nb_kernel231_ia32_sse2.s
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#### $Id: nb_kernel231_ia32_sse2.s,v 1.1.2.2 2007/11/28 18:35:35 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_kernel231_ia32_sse2.globl _nb_kernel231_ia32_sse2nb_kernel231_ia32_sse2: _nb_kernel231_ia32_sse2: .set nb231_p_nri, 8.set nb231_iinr, 12.set nb231_jindex, 16.set nb231_jjnr, 20.set nb231_shift, 24.set nb231_shiftvec, 28.set nb231_fshift, 32.set nb231_gid, 36.set nb231_pos, 40.set nb231_faction, 44.set nb231_charge, 48.set nb231_p_facel, 52.set nb231_argkrf, 56.set nb231_argcrf, 60.set nb231_Vc, 64.set nb231_type, 68.set nb231_p_ntype, 72.set nb231_vdwparam, 76.set nb231_Vvdw, 80.set nb231_p_tabscale, 84.set nb231_VFtab, 88.set nb231_invsqrta, 92.set nb231_dvda, 96.set nb231_p_gbtabscale, 100.set nb231_GBtab, 104.set nb231_p_nthreads, 108.set nb231_count, 112.set nb231_mtx, 116.set nb231_outeriter, 120.set nb231_inneriter, 124.set nb231_work, 128 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb231_ixO, 0.set nb231_iyO, 16.set nb231_izO, 32.set nb231_ixH1, 48.set nb231_iyH1, 64.set nb231_izH1, 80.set nb231_ixH2, 96.set nb231_iyH2, 112.set nb231_izH2, 128.set nb231_iqO, 144.set nb231_iqH, 160.set nb231_dxO, 176.set nb231_dyO, 192.set nb231_dzO, 208.set nb231_dxH1, 224.set nb231_dyH1, 240.set nb231_dzH1, 256.set nb231_dxH2, 272.set nb231_dyH2, 288.set nb231_dzH2, 304.set nb231_qqO, 320.set nb231_qqH, 336.set nb231_c6, 352.set nb231_c12, 368.set nb231_tsc, 384.set nb231_fstmp, 400.set nb231_vctot, 416.set nb231_Vvdwtot, 432.set nb231_fixO, 448.set nb231_fiyO, 464.set nb231_fizO, 480.set nb231_fixH1, 496.set nb231_fiyH1, 512.set nb231_fizH1, 528.set nb231_fixH2, 544.set nb231_fiyH2, 560.set nb231_fizH2, 576.set nb231_fjx, 592.set nb231_fjy, 608.set nb231_fjz, 624.set nb231_half, 640.set nb231_three, 656.set nb231_two, 672.set nb231_krf, 688.set nb231_crf, 704.set nb231_krsqO, 720.set nb231_krsqH1, 736.set nb231_krsqH2, 752.set nb231_rsqO, 768.set nb231_rinvH1, 784.set nb231_rinvH2, 800.set nb231_is3, 816.set nb231_ii3, 820.set nb231_ntia, 824.set nb231_innerjjnr, 828.set nb231_innerk, 832.set nb231_n, 836.set nb231_nn1, 840.set nb231_nri, 844.set nb231_nouter, 848.set nb231_ninner, 852.set nb231_salign, 856 pushl %ebp movl %esp,%ebp pushl %eax pushl %ebx pushl %ecx pushl %edx pushl %esi pushl %edi subl $860,%esp ## local stack space movl %esp,%eax andl $0xf,%eax subl %eax,%esp movl %eax,nb231_salign(%esp) emms ## Move args passed by reference to stack movl nb231_p_nri(%ebp),%ecx movl (%ecx),%ecx movl %ecx,nb231_nri(%esp) ## zero iteration counters movl $0,%eax movl %eax,nb231_nouter(%esp) movl %eax,nb231_ninner(%esp) movl nb231_p_tabscale(%ebp),%eax movsd (%eax),%xmm3 shufpd $0,%xmm3,%xmm3 movapd %xmm3,nb231_tsc(%esp) ## create constant floating-point factors on stack movl $0x00000000,%eax ## lower half of double 0.5 IEEE (hex) movl $0x3fe00000,%ebx movl %eax,nb231_half(%esp) movl %ebx,nb231_half+4(%esp) movsd nb231_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,nb231_half(%esp) movapd %xmm2,nb231_two(%esp) movapd %xmm3,nb231_three(%esp) movl nb231_argkrf(%ebp),%esi movl nb231_argcrf(%ebp),%edi movsd (%esi),%xmm5 movsd (%edi),%xmm6 shufpd $0,%xmm5,%xmm5 shufpd $0,%xmm6,%xmm6 movapd %xmm5,nb231_krf(%esp) movapd %xmm6,nb231_crf(%esp) ## assume we have at least one i particle - start directly movl nb231_iinr(%ebp),%ecx ## ecx = pointer into iinr[] movl (%ecx),%ebx ## ebx =ii movl nb231_charge(%ebp),%edx movsd (%edx,%ebx,8),%xmm3 movsd 8(%edx,%ebx,8),%xmm4 movl nb231_p_facel(%ebp),%esi movsd (%esi),%xmm5 mulsd %xmm5,%xmm3 mulsd %xmm5,%xmm4 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 movapd %xmm3,nb231_iqO(%esp) movapd %xmm4,nb231_iqH(%esp) movl nb231_type(%ebp),%edx movl (%edx,%ebx,4),%ecx shll %ecx movl nb231_p_ntype(%ebp),%edi imull (%edi),%ecx ## ecx = ntia = 2*ntype*type[ii0] movl %ecx,nb231_ntia(%esp)_nb_kernel231_ia32_sse2.nb231_threadloop: movl nb231_count(%ebp),%esi ## pointer to sync counter movl (%esi),%eax_nb_kernel231_ia32_sse2.nb231_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_kernel231_ia32_sse2.nb231_spinlock ## if(nn1>nri) nn1=nri movl nb231_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,nb231_n(%esp) movl %ebx,nb231_nn1(%esp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel231_ia32_sse2.nb231_outerstart jmp _nb_kernel231_ia32_sse2.nb231_end_nb_kernel231_ia32_sse2.nb231_outerstart: ## ebx contains number of outer iterations addl nb231_nouter(%esp),%ebx movl %ebx,nb231_nouter(%esp)_nb_kernel231_ia32_sse2.nb231_outer: movl nb231_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,nb231_is3(%esp) ## store is3 movl nb231_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 nb231_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 nb231_pos(%ebp),%eax ## eax = base of pos[] movl %ebx,nb231_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,nb231_ixO(%esp) movapd %xmm4,nb231_iyO(%esp) movapd %xmm5,nb231_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,nb231_ixH1(%esp) movapd %xmm1,nb231_iyH1(%esp) movapd %xmm2,nb231_izH1(%esp) movapd %xmm3,nb231_ixH2(%esp) movapd %xmm4,nb231_iyH2(%esp) movapd %xmm5,nb231_izH2(%esp) ## clear vctot and i forces xorpd %xmm4,%xmm4 movapd %xmm4,nb231_vctot(%esp) movapd %xmm4,nb231_Vvdwtot(%esp) movapd %xmm4,nb231_fixO(%esp) movapd %xmm4,nb231_fiyO(%esp) movapd %xmm4,nb231_fizO(%esp) movapd %xmm4,nb231_fixH1(%esp) movapd %xmm4,nb231_fiyH1(%esp) movapd %xmm4,nb231_fizH1(%esp) movapd %xmm4,nb231_fixH2(%esp) movapd %xmm4,nb231_fiyH2(%esp) movapd %xmm4,nb231_fizH2(%esp) movl nb231_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 nb231_pos(%ebp),%esi movl nb231_faction(%ebp),%edi movl nb231_jjnr(%ebp),%eax shll $2,%ecx addl %ecx,%eax movl %eax,nb231_innerjjnr(%esp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb231_ninner(%esp),%ecx movl %ecx,nb231_ninner(%esp) addl $0,%edx movl %edx,nb231_innerk(%esp) ## number of innerloop atoms jge _nb_kernel231_ia32_sse2.nb231_unroll_loop jmp _nb_kernel231_ia32_sse2.nb231_checksingle_nb_kernel231_ia32_sse2.nb231_unroll_loop: ## twice unrolled innerloop here movl nb231_innerjjnr(%esp),%edx ## pointer to jjnr[k] movl (%edx),%eax movl 4(%edx),%ebx addl $8,nb231_innerjjnr(%esp) ## advance pointer (unrolled 2) movl nb231_charge(%ebp),%esi ## base of charge[] movlpd (%esi,%eax,8),%xmm3 movhpd (%esi,%ebx,8),%xmm3 movapd %xmm3,%xmm4 mulpd nb231_iqO(%esp),%xmm3 mulpd nb231_iqH(%esp),%xmm4 movd %eax,%mm0 ## use mmx registers as temp storage movd %ebx,%mm1 movapd %xmm3,nb231_qqO(%esp) movapd %xmm4,nb231_qqH(%esp) movl nb231_type(%ebp),%esi movl (%esi,%eax,4),%eax movl (%esi,%ebx,4),%ebx movl nb231_vdwparam(%ebp),%esi shll %eax shll %ebx movl nb231_ntia(%esp),%edi addl %edi,%eax addl %edi,%ebx movlpd (%esi,%eax,8),%xmm6 ## c6a movlpd (%esi,%ebx,8),%xmm7 ## c6b movhpd 8(%esi,%eax,8),%xmm6 ## c6a c12a movhpd 8(%esi,%ebx,8),%xmm7 ## c6b c12b movapd %xmm6,%xmm4 unpcklpd %xmm7,%xmm4 unpckhpd %xmm7,%xmm6 movd %mm0,%eax movd %mm1,%ebx movapd %xmm4,nb231_c6(%esp) movapd %xmm6,nb231_c12(%esp) movl nb231_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 nb231_ixO(%esp),%xmm4 movapd nb231_iyO(%esp),%xmm5 movapd nb231_izO(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb231_dxO(%esp) movapd %xmm5,nb231_dyO(%esp) movapd %xmm6,nb231_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 movapd %xmm7,nb231_rsqO(%esp) ## move ixH1-izH1 to xmm4-xmm6 movapd nb231_ixH1(%esp),%xmm4 movapd nb231_iyH1(%esp),%xmm5 movapd nb231_izH1(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb231_dxH1(%esp) movapd %xmm5,nb231_dyH1(%esp) movapd %xmm6,nb231_dzH1(%esp) ## square it mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 mulpd %xmm6,%xmm6⌨️ 快捷键说明
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