nb_kernel430_x86_64_sse.s
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#### $Id: nb_kernel430_x86_64_sse.s,v 1.4.2.3 2006/09/22 08:32:51 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_kernel430_x86_64_sse.globl _nb_kernel430_x86_64_ssenb_kernel430_x86_64_sse: _nb_kernel430_x86_64_sse: ## Room for return address and rbp (16 bytes).set nb430_fshift, 16.set nb430_gid, 24.set nb430_pos, 32.set nb430_faction, 40.set nb430_charge, 48.set nb430_p_facel, 56.set nb430_argkrf, 64.set nb430_argcrf, 72.set nb430_Vc, 80.set nb430_type, 88.set nb430_p_ntype, 96.set nb430_vdwparam, 104.set nb430_Vvdw, 112.set nb430_p_tabscale, 120.set nb430_VFtab, 128.set nb430_invsqrta, 136.set nb430_dvda, 144.set nb430_p_gbtabscale, 152.set nb430_GBtab, 160.set nb430_p_nthreads, 168.set nb430_count, 176.set nb430_mtx, 184.set nb430_outeriter, 192.set nb430_inneriter, 200.set nb430_work, 208 ## stack offsets for local variables ## bottom of stack is cache-aligned for sse use .set nb430_ix, 0.set nb430_iy, 16.set nb430_iz, 32.set nb430_iq, 48.set nb430_dx, 64.set nb430_dy, 80.set nb430_dz, 96.set nb430_eps, 112.set nb430_gbtsc, 128.set nb430_tsc, 144.set nb430_qq, 160.set nb430_c6, 176.set nb430_c12, 192.set nb430_epsgb, 208.set nb430_vctot, 224.set nb430_Vvdwtot, 240.set nb430_fix, 256.set nb430_fiy, 272.set nb430_fiz, 288.set nb430_half, 304.set nb430_three, 320.set nb430_r, 336.set nb430_isai, 352.set nb430_isaprod, 368.set nb430_dvdasum, 384.set nb430_gbscale, 400.set nb430_rinv, 416.set nb430_nri, 432.set nb430_iinr, 440.set nb430_jindex, 448.set nb430_jjnr, 456.set nb430_shift, 464.set nb430_shiftvec, 472.set nb430_facel, 480.set nb430_innerjjnr, 488.set nb430_ii, 496.set nb430_is3, 500.set nb430_ii3, 504.set nb430_ntia, 508.set nb430_innerk, 512.set nb430_n, 516.set nb430_nn1, 520.set nb430_ntype, 524.set nb430_nouter, 528.set nb430_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,nb430_nouter(%rsp) movl %eax,nb430_ninner(%rsp) movl (%rdi),%edi movl %edi,nb430_nri(%rsp) movq %rsi,nb430_iinr(%rsp) movq %rdx,nb430_jindex(%rsp) movq %rcx,nb430_jjnr(%rsp) movq %r8,nb430_shift(%rsp) movq %r9,nb430_shiftvec(%rsp) movq nb430_p_ntype(%rbp),%rdi movl (%rdi),%edi movl %edi,nb430_ntype(%rsp) movq nb430_p_facel(%rbp),%rsi movss (%rsi),%xmm0 movss %xmm0,nb430_facel(%rsp) movq nb430_p_tabscale(%rbp),%rax movss (%rax),%xmm3 shufps $0,%xmm3,%xmm3 movaps %xmm3,nb430_tsc(%rsp) movq nb430_p_gbtabscale(%rbp),%rbx movss (%rbx),%xmm4 shufps $0,%xmm4,%xmm4 movaps %xmm4,nb430_gbtsc(%rsp) ## create constant floating-point factors on stack movl $0x3f000000,%eax ## half in IEEE (hex) movl %eax,nb430_half(%rsp) movss nb430_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,nb430_half(%rsp) movaps %xmm3,nb430_three(%rsp)_nb_kernel430_x86_64_sse.nb430_threadloop: movq