nb_kernel131_ia32_sse2.s
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#### $Id: nb_kernel131_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_kernel131_ia32_sse2.globl _nb_kernel131_ia32_sse2nb_kernel131_ia32_sse2: _nb_kernel131_ia32_sse2: .set nb131_p_nri, 8.set nb131_iinr, 12.set nb131_jindex, 16.set nb131_jjnr, 20.set nb131_shift, 24.set nb131_shiftvec, 28.set nb131_fshift, 32.set nb131_gid, 36.set nb131_pos, 40.set nb131_faction, 44.set nb131_charge, 48.set nb131_p_facel, 52.set nb131_argkrf, 56.set nb131_argcrf, 60.set nb131_Vc, 64.set nb131_type, 68.set nb131_p_ntype, 72.set nb131_vdwparam, 76.set nb131_Vvdw, 80.set nb131_p_tabscale, 84.set nb131_VFtab, 88.set nb131_invsqrta, 92.set nb131_dvda, 96.set nb131_p_gbtabscale, 100.set nb131_GBtab, 104.set nb131_p_nthreads, 108.set nb131_count, 112.set nb131_mtx, 116.set nb131_outeriter, 120.set nb131_inneriter, 124.set nb131_work, 128 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb131_ixO, 0.set nb131_iyO, 16.set nb131_izO, 32.set nb131_ixH1, 48.set nb131_iyH1, 64.set nb131_izH1, 80.set nb131_ixH2, 96.set nb131_iyH2, 112.set nb131_izH2, 128.set nb131_iqO, 144.set nb131_iqH, 160.set nb131_dxO, 176.set nb131_dyO, 192.set nb131_dzO, 208.set nb131_dxH1, 224.set nb131_dyH1, 240.set nb131_dzH1, 256.set nb131_dxH2, 272.set nb131_dyH2, 288.set nb131_dzH2, 304.set nb131_qqO, 320.set nb131_qqH, 336.set nb131_c6, 352.set nb131_c12, 368.set nb131_tsc, 384.set nb131_fstmp, 400.set nb131_vctot, 416.set nb131_Vvdwtot, 432.set nb131_fixO, 448.set nb131_fiyO, 464.set nb131_fizO, 480.set nb131_fixH1, 496.set nb131_fiyH1, 512.set nb131_fizH1, 528.set nb131_fixH2, 544.set nb131_fiyH2, 560.set nb131_fizH2, 576.set nb131_fjx, 592.set nb131_fjy, 608.set nb131_fjz, 624.set nb131_half, 640.set nb131_three, 656.set nb131_two, 672.set nb131_krsqO, 720.set nb131_krsqH1, 736.set nb131_krsqH2, 752.set nb131_rsqO, 768.set nb131_rinvH1, 784.set nb131_rinvH2, 800.set nb131_is3, 816.set nb131_ii3, 820.set nb131_ntia, 824.set nb131_innerjjnr, 828.set nb131_innerk, 832.set nb131_n, 836.set nb131_nn1, 840.set nb131_nri, 844.set nb131_nouter, 848.set nb131_ninner, 852.set nb131_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,nb131_salign(%esp) emms ## Move args passed by reference to stack movl nb131_p_nri(%ebp),%ecx movl (%ecx),%ecx movl %ecx,nb131_nri(%esp) ## zero iteration counters movl $0,%eax movl %eax,nb131_nouter(%esp) movl %eax,nb131_ninner(%esp) movl nb131_p_tabscale(%ebp),%eax movsd (%eax),%xmm3 shufpd $0,%xmm3,%xmm3 movapd %xmm3,nb131_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,nb131_half(%esp) movl %ebx,nb131_half+4(%esp) movsd nb131_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,nb131_half(%esp) movapd %xmm2,nb131_two(%esp) movapd %xmm3,nb131_three(%esp) ## assume we have at least one i particle - start directly movl nb131_iinr(%ebp),%ecx ## ecx = pointer into iinr[] movl (%ecx),%ebx ## ebx =ii movl nb131_charge(%ebp),%edx movsd (%edx,%ebx,8),%xmm3 movsd 8(%edx,%ebx,8),%xmm4 movl nb131_p_facel(%ebp),%esi movsd (%esi),%xmm5 mulsd %xmm5,%xmm3 mulsd %xmm5,%xmm4 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 movapd %xmm3,nb131_iqO(%esp) movapd %xmm4,nb131_iqH(%esp) movl nb131_type(%ebp),%edx movl (%edx,%ebx,4),%ecx shll %ecx movl nb131_p_ntype(%ebp),%edi imull (%edi),%ecx ## ecx = ntia = 2*ntype*type[ii0] movl %ecx,nb131_ntia(%esp)_nb_kernel131_ia32_sse2.nb131_threadloop: movl nb131_count(%ebp),%esi ## pointer to sync counter movl (%esi),%eax_nb_kernel131_ia32_sse2.nb131_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_kernel131_ia32_sse2.nb131_spinlock ## if(nn1>nri) nn1=nri movl nb131_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,nb131_n(%esp) movl %ebx,nb131_nn1(%esp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel131_ia32_sse2.nb131_outerstart jmp _nb_kernel131_ia32_sse2.nb131_end_nb_kernel131_ia32_sse2.nb131_outerstart: ## ebx contains number of outer iterations addl nb131_nouter(%esp),%ebx movl %ebx,nb131_nouter(%esp)_nb_kernel131_ia32_sse2.nb131_outer: movl nb131_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,nb131_is3(%esp) ## store is3 movl nb131_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 nb131_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 nb131_pos(%ebp),%eax ## eax = base of pos[] movl %ebx,nb131_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,nb131_ixO(%esp) movapd %xmm4,nb131_iyO(%esp) movapd %xmm5,nb131_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,nb131_ixH1(%esp) movapd %xmm1,nb131_iyH1(%esp) movapd %xmm2,nb131_izH1(%esp) movapd %xmm3,nb131_ixH2(%esp) movapd %xmm4,nb131_iyH2(%esp) movapd %xmm5,nb131_izH2(%esp) ## clear vctot and i forces xorpd %xmm4,%xmm4 movapd %xmm4,nb131_vctot(%esp) movapd %xmm4,nb131_Vvdwtot(%esp) movapd %xmm4,nb131_fixO(%esp) movapd %xmm4,nb131_fiyO(%esp) movapd %xmm4,nb131_fizO(%esp) movapd %xmm4,nb131_fixH1(%esp) movapd %xmm4,nb131_fiyH1(%esp) movapd %xmm4,nb131_fizH1(%esp) movapd %xmm4,nb131_fixH2(%esp) movapd %xmm4,nb131_fiyH2(%esp) movapd %xmm4,nb131_fizH2(%esp) movl nb131_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 nb131_pos(%ebp),%esi movl nb131_faction(%ebp),%edi movl nb131_jjnr(%ebp),%eax shll $2,%ecx addl %ecx,%eax movl %eax,nb131_innerjjnr(%esp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb131_ninner(%esp),%ecx movl %ecx,nb131_ninner(%esp) addl $0,%edx movl %edx,nb131_innerk(%esp) ## number of innerloop atoms jge _nb_kernel131_ia32_sse2.nb131_unroll_loop jmp _nb_kernel131_ia32_sse2.nb131_checksingle_nb_kernel131_ia32_sse2.nb131_unroll_loop: ## twice unrolled innerloop here movl nb131_innerjjnr(%esp),%edx ## pointer to jjnr[k] movl (%edx),%eax movl 4(%edx),%ebx addl $8,nb131_innerjjnr(%esp) ## advance pointer (unrolled 2) movl nb131_charge(%ebp),%esi ## base of charge[] movlpd (%esi,%eax,8),%xmm3 movhpd (%esi,%ebx,8),%xmm3 movapd %xmm3,%xmm4 mulpd nb131_iqO(%esp),%xmm3 mulpd nb131_iqH(%esp),%xmm4 movd %eax,%mm0 ## use mmx registers as temp storage movd %ebx,%mm1 movapd %xmm3,nb131_qqO(%esp) movapd %xmm4,nb131_qqH(%esp) movl nb131_type(%ebp),%esi movl (%esi,%eax,4),%eax movl (%esi,%ebx,4),%ebx movl nb131_vdwparam(%ebp),%esi shll %eax shll %ebx movl nb131_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,nb131_c6(%esp) movapd %xmm6,nb131_c12(%esp) movl nb131_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 nb131_ixO(%esp),%xmm4 movapd nb131_iyO(%esp),%xmm5 movapd nb131_izO(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb131_dxO(%esp) movapd %xmm5,nb131_dyO(%esp) movapd %xmm6,nb131_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,nb131_rsqO(%esp) ## move ixH1-izH1 to xmm4-xmm6 movapd nb131_ixH1(%esp),%xmm4 movapd nb131_iyH1(%esp),%xmm5 movapd nb131_izH1(%esp),%xmm6 ## calc dr subpd %xmm0,%xmm4 subpd %xmm1,%xmm5 subpd %xmm2,%xmm6 ## store dr movapd %xmm4,nb131_dxH1(%esp) movapd %xmm5,nb131_dyH1(%esp) movapd %xmm6,nb131_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 nb131_ixH2(%esp),%xmm3 movapd nb131_iyH2(%esp),%xmm4 movapd nb131_izH2(%esp),%xmm5 ## calc dr ⌨️ 快捷键说明
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