;# Since NASM and gnu as disagree on some definitions and use ;# completely different preprocessing options I have to introduce a;# trick: NASM uses ';' for comments, while gnu as uses '#' on x86.;# Gnu as treats ';' as a line break, i.e. ignores it. This is the;# reason why all comments need both symbols...;# The source is written for GNU as, with intel syntax. When you use;# NASM we redefine a couple of things. The false if-statement around ;# the following code is seen by GNU as, but NASM doesn't see it, so ;# the code inside is read by NASM but not gcc.; .if 0 # block below only read by NASM%define .section section%define .long dd%define .align align%define .globl global;# NASM only wants 'dword', not 'dword ptr'.%define ptr.equiv .equiv 2 %1 equ %2%endmacro; .endif # End of NASM-specific block; .intel_syntax noprefix # Line only read by gnu as.globl nb_kernel102_ia32_sse2.globl _nb_kernel102_ia32_sse2nb_kernel102_ia32_sse2: _nb_kernel102_ia32_sse2: .equiv nb102_p_nri, 8.equiv nb102_iinr, 12.equiv nb102_jindex, 16.equiv nb102_jjnr, 20.equiv nb102_shift, 24.equiv nb102_shiftvec, 28.equiv nb102_fshift, 32.equiv nb102_gid, 36.equiv nb102_pos, 40.equiv nb102_faction, 44.equiv nb102_charge, 48.equiv nb102_p_facel, 52.equiv nb102_argkrf, 56.equiv nb102_argcrf, 60.equiv nb102_Vc, 64.equiv nb102_type, 68.equiv nb102_p_ntype, 72.equiv nb102_vdwparam, 76.equiv nb102_Vvdw, 80.equiv nb102_p_tabscale, 84.equiv nb102_VFtab, 88.equiv nb102_invsqrta, 92.equiv nb102_dvda, 96.equiv nb102_p_gbtabscale, 100.equiv nb102_GBtab, 104.equiv nb102_p_nthreads, 108.equiv nb102_count, 112.equiv nb102_mtx, 116.equiv nb102_outeriter, 120.equiv nb102_inneriter, 124.equiv nb102_work, 128 ;# stack offsets for local variables ;# bottom of stack is cache-aligned for sse2 use .equiv nb102_ixO, 0.equiv nb102_iyO, 16.equiv nb102_izO, 32.equiv nb102_ixH1, 48.equiv nb102_iyH1, 64.equiv nb102_izH1, 80.equiv nb102_ixH2, 96.equiv nb102_iyH2, 112.equiv nb102_izH2, 128.equiv nb102_jxO, 144.equiv nb102_jyO, 160.equiv nb102_jzO, 176.equiv nb102_jxH1, 192.equiv nb102_jyH1, 208.equiv nb102_jzH1, 224.equiv nb102_jxH2, 240.equiv nb102_jyH2, 256.equiv nb102_jzH2, 272.equiv nb102_dxOO, 288.equiv nb102_dyOO, 304.equiv nb102_dzOO, 320.equiv nb102_dxOH1, 336.equiv nb102_dyOH1, 352.equiv nb102_dzOH1, 368.equiv nb102_dxOH2, 384.equiv nb102_dyOH2, 400.equiv nb102_dzOH2, 416.equiv nb102_dxH1O, 432.equiv nb102_dyH1O, 448.equiv nb102_dzH1O, 464.equiv nb102_dxH1H1, 480.equiv nb102_dyH1H1, 496.equiv nb102_dzH1H1, 512.equiv nb102_dxH1H2, 528.equiv nb102_dyH1H2, 544.equiv nb102_dzH1H2, 560.equiv nb102_dxH2O, 576.equiv nb102_dyH2O, 