nb_kernel103_x86_64_sse2.s
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#### $Id: nb_kernel103_x86_64_sse2.s,v 1.4.2.3 2006/09/22 08:40:32 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_kernel103_x86_64_sse2.globl _nb_kernel103_x86_64_sse2nb_kernel103_x86_64_sse2: _nb_kernel103_x86_64_sse2: ## Room for return address and rbp (16 bytes).set nb103_fshift, 16.set nb103_gid, 24.set nb103_pos, 32.set nb103_faction, 40.set nb103_charge, 48.set nb103_p_facel, 56.set nb103_argkrf, 64.set nb103_argcrf, 72.set nb103_Vc, 80.set nb103_type, 88.set nb103_p_ntype, 96.set nb103_vdwparam, 104.set nb103_Vvdw, 112.set nb103_p_tabscale, 120.set nb103_VFtab, 128.set nb103_invsqrta, 136.set nb103_dvda, 144.set nb103_p_gbtabscale, 152.set nb103_GBtab, 160.set nb103_p_nthreads, 168.set nb103_count, 176.set nb103_mtx, 184.set nb103_outeriter, 192.set nb103_inneriter, 200.set nb103_work, 208 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb103_ixH1, 0.set nb103_iyH1, 16.set nb103_izH1, 32.set nb103_ixH2, 48.set nb103_iyH2, 64.set nb103_izH2, 80.set nb103_ixM, 96.set nb103_iyM, 112.set nb103_izM, 128.set nb103_iqM, 144.set nb103_iqH, 160.set nb103_dxH1, 176.set nb103_dyH1, 192.set nb103_dzH1, 208.set nb103_dxH2, 224.set nb103_dyH2, 240.set nb103_dzH2, 256.set nb103_dxM, 272.set nb103_dyM, 288.set nb103_dzM, 304.set nb103_qqM, 320.set nb103_qqH, 336.set nb103_vctot, 352.set nb103_fixM, 368.set nb103_fiyM, 384.set nb103_fizM, 400.set nb103_fixH1, 416.set nb103_fiyH1, 432.set nb103_fizH1, 448.set nb103_fixH2, 464.set nb103_fiyH2, 480.set nb103_fizH2, 496.set nb103_fjx, 512.set nb103_fjy, 528.set nb103_fjz, 544.set nb103_half, 560.set nb103_three, 576.set nb103_is3, 592.set nb103_ii3, 596.set nb103_nri, 600.set nb103_innerjjnr, 608.set nb103_iinr, 616.set nb103_jindex, 624.set nb103_jjnr, 632.set nb103_shift, 640.set nb103_shiftvec, 648.set nb103_facel, 656.set nb103_innerk, 664.set nb103_n, 668.set nb103_nn1, 672.set nb103_nouter, 676.set nb103_ninner, 680 push %rbp movq %rsp,%rbp push %rbx emms push %r12 push %r13 push %r14 push %r15 subq $696,%rsp ## local variable stack space (n*16+8) ## zero 32-bit iteration counters movl $0,%eax movl %eax,nb103_nouter(%rsp) movl %eax,nb103_ninner(%rsp) movl (%rdi),%edi movl %edi,nb103_nri(%rsp) movq %rsi,nb103_iinr(%rsp) movq %rdx,nb103_jindex(%rsp) movq %rcx,nb103_jjnr(%rsp) movq %r8,nb103_shift(%rsp) movq %r9,nb103_shiftvec(%rsp) movq nb103_p_facel(%rbp),%rsi movsd (%rsi),%xmm0 movsd %xmm0,nb103_facel(%rsp) ## create constant floating-point factors on stack movl $0x00000000,%eax ## lower half of double half IEEE (hex) movl $0x3fe00000,%ebx movl %eax,nb103_half(%rsp) movl %ebx,nb103_half+4(%rsp) movsd nb103_half(%rsp),%xmm1 shufpd $0,%xmm1,%xmm1 ## splat to all elements movapd %xmm1,%xmm3 addpd %xmm3,%xmm3 ## one movapd %xmm3,%xmm2 addpd %xmm2,%xmm2 ## two addpd %xmm2,%xmm3 ## three movapd %xmm1,nb103_half(%rsp) movapd %xmm3,nb103_three(%rsp) ## assume we have at least one i particle - start directly movq nb103_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx),%ebx ## ebx =ii movq nb103_charge(%rbp),%rdx movsd 8(%rdx,%rbx,8),%xmm3 movsd 24(%rdx,%rbx,8),%xmm4 movq nb103_p_facel(%rbp),%rsi movsd (%rsi),%xmm0 movsd nb103_facel(%rsp),%xmm5 mulsd %xmm5,%xmm3 mulsd %xmm5,%xmm4 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 movapd %xmm3,nb103_iqH(%rsp) movapd %xmm4,nb103_iqM(%rsp)_nb_kernel103_x86_64_sse2.nb103_threadloop: movq nb103_count(%rbp),%rsi ## pointer to sync counter movl (%rsi),%eax_nb_kernel103_x86_64_sse2.nb103_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_kernel103_x86_64_sse2.nb103_spinlock ## if(nn1>nri) nn1=nri movl nb103_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,nb103_n(%rsp) movl %ebx,nb103_nn1(%rsp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel103_x86_64_sse2.nb103_outerstart jmp _nb_kernel103_x86_64_sse2.nb103_end_nb_kernel103_x86_64_sse2.nb103_outerstart: ## ebx contains number of outer iterations addl nb103_nouter(%rsp),%ebx movl %ebx,nb103_nouter(%rsp)_nb_kernel103_x86_64_sse2.nb103_outer: movq nb103_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,nb103_is3(%rsp) ## store is3 movq nb103_shiftvec(%rsp),%rax ## rax = base of shiftvec[] movsd (%rax,%rbx,8),%xmm0 movsd 8(%rax,%rbx,8),%xmm1 movsd 16(%rax,%rbx,8),%xmm2 movq nb103_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx,%rsi,4),%ebx ## ebx =ii movapd %xmm0,%xmm3 movapd %xmm1,%xmm4 movapd %xmm2,%xmm5 lea (%rbx,%rbx,2),%rbx ## rbx = 3*ii=ii3 movq nb103_pos(%rbp),%rax ## rax = base of pos[] movl %ebx,nb103_ii3(%rsp) addsd 24(%rax,%rbx,8),%xmm3 addsd 32(%rax,%rbx,8),%xmm4 addsd 40(%rax,%rbx,8),%xmm5 shufpd $0,%xmm3,%xmm3 shufpd $0,%xmm4,%xmm4 shufpd $0,%xmm5,%xmm5 movapd %xmm3,nb103_ixH1(%rsp) movapd %xmm4,nb103_iyH1(%rsp) movapd %xmm5,nb103_izH1(%rsp) movsd %xmm0,%xmm3 movsd %xmm1,%xmm4 movsd %xmm2,%xmm5 addsd 48(%rax,%rbx,8),%xmm0 addsd 56(%rax,%rbx,8),%xmm1 addsd 64(%rax,%rbx,8),%xmm2 addsd 72(%rax,%rbx,8),%xmm3 addsd 80(%rax,%rbx,8),%xmm4 addsd 88(%rax,%rbx,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,nb103_ixH2(%rsp) movapd %xmm1,nb103_iyH2(%rsp) movapd %xmm2,nb103_izH2(%rsp) movapd %xmm3,nb103_ixM(%rsp) movapd %xmm4,nb103_iyM(%rsp) movapd %xmm5,nb103_izM(%rsp) ## clear vctot and i forces xorpd %xmm4,%xmm4 movapd %xmm4,nb103_vctot(%rsp) movapd %xmm4,nb103_fixM(%rsp) movapd %xmm4,nb103_fiyM(%rsp) movapd %xmm4,nb103_fizM(%rsp) movapd %xmm4,nb103_fixH1(%rsp) movapd %xmm4,nb103_fiyH1(%rsp) movapd %xmm4,nb103_fizH1(%rsp) movapd %xmm4,nb103_fixH2(%rsp) movapd %xmm4,nb103_fiyH2(%rsp) movapd %xmm4,nb103_fizH2(%rsp) movq nb103_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 nb103_pos(%rbp),%rsi