nb_kernel410_x86_64_sse2.s
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#### $Id: nb_kernel410_x86_64_sse2.s,v 1.4.2.3 2006/09/22 08:40:37 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_kernel410_x86_64_sse2.globl _nb_kernel410_x86_64_sse2nb_kernel410_x86_64_sse2: _nb_kernel410_x86_64_sse2: ## Room for return address and rbp (16 bytes).set nb410_fshift, 16.set nb410_gid, 24.set nb410_pos, 32.set nb410_faction, 40.set nb410_charge, 48.set nb410_p_facel, 56.set nb410_argkrf, 64.set nb410_argcrf, 72.set nb410_Vc, 80.set nb410_type, 88.set nb410_p_ntype, 96.set nb410_vdwparam, 104.set nb410_Vvdw, 112.set nb410_p_tabscale, 120.set nb410_VFtab, 128.set nb410_invsqrta, 136.set nb410_dvda, 144.set nb410_p_gbtabscale, 152.set nb410_GBtab, 160.set nb410_p_nthreads, 168.set nb410_count, 176.set nb410_mtx, 184.set nb410_outeriter, 192.set nb410_inneriter, 200.set nb410_work, 208 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse2 use .set nb410_ix, 0.set nb410_iy, 16.set nb410_iz, 32.set nb410_iq, 48.set nb410_dx, 64.set nb410_dy, 80.set nb410_dz, 96.set nb410_two, 112.set nb410_six, 128.set nb410_twelve, 144.set nb410_gbtsc, 160.set nb410_qq, 176.set nb410_c6, 192.set nb410_c12, 208.set nb410_fscal, 224.set nb410_vctot, 240.set nb410_Vvdwtot, 256.set nb410_fix, 272.set nb410_fiy, 288.set nb410_fiz, 304.set nb410_half, 320.set nb410_three, 336.set nb410_r, 352.set nb410_isai, 368.set nb410_isaprod, 384.set nb410_dvdasum, 400.set nb410_gbscale, 416.set nb410_nri, 432.set nb410_iinr, 440.set nb410_jindex, 448.set nb410_jjnr, 456.set nb410_shift, 464.set nb410_shiftvec, 472.set nb410_facel, 480.set nb410_innerjjnr, 488.set nb410_ii, 496.set nb410_is3, 500.set nb410_ii3, 504.set nb410_ntia, 508.set nb410_innerk, 512.set nb410_n, 516.set nb410_nn1, 520.set nb410_ntype, 524.set nb410_nouter, 528.set nb410_ninner, 532 push %rbp movq %rsp,%rbp push %rbx emms push %r12 push %r13 push %r14 push %r15 subq $552,%rsp ## local variable stack space (n*16+8) ## zero 32-bit iteration counters movl $0,%eax movl %eax,nb410_nouter(%rsp) movl %eax,nb410_ninner(%rsp) movl (%rdi),%edi movl %edi,nb410_nri(%rsp) movq %rsi,nb410_iinr(%rsp) movq %rdx,nb410_jindex(%rsp) movq %rcx,nb410_jjnr(%rsp) movq %r8,nb410_shift(%rsp) movq %r9,nb410_shiftvec(%rsp) movq nb410_p_ntype(%rbp),%rdi movl (%rdi),%edi movl %edi,nb410_ntype(%rsp) movq nb410_p_facel(%rbp),%rsi movsd (%rsi),%xmm0 movsd %xmm0,nb410_facel(%rsp) movq nb410_p_gbtabscale(%rbp),%rbx movsd (%rbx),%xmm4 shufpd $0,%xmm4,%xmm4 movapd %xmm4,nb410_gbtsc(%rsp) ## create