nb_kernel201_ia32_sse2.s
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#### $Id: nb_kernel201_ia32_sse2.s,v 1.1.2.2 2007/11/28 18:35:34 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##.globl nb_kernel201_ia32_sse2.globl _nb_kernel201_ia32_sse2nb_kernel201_ia32_sse2: _nb_kernel201_ia32_sse2: .set nb201_p_nri, 8.set nb201_iinr, 12.set nb201_jindex, 16.set nb201_jjnr, 20.set nb201_shift, 24.set nb201_shiftvec, 28.set nb201_fshift, 32.set nb201_gid, 36.set nb201_pos, 40.set nb201_faction, 44.set nb201_charge, 48.set nb201_p_facel, 52.set nb201_argkrf, 56.set nb201_argcrf, 60.set nb201_Vc, 64.set nb201_type, 68.set nb201_p_ntype, 72.set nb201_vdwparam, 76.set nb201_Vvdw, 80.set nb201_p_tabscale, 84.set nb201_VFtab, 88.set nb201_invsqrta, 92.set nb201_dvda, 96.set nb201_p_gbtabscale, 100.set nb201_GBtab, 104.set nb201_p_nthreads, 108.set nb201_count, 112.set nb201_mtx, 116.set nb201_outeriter, 120.set nb201_inneriter, 124.set nb201_work, 128 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb201_ixO, 0.set nb201_iyO, 16.set nb201_izO, 32.set nb201_ixH1, 48.set nb201_iyH1, 64.set nb201_izH1, 80.set nb201_ixH2, 96.set nb201_iyH2, 112.set nb201_izH2, 128.set nb201_iqO, 144.set nb201_iqH, 160.set nb201_dxO, 176.set nb201_dyO, 192.set nb201_dzO, 208.set nb201_dxH1, 224.set nb201_dyH1, 240.set nb201_dzH1, 256.set nb201_dxH2, 272.set nb201_dyH2, 288.set nb201_dzH2, 304.set nb201_qqO, 320.set nb201_qqH, 336.set nb201_vctot, 352.set nb201_fixO, 384.set nb201_fiyO, 400.set nb201_fizO, 416.set nb201_fixH1, 432.set nb201_fiyH1, 448.set nb201_fizH1, 464.set nb201_fixH2, 480.set nb201_fiyH2, 496.set nb201_fizH2, 512.set nb201_fjx, 528.set nb201_fjy, 544.set nb201_fjz, 560.set nb201_half, 576.set nb201_three, 592.set nb201_two, 608.set nb201_krf, 624.set nb201_crf, 640.set nb201_krsqO, 656.set nb201_krsqH1, 672.set nb201_krsqH2, 688.set nb201_is3, 704.set nb201_ii3, 708.set nb201_innerjjnr, 712.set nb201_innerk, 716.set nb201_n, 720.set nb201_nn1, 724.set nb201_nri, 728.set nb201_nouter, 732.set nb201_ninner, 736.set nb201_salign, 740 pushl %ebp movl %esp,%ebp pushl %eax pushl %ebx pushl %ecx pushl %edx pushl %esi pushl %edi subl $744,%esp ## local stack space movl %esp,%eax andl $0xf,%eax subl %eax,%esp movl %eax,nb201_salign(%esp) emms ## Move args passed by reference to stack movl nb201_p_nri(%ebp),%ecx movl (%ecx),%ecx movl %ecx,nb201_nri(%esp) ## zero iteration counters movl $0,%eax movl %eax,nb201_nouter(%esp) movl %eax,nb201_ninner(%esp) ## create constant floating-point factors on stack movl $0x00000000,%eax ## lower half of double 0.5 IEEE (hex) movl $0x3fe00000,%ebx movl %eax,nb201_half(%esp) movl %ebx,nb201_half+4(%esp) movsd nb201_half(%esp),%xmm1 shufpd $0,%xmm1,%xmm1 ## splat to all elements movapd %xmm1,%xmm3 addpd %xmm3,%xmm3 ## 1.0 movapd %xmm3,%xmm2 addpd %xmm2,%xmm2 ## 2.0 addpd %xmm2,%xmm3 ## 3.0 movapd %xmm1,nb201_half(%esp) movapd %xmm2,nb201_two(%esp) movapd %xmm3,nb201_three(%esp) movl nb201_argkrf(%ebp),%esi movl nb201_argcrf(%ebp),%edi movsd (%esi),%xmm5 movsd (%edi),%xmm6 shufpd $0,%xmm5,%xmm5 shufpd $0,%xmm6,%xmm6 movapd %xmm5,nb201_krf(%esp) movapd %xmm6,nb201_crf(%esp) ## assume we have at least one i particle - start directly movl nb201_iinr(%ebp),%ecx ## ecx = pointer into iinr[] movl (%ecx),%ebx ## ebx =ii movl nb201_charge(%ebp),%edx movsd (%edx,%ebx,8),%xmm3 movsd 8(%edx,%ebx,8),%xmm4 movl nb201_p_facel(%ebp),%esi movsd (%esi),%xmm5 mulsd %xmm5,%xmm3 mulsd %xmm5,%xmm4 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 movapd %xmm3,nb201_iqO(%esp) movapd %xmm4,nb201_iqH(%esp)_nb_kernel201_ia32_sse2.nb201_threadloop: movl nb201_count(%ebp),%esi ## pointer to sync counter movl (%esi),%eax_nb_kernel201_ia32_sse2.nb201_spinlock: movl %eax,%ebx ## ebx=*count=nn0 addl $1,%ebx ## ebx=nn1=nn0+10 lock cmpxchgl %ebx,(%esi) ## write nn1 to *counter, ## if it hasnt changed. ## or reread *counter to eax. pause ## -> better p4 performance jnz _nb_kernel201_ia32_sse2.nb201_spinlock ## if(nn1>nri) nn1=nri movl nb201_nri(%esp),%ecx movl %ecx,%edx subl %ebx,%ecx cmovlel %edx,%ebx ## if(nn1>nri) nn1=nri ## Cleared the spinlock if we got here. ## eax contains nn0, ebx contains nn1. movl %eax,nb201_n(%esp) movl %ebx,nb201_nn1(%esp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel201_ia32_sse2.nb201_outerstart jmp _nb_kernel201_ia32_sse2.nb201_end_nb_kernel201_ia32_sse2.nb201_outerstart: ## ebx contains number of outer iterations addl nb201_nouter(%esp),%ebx movl %ebx,nb201_nouter(%esp)_nb_kernel201_ia32_sse2.nb201_outer: movl nb201_shift(%ebp),%eax ## eax = pointer into shift[] movl (%eax,%esi,4),%ebx ## ebx=shift[n] leal (%ebx,%ebx,2),%ebx ## ebx=3*is movl %ebx,nb201_is3(%esp) ## store is3 movl nb201_shiftvec(%ebp),%eax ## eax = base of shiftvec[] movsd (%eax,%ebx,8),%xmm0 movsd 8(%eax,%ebx,8),%xmm1 movsd 16(%eax,%ebx,8),%xmm2 movl nb201_iinr(%ebp),%ecx ## ecx = pointer into iinr[] movl (%ecx,%esi,4),%ebx ## ebx =ii movapd %xmm0,%xmm3 movapd %xmm1,%xmm4 movapd %xmm2,%xmm5 leal (%ebx,%ebx,2),%ebx ## ebx = 3*ii=ii3 movl nb201_pos(%ebp),%eax ## eax = base of pos[] movl %ebx,nb201_ii3(%esp) addsd (%eax,%ebx,8),%xmm3 addsd 8(%eax,%ebx,8),%xmm4 addsd 16(%eax,%ebx,8),%xmm5 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 shufpd $0,%xmm5,%xmm5 movapd %xmm3,nb201_ixO(%esp) movapd %xmm4,nb201_iyO(%esp) movapd %xmm5,nb201_izO(%esp) movsd %xmm0,%xmm3 movsd %xmm1,%xmm4 movsd %xmm2,%xmm5 addsd 24(%eax,%ebx,8),%xmm0 addsd 32(%eax,%ebx,8),%xmm1 addsd 40(%eax,%ebx,8),%xmm2 addsd 48(%eax,%ebx,8),%xmm3 addsd 56(%eax,%ebx,8),%xmm4 addsd 64(%eax,%ebx,8),%xmm5 shufpd $0,%xmm0,%xmm0 shufpd $0,%xmm1,%xmm1 shufpd $0,%xmm2,%xmm2 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 shufpd $0,%xmm5,%xmm5 movapd %xmm0,nb201_ixH1(%esp) movapd %xmm1,nb201_iyH1(%esp) movapd %xmm2,nb201_izH1(%esp) movapd %xmm3,nb201_ixH2(%esp) movapd %xmm4,nb201_iyH2(%esp) movapd %xmm5,nb201_izH2(%esp) ## clear vctot and i forces xorpd %xmm4,%xmm4 movapd %xmm4,nb201_vctot(%esp) movapd %xmm4,nb201_fixO(%esp) movapd %xmm4,nb201_fiyO(%esp) movapd %xmm4,nb201_fizO(%esp) movapd %xmm4,nb201_fixH1(%esp) movapd %xmm4,nb201_fiyH1(%esp) movapd %xmm4,nb201_fizH1(%esp) movapd %xmm4,nb201_fixH2(%esp) movapd %xmm4,nb201_fiyH2(%esp) movapd %xmm4,nb201_fizH2(%esp) movl nb201_jindex(%ebp),%eax movl (%eax,%esi,4),%ecx ## jindex[n] movl 4(%eax,%esi,4),%edx ## jindex[n+1] subl %ecx,%edx ## number of innerloop atoms movl nb201_pos(%ebp),%esi movl nb201_faction(%ebp),%edi movl nb201_jjnr(%ebp),%eax shll $2,%ecx addl %ecx,%eax movl %eax,nb201_innerjjnr(%esp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb201_ninner(%esp),%ecx movl %ecx,nb201_ninner(%esp) addl $0,%edx movl %edx,nb201_innerk(%esp) ## number of innerloop atoms jge _nb_kernel201_ia32_sse2.nb201_unroll_loop jmp _nb_kernel201_ia32_sse2.nb201_checksingle_nb_kernel201_ia32_sse2.nb201_unroll_loop: ## twice unrolled innerloop here movl nb201_innerjjnr(%esp),%edx ## pointer to jjnr[k] movl (%edx),%eax movl 4(%edx),%ebx addl $8,nb201_innerjjnr(%esp) ## advance pointer (unrolled 2) movl nb201_charge(%ebp),%esi ## base of charge[] movlpd (%esi,%eax,8),%xmm3 movhpd (%esi,%ebx,8),%xmm3 movapd %xmm3,%xmm4 mulpd nb201_iqO(%esp),%xmm3 mulpd nb201_iqH(%esp),%xmm4 movapd %xmm3,nb201_qqO(%esp) movapd %xmm4,nb201_qqH(%esp) movl nb201_pos(%ebp),%esi ## base of pos[] leal (%eax,%eax,2),%eax ## replace jnr with j3 leal (%ebx,%ebx,2),%ebx ## move two coordinates to xmm0-xmm2 movlpd (%esi,%eax,8),%xmm0 movlpd 8(%esi,%eax,8),%xmm1 movlpd 16(%esi,%eax,8),%xmm2 movhpd (%esi,%ebx,8),%xmm0 movhpd 8(%esi,%ebx,8),%xmm1 movhpd 16(%esi,%ebx,8),%xmm2 ## move ixO-izO to xmm4-xmm6 movapd nb201_ixO(%esp),%xmm4 movapd nb201_iyO(%esp),%xmm5 movapd nb201_izO(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb201_dxO(%esp) movapd %xmm5,nb201_dyO(%esp) movapd %xmm6,nb201_dzO(%esp) ## square it mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 mulpd %xmm6,%xmm6 addpd %xmm5,%xmm4 addpd %xmm6,%xmm4 movapd %xmm4,%xmm7 ## rsqO in xmm7 ## move ixH1-izH1 to xmm4-xmm6 movapd nb201_ixH1(%esp),%xmm4 movapd nb201_iyH1(%esp),%xmm5 movapd nb201_izH1(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb201_dxH1(%esp) movapd %xmm5,nb201_dyH1(%esp) movapd %xmm6,nb201_dzH1(%esp) ## square it mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 mulpd %xmm6,%xmm6 addpd %xmm5,%xmm6 addpd %xmm4,%xmm6 ## rsqH1 in xmm6 ## move ixH2-izH2 to xmm3-xmm5 movapd nb201_ixH2(%esp),%xmm3 movapd nb201_iyH2(%esp),%xmm4 movapd nb201_izH2(%esp),%xmm5 ## calc dr subpd %xmm0,%xmm3 subpd %xmm1,%xmm4 subpd %xmm2,%xmm5 ## store dr movapd %xmm3,nb201_dxH2(%esp) movapd %xmm4,nb201_dyH2(%esp) movapd %xmm5,nb201_dzH2(%esp) ## square it mulpd %xmm3,%xmm3 mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 addpd %xmm4,%xmm5 addpd %xmm3,%xmm5 ## rsqH2 in xmm5, rsqH1 in xmm6, rsqO in xmm7 movapd %xmm5,%xmm0 movapd %xmm6,%xmm1 movapd %xmm7,%xmm2 mulpd nb201_krf(%esp),%xmm0 mulpd nb201_krf(%esp),%xmm1 mulpd nb201_krf(%esp),%xmm2 movapd %xmm0,nb201_krsqH2(%esp) movapd %xmm1,nb201_krsqH1(%esp) movapd %xmm2,nb201_krsqO(%esp) ## start with rsqO - put seed in xmm2 cvtpd2ps %xmm7,%xmm2 rsqrtps %xmm2,%xmm2 cvtps2pd %xmm2,%xmm2 movapd %xmm2,%xmm3 mulpd %xmm2,%xmm2 movapd nb201_three(%esp),%xmm4 mulpd %xmm7,%xmm2 ## rsq*lu*lu subpd %xmm2,%xmm4 ## 30-rsq*lu*lu mulpd %xmm3,%xmm4 ## lu*(3-rsq*lu*lu) mulpd nb201_half(%esp),%xmm4 ## iter1 ( new lu) movapd %xmm4,%xmm3 mulpd %xmm4,%xmm4 ## lu*lu mulpd %xmm4,%xmm7 ## rsq*lu*lu movapd nb201_three(%esp),%xmm4 subpd %xmm7,%xmm4 ## 3-rsq*lu*lu mulpd %xmm3,%xmm4 ## lu*( 3-rsq*lu*lu) mulpd nb201_half(%esp),%xmm4 ## rinv movapd %xmm4,%xmm7 ## rinvO in xmm7 ## rsqH1 - seed in xmm2 cvtpd2ps %xmm6,%xmm2 rsqrtps %xmm2,%xmm2 cvtps2pd %xmm2,%xmm2 movapd %xmm2,%xmm3 mulpd %xmm2,%xmm2 movapd nb201_three(%esp),%xmm4⌨️ 快捷键说明
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