nb_kernel301_x86_64_sse.s
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#### $Id: nb_kernel301_x86_64_sse.s,v 1.4.2.3 2006/09/22 08:32:50 lindahl 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_kernel301_x86_64_sse.globl _nb_kernel301_x86_64_ssenb_kernel301_x86_64_sse: _nb_kernel301_x86_64_sse: ## Room for return address and rbp (16 bytes).set nb301_fshift, 16.set nb301_gid, 24.set nb301_pos, 32.set nb301_faction, 40.set nb301_charge, 48.set nb301_p_facel, 56.set nb301_argkrf, 64.set nb301_argcrf, 72.set nb301_Vc, 80.set nb301_type, 88.set nb301_p_ntype, 96.set nb301_vdwparam, 104.set nb301_Vvdw, 112.set nb301_p_tabscale, 120.set nb301_VFtab, 128.set nb301_invsqrta, 136.set nb301_dvda, 144.set nb301_p_gbtabscale, 152.set nb301_GBtab, 160.set nb301_p_nthreads, 168.set nb301_count, 176.set nb301_mtx, 184.set nb301_outeriter, 192.set nb301_inneriter, 200.set nb301_work, 208 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse use .set nb301_ixO, 0.set nb301_iyO, 16.set nb301_izO, 32.set nb301_ixH1, 48.set nb301_iyH1, 64.set nb301_izH1, 80.set nb301_ixH2, 96.set nb301_iyH2, 112.set nb301_izH2, 128.set nb301_iqO, 144.set nb301_iqH, 160.set nb301_dxO, 176.set nb301_dyO, 192.set nb301_dzO, 208.set nb301_dxH1, 224.set nb301_dyH1, 240.set nb301_dzH1, 256.set nb301_dxH2, 272.set nb301_dyH2, 288.set nb301_dzH2, 304.set nb301_qqO, 320.set nb301_qqH, 336.set nb301_rinvO, 352.set nb301_rinvH1, 368.set nb301_rinvH2, 384.set nb301_rO, 400.set nb301_rH1, 416.set nb301_rH2, 432.set nb301_tsc, 448.set nb301_two, 464.set nb301_vctot, 480.set nb301_fixO, 496.set nb301_fiyO, 512.set nb301_fizO, 528.set nb301_fixH1, 544.set nb301_fiyH1, 560.set nb301_fizH1, 576.set nb301_fixH2, 592.set nb301_fiyH2, 608.set nb301_fizH2, 624.set nb301_epsO, 640.set nb301_epsH1, 656.set nb301_epsH2, 672.set nb301_half, 688.set nb301_three, 704.set nb301_is3, 720.set nb301_ii3, 724.set nb301_nri, 728.set nb301_iinr, 736.set nb301_jindex, 744.set nb301_jjnr, 752.set nb301_shift, 760.set nb301_shiftvec, 768.set nb301_facel, 776.set nb301_innerjjnr, 784.set nb301_innerk, 792.set nb301_n, 796.set nb301_nn1, 800.set nb301_nouter, 804.set nb301_ninner, 808 push %rbp movq %rsp,%rbp push %rbx emms push %r12 push %r13 push %r14 push %r15 subq $824,%rsp ## local variable stack space (n*16+8) ## zero 32-bit iteration counters movl $0,%eax movl %eax,nb301_nouter(%rsp) movl %eax,nb301_ninner(%rsp) movl (%rdi),%edi movl %edi,nb301_nri(%rsp) movq %rsi,nb301_iinr(%rsp) movq %rdx,nb301_jindex(%rsp) movq %rcx,nb301_jjnr(%rsp) movq %r8,nb301_shift(%rsp) movq %r9,nb301_shiftvec(%rsp) movq nb301_p_facel(%rbp),%rsi movss (%rsi),%xmm0 movss %xmm0,nb301_facel(%rsp) movq nb301_p_tabscale(%rbp),%rax movss (%rax),%xmm3 shufps $0,%xmm3,%xmm3 movaps %xmm3,nb301_tsc(%rsp) ## create constant floating-point factors on stack movl $0x3f000000,%eax ## half in IEEE (hex) movl %eax,nb301_half(%rsp) movss nb301_half(%rsp),%xmm1 shufps $0,%xmm1,%xmm1 ## splat to all elements movaps %xmm1,%xmm2 addps %xmm2,%xmm2 ## one movaps %xmm2,%xmm3 addps %xmm2,%xmm2 ## two addps %xmm2,%xmm3 ## three movaps %xmm1,nb301_half(%rsp) movaps %xmm2,nb301_two(%rsp) movaps %xmm3,nb301_three(%rsp) ## assume we have at least one i particle - start directly movq nb301_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx),%ebx ## ebx =ii movq nb301_charge(%rbp),%rdx movss (%rdx,%rbx,4),%xmm3 movss 4(%rdx,%rbx,4),%xmm4 movq nb301_p_facel(%rbp),%rsi movss (%rsi),%xmm0 movss nb301_facel(%rsp),%xmm5 mulss %xmm5,%xmm3 mulss %xmm5,%xmm4 shufps $0,%xmm3,%xmm3 shufps $0,%xmm4,%xmm4 movaps %xmm3,nb301_iqO(%rsp) movaps %xmm4,nb301_iqH(%rsp)_nb_kernel301_x86_64_sse.nb301_threadloop: movq nb301_count(%rbp),%rsi ## pointer to sync counter movl (%rsi),%eax_nb_kernel301_x86_64_sse.nb301_spinlock: movl %eax,%ebx ## ebx=*count=nn0 addl $1,%ebx ## ebx=nn1=nn0+10 lock cmpxchgl %ebx,(%rsi) ## write nn1 to *counter, ## if it hasnt changed. ## or reread *counter to eax. pause ## -> better p4 performance jnz _nb_kernel301_x86_64_sse.nb301_spinlock ## if(nn1>nri) nn1=nri movl nb301_nri(%rsp),%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,nb301_n(%rsp) movl %ebx,nb301_nn1(%rsp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel301_x86_64_sse.nb301_outerstart jmp _nb_kernel301_x86_64_sse.nb301_end_nb_kernel301_x86_64_sse.nb301_outerstart: ## ebx contains number of outer iterations addl nb301_nouter(%rsp),%ebx movl %ebx,nb301_nouter(%rsp)_nb_kernel301_x86_64_sse.nb301_outer: movq nb301_shift(%rsp),%rax ## rax = pointer into shift[] movl (%rax,%rsi,4),%ebx ## rbx=shift[n] lea (%rbx,%rbx,2),%rbx ## rbx=3*is movl %ebx,nb301_is3(%rsp) ## store is3 movq nb301_shiftvec(%rsp),%rax ## rax = base of shiftvec[] movss (%rax,%rbx,4),%xmm0 movss 4(%rax,%rbx,4),%xmm1 movss 8(%rax,%rbx,4),%xmm2 movq nb301_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx,%rsi,4),%ebx ## ebx =ii movaps %xmm0,%xmm3 movaps %xmm1,%xmm4 movaps %xmm2,%xmm5 lea (%rbx,%rbx,2),%rbx ## rbx = 3*ii=ii3 movq nb301_pos(%rbp),%rax ## rax = base of pos[] movl %ebx,nb301_ii3(%rsp) addss (%rax,%rbx,4),%xmm3 addss 4(%rax,%rbx,4),%xmm4 addss 8(%rax,%rbx,4),%xmm5 shufps $0,%xmm3,%xmm3 shufps $0,%xmm4,%xmm4 shufps $0,%xmm5,%xmm5 movaps %xmm3,nb301_ixO(%rsp) movaps %xmm4,nb301_iyO(%rsp) movaps %xmm5,nb301_izO(%rsp) movss %xmm0,%xmm3 movss %xmm1,%xmm4 movss %xmm2,%xmm5 addss 12(%rax,%rbx,4),%xmm0 addss 16(%rax,%rbx,4),%xmm1 addss 20(%rax,%rbx,4),%xmm2 addss 24(%rax,%rbx,4),%xmm3 addss 28(%rax,%rbx,4),%xmm4 addss 32(%rax,%rbx,4),%xmm5 shufps $0,%xmm0,%xmm0 shufps $0,%xmm1,%xmm1 shufps $0,%xmm2,%xmm2 shufps $0,%xmm3,%xmm3 shufps $0,%xmm4,%xmm4 shufps $0,%xmm5,%xmm5 movaps %xmm0,nb301_ixH1(%rsp) movaps %xmm1,nb301_iyH1(%rsp) movaps %xmm2,nb301_izH1(%rsp) movaps %xmm3,nb301_ixH2(%rsp) movaps %xmm4,nb301_iyH2(%rsp) movaps %xmm5,nb301_izH2(%rsp) ## clear vctot and i forces xorps %xmm4,%xmm4 movaps %xmm4,nb301_vctot(%rsp) movaps %xmm4,nb301_fixO(%rsp) movaps %xmm4,nb301_fiyO(%rsp) movaps %xmm4,nb301_fizO(%rsp) movaps %xmm4,nb301_fixH1(%rsp) movaps %xmm4,nb301_fiyH1(%rsp) movaps %xmm4,nb301_fizH1(%rsp) movaps %xmm4,nb301_fixH2(%rsp) movaps %xmm4,nb301_fiyH2(%rsp) movaps %xmm4,nb301_fizH2(%rsp) movq nb301_jindex(%rsp),%rax movl (%rax,%rsi,4),%ecx ## jindex[n] movl 4(%rax,%rsi,4),%edx ## jindex[n+1] subl %ecx,%edx ## number of innerloop atoms movq nb301_pos(%rbp),%rsi movq nb301_faction(%rbp),%rdi movq nb301_jjnr(%rsp),%rax shll $2,%ecx addq %rcx,%rax movq %rax,nb301_innerjjnr(%rsp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $4,%edx addl nb301_ninner(%rsp),%ecx movl %ecx,nb301_ninner(%rsp) addl $0,%edx movl %edx,nb301_innerk(%rsp) ## number of innerloop atoms jge _nb_kernel301_x86_64_sse.nb301_unroll_loop jmp _nb_kernel301_x86_64_sse.nb301_odd_inner_nb_kernel301_x86_64_sse.nb301_unroll_loop: ## quad-unroll innerloop here movq nb301_innerjjnr(%rsp),%rdx ## pointer to jjnr[k] movl (%rdx),%eax movl 4(%rdx),%ebx movl 8(%rdx),%ecx movl 12(%rdx),%edx ## eax-edx=jnr1-4 addq $16,nb301_innerjjnr(%rsp) ## advance pointer (unrolled 4) movq nb301_charge(%rbp),%rsi ## base of charge[] movss (%rsi,%rax,4),%xmm3 movss (%rsi,%rcx,4),%xmm4 movss (%rsi,%rbx,4),%xmm6 movss (%rsi,%rdx,4),%xmm7 shufps $0,%xmm6,%xmm3 shufps $0,%xmm7,%xmm4 shufps $136,%xmm4,%xmm3 ## 10001000 ;# all charges in xmm3 movaps %xmm3,%xmm4 ## and in xmm4 mulps nb301_iqO(%rsp),%xmm3 mulps nb301_iqH(%rsp),%xmm4 movaps %xmm3,nb301_qqO(%rsp) movaps %xmm4,nb301_qqH(%rsp) movq nb301_pos(%rbp),%rsi ## base of pos[] lea (%rax,%rax,2),%rax ## replace jnr with j3 lea (%rbx,%rbx,2),%rbx lea (%rcx,%rcx,2),%rcx ## replace jnr with j3 lea (%rdx,%rdx,2),%rdx ## move four coordinates to xmm0-xmm2 movlps (%rsi,%rax,4),%xmm4 movlps (%rsi,%rcx,4),%xmm5 movss 8(%rsi,%rax,4),%xmm2 movss 8(%rsi,%rcx,4),%xmm6 movhps (%rsi,%rbx,4),%xmm4 movhps (%rsi,%rdx,4),%xmm5 movss 8(%rsi,%rbx,4),%xmm0 movss 8(%rsi,%rdx,4),%xmm1 shufps $0,%xmm0,%xmm2 