592.equiv nb102_dzH2O, 608.equiv nb102_dxH2H1, 624.equiv nb102_dyH2H1, 640.equiv nb102_dzH2H1, 656.equiv nb102_dxH2H2, 672.equiv nb102_dyH2H2, 688.equiv nb102_dzH2H2, 704.equiv nb102_qqOO, 720.equiv nb102_qqOH, 736.equiv nb102_qqHH, 752.equiv nb102_vctot, 768.equiv nb102_fixO, 784.equiv nb102_fiyO, 800.equiv nb102_fizO, 816.equiv nb102_fixH1, 832.equiv nb102_fiyH1, 848.equiv nb102_fizH1, 864.equiv nb102_fixH2, 880.equiv nb102_fiyH2, 896.equiv nb102_fizH2, 912.equiv nb102_fjxO, 928.equiv nb102_fjyO, 944.equiv nb102_fjzO, 960.equiv nb102_fjxH1, 976.equiv nb102_fjyH1, 992.equiv nb102_fjzH1, 1008.equiv nb102_fjxH2, 1024.equiv nb102_fjyH2, 1040.equiv nb102_fjzH2, 1056.equiv nb102_half, 1072.equiv nb102_three, 1088.equiv nb102_rsqOO, 1104.equiv nb102_rsqOH1, 1120.equiv nb102_rsqOH2, 1136.equiv nb102_rsqH1O, 1152.equiv nb102_rsqH1H1, 1168.equiv nb102_rsqH1H2, 1184.equiv nb102_rsqH2O, 1200.equiv nb102_rsqH2H1, 1216.equiv nb102_rsqH2H2, 1232.equiv nb102_rinvOO, 1248.equiv nb102_rinvOH1, 1264.equiv nb102_rinvOH2, 1280.equiv nb102_rinvH1O, 1296.equiv nb102_rinvH1H1, 1312.equiv nb102_rinvH1H2, 1328.equiv nb102_rinvH2O, 1344.equiv nb102_rinvH2H1, 1360.equiv nb102_rinvH2H2, 1376.equiv nb102_is3, 1392.equiv nb102_ii3, 1396.equiv nb102_innerjjnr, 1400.equiv nb102_innerk, 1404.equiv nb102_n, 1408.equiv nb102_nn1, 1412.equiv nb102_nri, 1416.equiv nb102_nouter, 1420.equiv nb102_ninner, 1424.equiv nb102_salign, 1428 push ebp mov ebp,esp push eax push ebx push ecx push edx push esi push edi sub esp, 1432 ;# local stack space mov eax, esp and eax, 0xf sub esp, eax mov [esp + nb102_salign], eax emms ;# Move args passed by reference to stack mov ecx, [ebp + nb102_p_nri] mov ecx, [ecx] mov [esp + nb102_nri], ecx ;# zero iteration counters mov eax, 0 mov [esp + nb102_nouter], eax mov [esp + nb102_ninner], eax ;# create constant floating-point factors on stack mov eax, 0x00000000 ;# lower half of double 0.5 IEEE (hex) mov ebx, 0x3fe00000 mov [esp + nb102_half], eax mov [esp + nb102_half+4], ebx movsd xmm1, [esp + nb102_half] shufpd xmm1, xmm1, 0 ;# splat to all elements movapd xmm3, xmm1 addpd xmm3, xmm3 ;# 1.0 movapd xmm2, xmm3 addpd xmm2, xmm2 ;# 2.0 addpd xmm3, xmm2 ;# 3.0 movapd [esp + nb102_half], xmm1 movapd [esp + nb102_three], xmm3 ;# assume we have at least one i particle - start directly mov ecx, [ebp + nb102_iinr] ;# ecx = pointer into iinr[] mov ebx, [ecx] ;# ebx =ii mov edx, [ebp + nb102_charge] movsd xmm3, [edx + ebx*8] ;# qO movsd xmm4, xmm3 ;# qO movsd xmm5, [edx + ebx*8 + 8] ;# qH mov esi, [ebp + nb102_p_facel] movsd xmm6, [esi] ;# facel mulsd xmm3, xmm3 ;# qO*qO mulsd