nb430_count(%rbp),%rsi ## pointer to sync counter movl (%rsi),%eax_nb_kernel430_x86_64_sse.nb430_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_kernel430_x86_64_sse.nb430_spinlock ## if(nn1>nri) nn1=nri movl nb430_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,nb430_n(%rsp) movl %ebx,nb430_nn1(%rsp) subl %eax,%ebx ## calc number of outer lists movl %eax,%esi ## copy n to esi jg _nb_kernel430_x86_64_sse.nb430_outerstart jmp _nb_kernel430_x86_64_sse.nb430_end_nb_kernel430_x86_64_sse.nb430_outerstart: ## ebx contains number of outer iterations addl nb430_nouter(%rsp),%ebx movl %ebx,nb430_nouter(%rsp)_nb_kernel430_x86_64_sse.nb430_outer: movq nb430_shift(%rsp),%rax ## rax = pointer into shift[] movl (%rax,%rsi,4),%ebx ## ebx=shift[n] lea (%rbx,%rbx,2),%rbx ## rbx=3*is movl %ebx,nb430_is3(%rsp) ## store is3 movq nb430_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 nb430_iinr(%rsp),%rcx ## rcx = pointer into iinr[] movl (%rcx,%rsi,4),%ebx ## ebx =ii movl %ebx,nb430_ii(%rsp) movq nb430_charge(%rbp),%rdx movss (%rdx,%rbx,4),%xmm3 mulss nb430_facel(%rsp),%xmm3 shufps $0,%xmm3,%xmm3 movq nb430_invsqrta(%rbp),%rdx ## load invsqrta[ii] movss (%rdx,%rbx,4),%xmm4 shufps $0,%xmm4,%xmm4 movq nb430_type(%rbp),%rdx movl (%rdx,%rbx,4),%edx imull nb430_ntype(%rsp),%edx shll %edx movl %edx,nb430_ntia(%rsp) lea (%rbx,%rbx,2),%rbx ## rbx = 3*ii=ii3 movq nb430_pos(%rbp),%rax ## rax = base of pos[] addss (%rax,%rbx,4),%xmm0 addss 4(%rax,%rbx,4),%xmm1 addss 8(%rax,%rbx,4),%xmm2 movaps %xmm3,nb430_iq(%rsp) movaps %xmm4,nb430_isai(%rsp) shufps $0,%xmm0,%xmm0 shufps $0,%xmm1,%xmm1 shufps $0,%xmm2,%xmm2 movaps %xmm0,nb430_ix(%rsp) movaps %xmm1,nb430_iy(%rsp) movaps %xmm2,nb430_iz(%rsp) movl %ebx,nb430_ii3(%rsp) ## clear vctot and i forces xorps %xmm4,%xmm4 movaps %xmm4,nb430_vctot(%rsp) movaps %xmm4,nb430_Vvdwtot(%rsp) movaps %xmm4,nb430_dvdasum(%rsp) movaps %xmm4,nb430_fix(%rsp) movaps %xmm4,nb430_fiy(%rsp) movaps %xmm4,nb430_fiz(%rsp) movq nb430_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 nb430_pos(%rbp),%rsi movq nb430_faction(%rbp),%rdi movq nb430_jjnr(%rsp),%rax shll $2,%ecx addq %rcx,%rax movq %rax,nb430_innerjjnr(%rsp) ## pointer to jjnr[nj0] movl %edx,%ecx subl $4,%edx addl nb430_ninner(%rsp),%ecx movl %ecx,nb430_ninner(%rsp) addl $0,%edx movl %edx,nb430_innerk(%rsp) ## number of innerloop atoms jge _nb_kernel430_x86_64_sse.nb430_unroll_loop jmp _nb_kernel430_x86_64_sse.nb430_finish_inner_nb_kernel430_x86_64_sse.nb430_unroll_loop: ## quad-unroll innerloop here movq nb430_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,nb430_innerjjnr(%rsp) ## advance pointer (unrolled 4) ## load isaj movq nb430_invsqrta(%rbp),%rsi movss (%rsi,%rax,4),%xmm3 movss (%rsi,%rcx,4),%xmm4 movss (%rsi,%rbx,4),%xmm6 movss (%rsi,%rdx,4),%xmm7 movaps