shufps $0,%xmm1,%xmm6 movaps %xmm4,%xmm0 movaps %xmm4,%xmm1 shufps $136,%xmm6,%xmm2 ## 10001000 shufps $136,%xmm5,%xmm0 ## 10001000 shufps $221,%xmm5,%xmm1 ## 11011101 ## xmm0 = jx ## xmm1 = jy ## xmm2 = jz movaps %xmm0,%xmm3 movaps %xmm1,%xmm4 movaps %xmm2,%xmm5 movaps %xmm0,%xmm6 movaps %xmm1,%xmm7 movaps %xmm2,%xmm8 subps nb301_ixO(%rsp),%xmm0 subps nb301_iyO(%rsp),%xmm1 subps nb301_izO(%rsp),%xmm2 subps nb301_ixH1(%rsp),%xmm3 subps nb301_iyH1(%rsp),%xmm4 subps nb301_izH1(%rsp),%xmm5 subps nb301_ixH2(%rsp),%xmm6 subps nb301_iyH2(%rsp),%xmm7 subps nb301_izH2(%rsp),%xmm8 movd %eax,%mm0 ## use mmx registers as temp storage movd %ebx,%mm1 movd %ecx,%mm2 movd %edx,%mm3 movaps %xmm0,nb301_dxO(%rsp) movaps %xmm1,nb301_dyO(%rsp) movaps %xmm2,nb301_dzO(%rsp) mulps %xmm0,%xmm0 mulps %xmm1,%xmm1 mulps %xmm2,%xmm2 movaps %xmm3,nb301_dxH1(%rsp) movaps %xmm4,nb301_dyH1(%rsp) movaps %xmm5,nb301_dzH1(%rsp) mulps %xmm3,%xmm3 mulps %xmm4,%xmm4 mulps %xmm5,%xmm5 movaps %xmm6,nb301_dxH2(%rsp) movaps %xmm7,nb301_dyH2(%rsp) movaps %xmm8,nb301_dzH2(%rsp) mulps %xmm6,%xmm6 mulps %xmm7,%xmm7 mulps %xmm8,%xmm8 addps %xmm1,%xmm0 addps %xmm2,%xmm0 addps %xmm4,%xmm3 addps %xmm5,%xmm3 addps %xmm7,%xmm6 addps %xmm8,%xmm6 ## start doing invsqrt for j atoms rsqrtps %xmm0,%xmm1 rsqrtps %xmm3,%xmm4 rsqrtps %xmm6,%xmm7 movaps %xmm1,%xmm2 movaps %xmm4,%xmm5 movaps %xmm7,%xmm8 mulps %xmm1,%xmm1 ## lu*lu mulps %xmm4,%xmm4 ## lu*lu mulps %xmm7,%xmm7 ## lu*lu movaps nb301_three(%rsp),%xmm9 movaps %xmm9,%xmm10 movaps %xmm9,%xmm11 mulps %xmm0,%xmm1 ## rsq*lu*lu mulps %xmm3,%xmm4 ## rsq*lu*lu mulps %xmm6,%xmm7 ## rsq*lu*lu subps %xmm1,%xmm9 subps %xmm4,%xmm10 subps %xmm7,%xmm11 ## 3-rsq*lu*lu mulps %xmm2,%xmm9 mulps %xmm5,%xmm10 mulps %xmm8,%xmm11 ## lu*(3-rsq*lu*lu) movaps nb301_half(%rsp),%xmm4 mulps %xmm4,%xmm9 ## rinvO mulps %xmm4,%xmm10 ## rinvH1 mulps %xmm4,%xmm11 ## rinvH2 movaps %xmm9,nb301_rinvO(%rsp) movaps %xmm10,nb301_rinvH1(%rsp) movaps %xmm11,nb301_rinvH2(%rsp) ## interactions ## rsq in xmm0,xmm3,xmm6 ## rinv in xmm9, xmm10, xmm11 movaps nb301_tsc(%rsp),%xmm1 mulps %xmm9,%xmm0 ## r mulps %xmm10,%xmm3 mulps %xmm11,%xmm6 mulps %xmm1,%xmm0 ## rtab mulps %xmm1,%xmm3 mulps %xmm1,%xmm6 ## truncate and convert to integers cvttps2dq %xmm0,%xmm1 cvttps2dq %xmm3,%xmm4 cvttps2dq %xmm6,%xmm7 ## convert back to float cvtdq2ps %xmm1,%xmm2 cvtdq2ps %xmm4,%xmm5 cvtdq2ps %xmm7,%xmm8 ## multiply by 4 pslld $2,%xmm1 pslld $2,%xmm4 pslld $2,%xmm7 ## move to integer registers movhlps %xmm1,%xmm13 movhlps %xmm4,%xmm14 movhlps %xmm7,%xmm15 movd %xmm1,%eax⌨️ 快捷键说明
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