nb_kernel202_x86_64_sse.s

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        mulps   %xmm7,%xmm7
        subps   %xmm1,%xmm0
        subps   %xmm5,%xmm4
        mulps   %xmm6,%xmm0
        mulps   %xmm6,%xmm4
        mulps   %xmm3,%xmm0     ## fscal 
        mulps   %xmm4,%xmm7     ## fscal 

        movaps  %xmm0,%xmm1
        movaps  %xmm0,%xmm2
        mulps   nb202_dxH1O(%rsp),%xmm0
        mulps   nb202_dyH1O(%rsp),%xmm1
        mulps   nb202_dzH1O(%rsp),%xmm2
        ## update forces H1 - j water 
        movaps  nb202_fjxO(%rsp),%xmm3
        movaps  nb202_fjyO(%rsp),%xmm4
        movaps  nb202_fjzO(%rsp),%xmm5
        addps   %xmm0,%xmm3
        addps   %xmm1,%xmm4
        addps   %xmm2,%xmm5
        movaps  %xmm3,nb202_fjxO(%rsp)
        movaps  %xmm4,nb202_fjyO(%rsp)
        movaps  %xmm5,nb202_fjzO(%rsp)
        addps   nb202_fixH1(%rsp),%xmm0
        addps   nb202_fiyH1(%rsp),%xmm1
        addps   nb202_fizH1(%rsp),%xmm2
        movaps  %xmm0,nb202_fixH1(%rsp)
        movaps  %xmm1,nb202_fiyH1(%rsp)
        movaps  %xmm2,nb202_fizH1(%rsp)
        ## do forces H2 - j water 
        movaps %xmm7,%xmm0
        movaps %xmm7,%xmm1
        movaps %xmm7,%xmm2
        mulps   nb202_dxH2O(%rsp),%xmm0
        mulps   nb202_dyH2O(%rsp),%xmm1
        mulps   nb202_dzH2O(%rsp),%xmm2
        movaps  nb202_fjxO(%rsp),%xmm3
        movaps  nb202_fjyO(%rsp),%xmm4
        movaps  nb202_fjzO(%rsp),%xmm5
        addps   %xmm0,%xmm3
        addps   %xmm1,%xmm4
        addps   %xmm2,%xmm5
        movq    nb202_faction(%rbp),%rsi
        movaps  %xmm3,nb202_fjxO(%rsp)
        movaps  %xmm4,nb202_fjyO(%rsp)
        movaps  %xmm5,nb202_fjzO(%rsp)
        addps   nb202_fixH2(%rsp),%xmm0
        addps   nb202_fiyH2(%rsp),%xmm1
        addps   nb202_fizH2(%rsp),%xmm2
        movaps  %xmm0,nb202_fixH2(%rsp)
        movaps  %xmm1,nb202_fiyH2(%rsp)
        movaps  %xmm2,nb202_fizH2(%rsp)

        ## update j water forces from local variables 
        movlps  (%rsi,%rax,4),%xmm0
        movlps  12(%rsi,%rax,4),%xmm1
        movhps  24(%rsi,%rax,4),%xmm1
        movaps  nb202_fjxO(%rsp),%xmm3
        movaps  nb202_fjyO(%rsp),%xmm4
        movaps  nb202_fjzO(%rsp),%xmm5
        movaps  %xmm5,%xmm6
        movaps  %xmm5,%xmm7
        shufps $2,%xmm6,%xmm6 ## 00000010
        shufps $3,%xmm7,%xmm7 # # 00000011
        addss   8(%rsi,%rax,4),%xmm5
        addss   20(%rsi,%rax,4),%xmm6
        addss   32(%rsi,%rax,4),%xmm7
        movss   %xmm5,8(%rsi,%rax,4)
        movss   %xmm6,20(%rsi,%rax,4)
        movss   %xmm7,32(%rsi,%rax,4)
        movaps   %xmm3,%xmm5
        unpcklps %xmm4,%xmm3
        unpckhps %xmm4,%xmm5
        addps    %xmm3,%xmm0
        addps    %xmm5,%xmm1
        movlps  %xmm0,(%rsi,%rax,4)
        movlps  %xmm1,12(%rsi,%rax,4)
        movhps  %xmm1,24(%rsi,%rax,4)