xmm4, xmm5 ;# qO*qH mulsd xmm5, xmm5 ;# qH*qH mulsd xmm3, xmm6 mulsd xmm4, xmm6 mulsd xmm5, xmm6 shufpd xmm3, xmm3, 0 shufpd xmm4, xmm4, 0 shufpd xmm5, xmm5, 0 movapd [esp + nb102_qqOO], xmm3 movapd [esp + nb102_qqOH], xmm4 movapd [esp + nb102_qqHH], xmm5.nb102_threadloop: mov esi, [ebp + nb102_count] ;# pointer to sync counter mov eax, [esi].nb102_spinlock: mov ebx, eax ;# ebx=*count=nn0 add ebx, 1 ;# ebx=nn1=nn0+10 lock cmpxchg [esi], ebx ;# write nn1 to *counter, ;# if it hasnt changed. ;# or reread *counter to eax. pause ;# -> better p4 performance jnz .nb102_spinlock ;# if(nn1>nri) nn1=nri mov ecx, [esp + nb102_nri] mov edx, ecx sub ecx, ebx cmovle ebx, edx ;# if(nn1>nri) nn1=nri ;# Cleared the spinlock if we got here. ;# eax contains nn0, ebx contains nn1. mov [esp + nb102_n], eax mov [esp + nb102_nn1], ebx sub ebx, eax ;# calc number of outer lists mov esi, eax ;# copy n to esi jg .nb102_outerstart jmp .nb102_end.nb102_outerstart: ;# ebx contains number of outer iterations add ebx, [esp + nb102_nouter] mov [esp + nb102_nouter], ebx.nb102_outer: mov eax, [ebp + nb102_shift] ;# eax = pointer into shift[] mov ebx, [eax+esi*4] ;# ebx=shift[n] lea ebx, [ebx + ebx*2] ;# ebx=3*is mov [esp + nb102_is3],ebx ;# store is3 mov eax, [ebp + nb102_shiftvec] ;# eax = base of shiftvec[] movsd xmm0, [eax + ebx*8] movsd xmm1, [eax + ebx*8 + 8] movsd xmm2, [eax + ebx*8 + 16] mov ecx, [ebp + nb102_iinr] ;# ecx = pointer into iinr[] mov ebx, [ecx+esi*4] ;# ebx =ii lea ebx, [ebx + ebx*2] ;# ebx = 3*ii=ii3 mov eax, [ebp + nb102_pos] ;# eax = base of pos[] mov [esp + nb102_ii3], ebx movapd xmm3, xmm0 movapd xmm4, xmm1 movapd xmm5, xmm2 addsd xmm3, [eax + ebx*8] addsd xmm4, [eax + ebx*8 + 8] addsd xmm5, [eax + ebx*8 + 16] shufpd xmm3, xmm3, 0 shufpd xmm4, xmm4, 0 shufpd xmm5, xmm5, 0 movapd [esp + nb102_ixO], xmm3 movapd [esp + nb102_iyO], xmm4 movapd [esp + nb102_izO], xmm5 movsd xmm3, xmm0 movsd xmm4, xmm1 movsd xmm5, xmm2 addsd xmm0, [eax + ebx*8 + 24] addsd xmm1, [eax + ebx*8 + 32] addsd xmm2, [eax + ebx*8 + 40] addsd xmm3, [eax + ebx*8 + 48] addsd xmm4, [eax + ebx*8 + 56] addsd xmm5, [eax + ebx*8 + 64] shufpd xmm0, xmm0, 0 shufpd xmm1, xmm1, 0 shufpd xmm2, xmm2, 0 shufpd xmm3, xmm3, 0 shufpd xmm4, xmm4, 0 shufpd xmm5, xmm5, 0 movapd [esp + nb102_ixH1], xmm0 movapd [esp + nb102_iyH1], xmm1 movapd [esp + nb102_izH1], xmm2 movapd [esp + nb102_ixH2], xmm3 movapd [esp + nb102_iyH2], xmm4 movapd [esp + nb102_izH2], xmm5 ;# clear vctot and i forces xorpd xmm4, xmm4 movapd [esp + nb102_vctot], xmm4 movapd [esp + nb102_fixO], xmm4 movapd [esp + nb102_fiyO], xmm4 movapd [esp + nb102_fizO], xmm4 