movq nb103_faction(%rbp),%rdi movq nb103_jjnr(%rsp),%rax shll $2,%ecx addq %rcx,%rax movq %rax,nb103_innerjjnr(%rsp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb103_ninner(%rsp),%ecx movl %ecx,nb103_ninner(%rsp) addl $0,%edx movl %edx,nb103_innerk(%rsp) ## number of innerloop atoms jge _nb_kernel103_x86_64_sse2.nb103_unroll_loop jmp _nb_kernel103_x86_64_sse2.nb103_checksingle_nb_kernel103_x86_64_sse2.nb103_unroll_loop: ## twice unrolled innerloop here movq nb103_innerjjnr(%rsp),%rdx ## pointer to jjnr[k] movl (%rdx),%eax movl 4(%rdx),%ebx addq $8,nb103_innerjjnr(%rsp) ## advance pointer (unrolled 2) movq nb103_charge(%rbp),%rsi ## base of charge[] movlpd (%rsi,%rax,8),%xmm6 ## jq A movhpd (%rsi,%rbx,8),%xmm6 ## jq B movapd nb103_iqM(%rsp),%xmm3 movapd nb103_iqH(%rsp),%xmm4 mulpd %xmm6,%xmm3 ## qqM mulpd %xmm6,%xmm4 ## qqH movapd %xmm3,nb103_qqM(%rsp) movapd %xmm4,nb103_qqH(%rsp) movq nb103_pos(%rbp),%rsi ## base of pos[] lea (%rax,%rax,2),%rax ## replace jnr with j3 lea (%rbx,%rbx,2),%rbx ## move j coordinates to local temp variables movlpd (%rsi,%rax,8),%xmm0 movlpd 8(%rsi,%rax,8),%xmm1 movlpd 16(%rsi,%rax,8),%xmm2 movhpd (%rsi,%rbx,8),%xmm0 movhpd 8(%rsi,%rbx,8),%xmm1 movhpd 16(%rsi,%rbx,8),%xmm2 ## xmm0 = jx ## xmm1 = jy ## xmm2 = jz movapd %xmm0,%xmm3 movapd %xmm1,%xmm4 movapd %xmm2,%xmm5 movapd %xmm0,%xmm6 movapd %xmm1,%xmm7 movapd %xmm2,%xmm8 subpd nb103_ixH1(%rsp),%xmm0 subpd nb103_iyH1(%rsp),%xmm1 subpd nb103_izH1(%rsp),%xmm2 subpd nb103_ixH2(%rsp),%xmm3 subpd nb103_iyH2(%rsp),%xmm4 subpd nb103_izH2(%rsp),%xmm5 subpd nb103_ixM(%rsp),%xmm6 subpd nb103_iyM(%rsp),%xmm7 subpd nb103_izM(%rsp),%xmm8 movapd %xmm0,nb103_dxH1(%rsp) movapd %xmm1,nb103_dyH1(%rsp) movapd %xmm2,nb103_dzH1(%rsp) mulpd %xmm0,%xmm0 mulpd %xmm1,%xmm1 mulpd %xmm2,%xmm2 movapd %xmm3,nb103_dxH2(%rsp) movapd %xmm4,nb103_dyH2(%rsp) movapd %xmm5,nb103_dzH2(%rsp) mulpd %xmm3,%xmm3 mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 movapd %xmm6,nb103_dxM(%rsp) movapd %xmm7,nb103_dyM(%rsp) movapd %xmm8,nb103_dzM(%rsp) mulpd %xmm6,%xmm6 mulpd %xmm7,%xmm7 mulpd %xmm8,%xmm8 addpd %xmm1,%xmm0 addpd %xmm2,%xmm0 addpd %xmm4,%xmm3 addpd %xmm5,%xmm3 addpd %xmm7,%xmm6 addpd %xmm8,%xmm6 ## start doing invsqrt for j atoms cvtpd2ps %xmm0,%xmm1 cvtpd2ps %xmm3,%xmm4 cvtpd2ps %xmm6,%xmm7 rsqrtps %xmm1,%xmm1 rsqrtps %xmm4,%xmm4 rsqrtps %xmm7,%xmm7 cvtps2pd %xmm1,%xmm1 cvtps2pd %xmm4,%xmm4 cvtps2pd %xmm7,%xmm7 movapd %xmm1,%xmm2 movapd %xmm4,%xmm5 movapd %xmm7,%xmm8 mulpd %xmm1,%xmm1 ## lu*lu mulpd %xmm4,%xmm4 ## lu*lu mulpd %xmm7,%xmm7 ## lu*lu movapd nb103_three(%rsp),%xmm9 movapd %xmm9,%xmm10 movapd %xmm9,%xmm11 mulpd %xmm0,%xmm1 ## rsq*lu*lu mulpd %xmm3,%xmm4 ## rsq*lu*lu mulpd %xmm6,%xmm7 ## rsq*lu*lu subpd %xmm1,%xmm9 subpd %xmm4,%xmm10⌨️ 快捷键说明
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