nb430_isai(%rsp),%xmm2 shufps $0,%xmm6,%xmm3 shufps $0,%xmm7,%xmm4 shufps $136,%xmm4,%xmm3 ## 10001000 ;# all isaj in xmm3 mulps %xmm3,%xmm2 movaps %xmm2,nb430_isaprod(%rsp) movaps %xmm2,%xmm1 mulps nb430_gbtsc(%rsp),%xmm1 movaps %xmm1,nb430_gbscale(%rsp) movq nb430_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 mulps nb430_iq(%rsp),%xmm2 shufps $0,%xmm6,%xmm3 shufps $0,%xmm7,%xmm4 shufps $136,%xmm4,%xmm3 ## 10001000 ;# all charges in xmm3 mulps %xmm2,%xmm3 movaps %xmm3,nb430_qq(%rsp) ## vdw parameters movq nb430_type(%rbp),%rsi movl (%rsi,%rax,4),%r12d movl (%rsi,%rbx,4),%r13d movl (%rsi,%rcx,4),%r14d movl (%rsi,%rdx,4),%r15d shll %r12d shll %r13d shll %r14d shll %r15d movl nb430_ntia(%rsp),%edi addl %edi,%r12d addl %edi,%r13d addl %edi,%r14d addl %edi,%r15d movq nb430_vdwparam(%rbp),%rsi movlps (%rsi,%r12,4),%xmm3 movlps (%rsi,%r14,4),%xmm7 movhps (%rsi,%r13,4),%xmm3 movhps (%rsi,%r15,4),%xmm7 movaps %xmm3,%xmm0 shufps $136,%xmm7,%xmm0 ## 10001000 shufps $221,%xmm7,%xmm3 ## 11011101 movaps %xmm0,nb430_c6(%rsp) movaps %xmm3,nb430_c12(%rsp) movq nb430_pos(%rbp),%rsi ## base of pos[] lea (%rax,%rax,2),%r8 ## jnr lea (%rbx,%rbx,2),%r9 lea (%rcx,%rcx,2),%r10 lea (%rdx,%rdx,2),%r11 ## move four coordinates to xmm0-xmm2 movlps (%rsi,%r8,4),%xmm4 movlps (%rsi,%r10,4),%xmm5 movss 8(%rsi,%r8,4),%xmm2 movss 8(%rsi,%r10,4),%xmm6 movhps (%rsi,%r9,4),%xmm4 movhps (%rsi,%r11,4),%xmm5 movss 8(%rsi,%r9,4),%xmm0 movss 8(%rsi,%r11,4),%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 ## calc dr subps nb430_ix(%rsp),%xmm0 subps nb430_iy(%rsp),%xmm1 subps nb430_iz(%rsp),%xmm2 ## store dr movaps %xmm0,nb430_dx(%rsp) movaps %xmm1,nb430_dy(%rsp) movaps %xmm2,nb430_dz(%rsp) movd %r8,%mm0 ## store j3 movd %r9,%mm1 movd %r10,%mm2 movd %r11,%mm3 ## square it mulps %xmm0,%xmm0 mulps %xmm1,%xmm1 mulps %xmm2,%xmm2 addps %xmm1,%xmm0 addps %xmm2,%xmm0 movaps %xmm0,%xmm4 ## rsq in xmm4 rsqrtps %xmm4,%xmm5 ## lookup seed in xmm5 movaps %xmm5,%xmm2 mulps %xmm5,%xmm5 movaps nb430_three(%rsp),%xmm1 mulps %xmm4,%xmm5 ## rsq*lu*lu movaps nb430_half(%rsp),%xmm0 subps %xmm5,%xmm1 ## 30-rsq*lu*lu mulps %xmm2,%xmm1 mulps %xmm1,%xmm0 ## xmm0=rinv mulps %xmm0,%xmm4 ## xmm4=r movaps %xmm4,nb430_r(%rsp) movaps %xmm0,nb430_rinv(%rsp) movaps %xmm4,%xmm8 ## r mulps nb430_gbscale(%rsp),%xmm4 ## rgbtab mulps nb430_tsc(%rsp),%xmm8 ## rtab ## truncate and convert to integers cvttps2dq %xmm4,%xmm5 ## gb cvttps2dq %xmm8,%xmm9 ## lj ## convert back to float cvtdq2ps %xmm5,%xmm6 ## gb cvtdq2ps %xmm9,%xmm10 ## lj ## multiply by 4 and 8, respectively pslld $2,%xmm5 ## gb pslld $3,%xmm9 ## lj ## move to integer registers movhlps %xmm5,%xmm7 ## gb movhlps %xmm9,%xmm11 ## lj movd %xmm5,%r8d ## gb movd %xmm9,%r12d ## lj movd %xmm7,%r10d ## gb⌨️ 快捷键说明
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