constant floating-point factors on stack movl $0x00000000,%eax ## lower half of double half IEEE (hex) movl $0x3fe00000,%ebx movl %eax,nb410_half(%rsp) movl %ebx,nb410_half+4(%rsp) movsd nb410_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 %xmm3,%xmm4 addpd %xmm4,%xmm4 ## six movapd %xmm4,%xmm5 addpd %xmm5,%xmm5 ## twelve movapd %xmm1,nb410_half(%rsp) movapd %xmm2,nb410_two(%rsp) movapd %xmm3,nb410_three(%rsp) movapd %xmm4,nb410_six(%rsp) movapd %xmm5,nb410_twelve(%rsp)_nb_kernel410_x86_64_sse2.nb410_threadloop: movq nb410_count(%rbp),%rsi ## pointer to sync counter movl (%rsi),%eax_nb_kernel410_x86_64_sse2.nb410_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_kernel410_x86_64_sse2.nb410_spinlock ## if(nn1>nri) nn1=nri movl nb410_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,nb410_n(%rsp) movl %ebx,nb410_nn1(%rsp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel410_x86_64_sse2.nb410_outerstart jmp _nb_kernel410_x86_64_sse2.nb410_end_nb_kernel410_x86_64_sse2.nb410_outerstart: ## ebx contains number of outer iterations addl nb410_nouter(%rsp),%ebx movl %ebx,nb410_nouter(%rsp)_nb_kernel410_x86_64_sse2.nb410_outer: movq nb410_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,nb410_is3(%rsp) ## store is3 movq nb410_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 nb410_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx,%rsi,4),%ebx ## ebx =ii movl %ebx,nb410_ii(%rsp) movq nb410_charge(%rbp),%rdx movsd (%rdx,%rbx,8),%xmm3 mulsd nb410_facel(%rsp),%xmm3 shufpd $0,%xmm3,%xmm3 movq nb410_invsqrta(%rbp),%rdx ## load invsqrta[ii] movsd (%rdx,%rbx,8),%xmm4 shufpd $0,%xmm4,%xmm4 movq nb410_type(%rbp),%rdx movl (%rdx,%rbx,4),%edx imull nb410_ntype(%rsp),%edx shll %edx movl %edx,nb410_ntia(%rsp) lea (%rbx,%rbx,2),%rbx ## rbx = 3*ii=ii3 movq nb410_pos(%rbp),%rax ## rax = base of pos[] addsd (%rax,%rbx,8),%xmm0 addsd 8(%rax,%rbx,8),%xmm1 addsd 16(%rax,%rbx,8),%xmm2 movapd %xmm3,nb410_iq(%rsp) movapd %xmm4,nb410_isai(%rsp) shufpd $0,%xmm0,%xmm0 shufpd $0,%xmm1,%xmm1 shufpd $0,%xmm2,%xmm2 movapd %xmm0,nb410_ix(%rsp) movapd %xmm1,nb410_iy(%rsp) movapd %xmm2,nb410_iz(%rsp) movl %ebx,nb410_ii3(%rsp) ## clear vctot and i forces xorpd %xmm13,%xmm13 movapd %xmm13,%xmm12 movapd %xmm13,nb410_Vvdwtot(%rsp) movapd %xmm13,nb410_dvdasum(%rsp) movapd %xmm13,%xmm14 movapd %xmm13,%xmm15 movq nb410_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 nb410_pos(%rbp),%rsi movq nb410_faction(%rbp),%rdi movq nb410_jjnr(%rsp),%rax shll $2,%ecx addq %rcx,%rax movq %rax,nb410_innerjjnr(%rsp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $2,%edx addl nb410_ninner(%rsp),%ecx movl %ecx,nb410_ninner(%rsp) addl $0,%edx movl %edx,nb410_innerk(%rsp) ## number of innerloop atoms jge _nb_kernel410_x86_64_sse2.nb410_unroll_loop jmp _nb_kernel410_x86_64_sse2.nb410_checksingle_nb_kernel410_x86_64_sse2.nb410_unroll_loop: ## twice unrolled innerloop here movq nb410_innerjjnr(%rsp),%rdx ## pointer to jjnr[k] movl (%rdx),%r14d movl 4(%rdx),%r15d addq $8,nb410_innerjjnr(%rsp) ## advance pointer (unrolled 2) movq nb410_pos(%rbp),%rsi ## base of pos[] lea (%r14,%r14,2),%r10 ## replace jnr with j3 lea (%r15,%r15,2),%r11 ## move two coordinates to xmm4-xmm6 movlpd (%rsi,%r10,8),%xmm4 movlpd 8(%rsi,%r10,8),%xmm5 movlpd 16(%rsi,%r10,8),%xmm6 movhpd (%rsi,%r11,8),%xmm4 movhpd 8(%rsi,%r11,8),%xmm5 movhpd 16(%rsi,%r11,8),%xmm6 ## calc dr subpd nb410_ix(%rsp),%xmm4 subpd nb410_iy(%rsp),%xmm5 subpd nb410_iz(%rsp),%xmm6 ## store dr movapd %xmm4,nb410_dx(%rsp) movapd %xmm5,nb410_dy(%rsp) movapd %xmm6,nb410_dz(%rsp) ## load isaj movq nb410_invsqrta(%rbp),%rsi ## square it mulpd %xmm4,%xmm4 mulpd %xmm5,%xmm5 mulpd %xmm6,%xmm6 addpd %xmm5,%xmm4 addpd %xmm6,%xmm4 ## rsq in xmm4 movlpd (%rsi,%r14,8),%xmm3 movhpd (%rsi,%r15,8),%xmm3 movq nb410_type(%rbp),%rdi movl (%rdi,%r14,4),%r8d movl (%rdi,%r15,4),%r9d cvtpd2ps %xmm4,%xmm5 rsqrtps %xmm5,%xmm5 cvtps2pd %xmm5,%xmm2 ## lu in low xmm2 mulpd nb410_isai(%rsp),%xmm3 movapd %xmm3,nb410_isaprod(%rsp) ## lookup seed in xmm2 movapd %xmm2,%xmm5 ## copy of lu mulpd %xmm2,%xmm2 ## lu*lu movapd nb410_three(%rsp),%xmm1 mulpd %xmm4,%xmm2 ## rsq*lu*lu movapd nb410_half(%rsp),%xmm0 subpd %xmm2,%xmm1 ## 30-rsq*lu*lu mulpd %xmm5,%xmm1 mulpd %xmm0,%xmm1 ## xmm0=iter1 of rinv (new lu) movapd %xmm3,%xmm6 mulpd nb410_gbtsc(%rsp),%xmm6 movapd %xmm6,nb410_gbscale(%rsp) movapd %xmm1,%xmm5 ## copy of lu mulpd %xmm1,%xmm1 ## lu*lu movapd nb410_three(%rsp),%xmm2 mulpd %xmm4,%xmm1 ## rsq*lu*lu movapd nb410_half(%rsp),%xmm0 subpd %xmm1,%xmm2 ## 30-rsq*lu*lu mulpd %xmm5,%xmm2 mulpd %xmm2,%xmm0 ## xmm0=rinv mulpd nb410_iq(%rsp),%xmm3 movq nb410_charge(%rbp),%rsi ## base of charge[] movlpd (%rsi,%r14,8),%xmm6 movhpd (%rsi,%r15,8),%xmm6 mulpd %xmm3,%xmm6 movapd %xmm6,nb410_qq(%rsp) mulpd %xmm0,%xmm4 ## xmm4=r movapd %xmm4,nb410_r(%rsp) mulpd nb410_gbscale(%rsp),%xmm4 movl nb410_ntia(%rsp),%edi cvttpd2pi %xmm4,%mm6 ## mm6 = lu idx shll %r8d shll %r9d addl %edi,%r8d addl %edi,%r9d cvtpi2pd %mm6,%xmm5 subpd %xmm5,%xmm4 movapd %xmm4,%xmm1 ## xmm1=eps movapd %xmm1,%xmm2 mulpd %xmm2,%xmm2 ## xmm2=eps2 movq