movapd [esp + nb102_fixH1], xmm4 movapd [esp + nb102_fiyH1], xmm4 movapd [esp + nb102_fizH1], xmm4 movapd [esp + nb102_fixH2], xmm4 movapd [esp + nb102_fiyH2], xmm4 movapd [esp + nb102_fizH2], xmm4 mov eax, [ebp + nb102_jindex] mov ecx, [eax+esi*4] ;# jindex[n] mov edx, [eax +esi*4 + 4] ;# jindex[n+1] sub edx, ecx ;# number of innerloop atoms mov esi, [ebp + nb102_pos] mov edi, [ebp + nb102_faction] mov eax, [ebp + nb102_jjnr] shl ecx, 2 add eax, ecx mov [esp + nb102_innerjjnr], eax ;# pointer to jjnr[nj0] mov ecx, edx sub edx, 2 add ecx, [esp + nb102_ninner] mov [esp + nb102_ninner], ecx add edx, 0 mov [esp + nb102_innerk], edx ;# number of innerloop atoms jge .nb102_unroll_loop jmp .nb102_checksingle.nb102_unroll_loop: ;# twice unrolled innerloop here mov edx, [esp + nb102_innerjjnr] ;# pointer to jjnr[k] mov eax, [edx] mov ebx, [edx + 4] add dword ptr [esp + nb102_innerjjnr], 8 ;# advance pointer (unrolled 2) mov esi, [ebp + nb102_pos] ;# base of pos[] lea eax, [eax + eax*2] ;# replace jnr with j3 lea ebx, [ebx + ebx*2] ;# move j coordinates to local temp variables movlpd xmm2, [esi + eax*8] movlpd xmm3, [esi + eax*8 + 8] movlpd xmm4, [esi + eax*8 + 16] movlpd xmm5, [esi + eax*8 + 24] movlpd xmm6, [esi + eax*8 + 32] movlpd xmm7, [esi + eax*8 + 40] movhpd xmm2, [esi + ebx*8] movhpd xmm3, [esi + ebx*8 + 8] movhpd xmm4, [esi + ebx*8 + 16] movhpd xmm5, [esi + ebx*8 + 24] movhpd xmm6, [esi + ebx*8 + 32] movhpd xmm7, [esi + ebx*8 + 40] movapd [esp + nb102_jxO], xmm2 movapd [esp + nb102_jyO], xmm3 movapd [esp + nb102_jzO], xmm4 movapd [esp + nb102_jxH1], xmm5 movapd [esp + nb102_jyH1], xmm6 movapd [esp + nb102_jzH1], xmm7 movlpd xmm2, [esi + eax*8 + 48] movlpd xmm3, [esi + eax*8 + 56] movlpd xmm4, [esi + eax*8 + 64] movhpd xmm2, [esi + ebx*8 + 48] movhpd xmm3, [esi + ebx*8 + 56] movhpd xmm4, [esi + ebx*8 + 64] movapd [esp + nb102_jxH2], xmm2 movapd [esp + nb102_jyH2], xmm3 movapd [esp + nb102_jzH2], xmm4 movapd xmm0, [esp + nb102_ixO] movapd xmm1, [esp + nb102_iyO] movapd xmm2, [esp + nb102_izO] movapd xmm3, [esp + nb102_ixO] movapd xmm4, [esp + nb102_iyO] movapd xmm5, [esp + nb102_izO] subpd xmm0, [esp + nb102_jxO] subpd xmm1, [esp + nb102_jyO] subpd xmm2, [esp + nb102_jzO] subpd xmm3, [esp + nb102_jxH1] subpd xmm4, [esp + nb102_jyH1] subpd xmm5, [esp + nb102_jzH1] movapd [esp + nb102_dxOO], xmm0 movapd [esp + nb102_dyOO], xmm1 movapd [esp + nb102_dzOO], xmm2 mulpd xmm0, xmm0 mulpd xmm1, xmm1 mulpd xmm2, xmm2 movapd [esp + nb102_dxOH1], xmm3 movapd [esp + nb102_dyOH1], xmm4 movapd [esp + nb102_dzOH1], xmm5 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