nb410_vdwparam(%rbp),%rdi pslld $2,%mm6 ## idx *= 4 movq nb410_GBtab(%rbp),%rsi movd %mm6,%r12d psrlq $32,%mm6 movd %mm6,%r13d ## indices in r12/r13 movlpd (%rdi,%r8,8),%xmm6 movlpd 8(%rdi,%r8,8),%xmm7 movapd %xmm0,%xmm9 ## rinv mulpd %xmm9,%xmm9 ## rinvsq movapd %xmm9,%xmm10 ## rinvsq mulpd %xmm10,%xmm10 ## rinv4 mulpd %xmm9,%xmm10 ## rinv6 movapd %xmm10,%xmm11 mulpd %xmm11,%xmm11 ## rinv12 movhpd (%rdi,%r9,8),%xmm6 movhpd 8(%rdi,%r9,8),%xmm7 ## load table data movapd (%rsi,%r12,8),%xmm4 ## Y1 F1 movapd (%rsi,%r13,8),%xmm3 ## Y2 F2 movapd %xmm4,%xmm5 unpcklpd %xmm3,%xmm4 ## Y1 Y2 unpckhpd %xmm3,%xmm5 ## F1 F2 mulpd %xmm6,%xmm10 ## vvdw6=c6*rinv6 mulpd %xmm7,%xmm11 ## vvdw12=c12*rinv12 movapd %xmm11,%xmm9 subpd %xmm10,%xmm11 ## Vvdw=Vvdw12-Vvdw6 ## add potential to vvdwtot addpd nb410_Vvdwtot(%rsp),%xmm11 movapd %xmm11,nb410_Vvdwtot(%rsp) movapd 16(%rsi,%r12,8),%xmm6 ## G1 H1 movapd 16(%rsi,%r13,8),%xmm3 ## G2 H2 movapd %xmm6,%xmm7 unpcklpd %xmm3,%xmm6 ## G1 G2 unpckhpd %xmm3,%xmm7 ## H1 H2 ## coulomb table ready, in xmm4-xmm7 mulpd %xmm1,%xmm7 ## xmm7=Heps mulpd %xmm1,%xmm6 ## xmm6=Geps mulpd %xmm1,%xmm7 ## xmm7=Heps2 addpd %xmm6,%xmm5 addpd %xmm7,%xmm5 ## xmm5=Fp mulpd nb410_two(%rsp),%xmm7 ## two*Heps2 movapd nb410_qq(%rsp),%xmm3 addpd %xmm6,%xmm7 addpd %xmm5,%xmm7 ## xmm7=FF mulpd %xmm1,%xmm5 ## xmm5=eps*Fp addpd %xmm4,%xmm5 ## xmm5=VV mulpd %xmm3,%xmm5 ## vcoul=qq*VV mulpd %xmm7,%xmm3 ## fijC=FF*qq ## LJ forces mulpd nb410_six(%rsp),%xmm10 mulpd nb410_twelve(%rsp),%xmm9 subpd %xmm10,%xmm9 mulpd %xmm0,%xmm9 ## (12*vnb12-6*vnb6)*rinv movq nb410_dvda(%rbp),%rsi ## Calculate dVda xorpd %xmm7,%xmm7 mulpd nb410_gbscale(%rsp),%xmm3 movapd %xmm3,%xmm6 mulpd nb410_r(%rsp),%xmm6 addpd %xmm5,%xmm6 ## update vctot addpd %xmm5,%xmm12 ## xmm6=(vcoul+fijC*r) subpd %xmm6,%xmm7 movapd %xmm7,%xmm6 movq nb410_faction(%rbp),%rdi ## the fj's - start by accumulating forces from memory movlpd (%rdi,%r10,8),%xmm2 movlpd 8(%rdi,%r10,8),%xmm4 movlpd 16(%rdi,%r10,8),%xmm5 ## update dvdasum addpd nb410_dvdasum(%rsp),%xmm7 movapd %xmm7,nb410_dvdasum(%rsp) ## update j atoms dvdaj movhlps %xmm6,%xmm7 addsd (%rsi,%r14,8),%xmm6 addsd (%rsi,%r15,8),%xmm7 movsd %xmm6,(%rsi,%r14,8) movsd %xmm7,(%rsi,%r15,8) movhpd (%rdi,%r11,8),%xmm2 movhpd 8(%rdi,%r11,8),%xmm4 movhpd 16(%rdi,%r11,8),%xmm5 subpd %xmm3,%xmm9 mulpd %xmm0,%xmm9 ## fscal movapd %xmm9,%xmm10 movapd %xmm9,%xmm11 mulpd nb410_dx(%rsp),%xmm9 mulpd nb410_dy(%rsp),%xmm10 mulpd nb410_dz(%rsp),%xmm11 addpd %xmm9,%xmm2⌨️ 快捷键说明
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