        decl nb202_innerk(%rsp)
        jz    _nb_kernel202_x86_64_sse.nb202_updateouterdata
        jmp   _nb_kernel202_x86_64_sse.nb202_single_loop
_nb_kernel202_x86_64_sse.nb202_updateouterdata: 
        movl  nb202_ii3(%rsp),%ecx
        movq  nb202_faction(%rbp),%rdi
        movq  nb202_fshift(%rbp),%rsi
        movl  nb202_is3(%rsp),%edx

        ## accumulate  Oi forces in xmm0, xmm1, xmm2 
        movaps nb202_fixO(%rsp),%xmm0
        movaps nb202_fiyO(%rsp),%xmm1
        movaps nb202_fizO(%rsp),%xmm2

        movhlps %xmm0,%xmm3
        movhlps %xmm1,%xmm4
        movhlps %xmm2,%xmm5
        addps  %xmm3,%xmm0
        addps  %xmm4,%xmm1
        addps  %xmm5,%xmm2 ## sum is in 1/2 in xmm0-xmm2 

        movaps %xmm0,%xmm3
        movaps %xmm1,%xmm4
        movaps %xmm2,%xmm5

        shufps $1,%xmm3,%xmm3
        shufps $1,%xmm4,%xmm4
        shufps $1,%xmm5,%xmm5
        addss  %xmm3,%xmm0
        addss  %xmm4,%xmm1
        addss  %xmm5,%xmm2      ## xmm0-xmm2 has single force in pos0 

        ## increment i force 
        movss  (%rdi,%rcx,4),%xmm3
        movss  4(%rdi,%rcx,4),%xmm4
        movss  8(%rdi,%rcx,4),%xmm5
        subss  %xmm0,%xmm3
        subss  %xmm1,%xmm4
        subss  %xmm2,%xmm5
        movss  %xmm3,(%rdi,%rcx,4)
        movss  %xmm4,4(%rdi,%rcx,4)
        movss  %xmm5,8(%rdi,%rcx,4)

        ## accumulate force in xmm6/xmm7 for fshift 
        movaps %xmm0,%xmm6
        movss %xmm2,%xmm7
        movlhps %xmm1,%xmm6
        shufps $8,%xmm6,%xmm6 ## 00001000       

        ## accumulate H1i forces in xmm0, xmm1, xmm2 
        movaps nb202_fixH1(%rsp),%xmm0
        movaps nb202_fiyH1(%rsp),%xmm1
        movaps nb202_fizH1(%rsp),%xmm2

        movhlps %xmm0,%xmm3
        movhlps %xmm1,%xmm4
        movhlps %xmm2,%xmm5
        addps  %xmm3,%xmm0
        addps  %xmm4,%xmm1
        addps  %xmm5,%xmm2 ## sum is in 1/2 in xmm0-xmm2 

        movaps %xmm0,%xmm3
        movaps %xmm1,%xmm4
        movaps %xmm2,%xmm5

        shufps $1,%xmm3,%xmm3
        shufps $1,%xmm4,%xmm4
        shufps $1,%xmm5,%xmm5
        addss  %xmm3,%xmm0
        addss  %xmm4,%xmm1
        addss  %xmm5,%xmm2      ## xmm0-xmm2 has single force in pos0 

        ## increment i force 
        movss  12(%rdi,%rcx,4),%xmm3
        movss  16(%rdi,%rcx,4),%xmm4
        movss  20(%rdi,%rcx,4),%xmm5
        subss  %xmm0,%xmm3
        subss  %xmm1,%xmm4
        subss  %xmm2,%xmm5
        movss  %xmm3,12(%rdi,%rcx,4)
        movss  %xmm4,16(%rdi,%rcx,4)
        movss  %xmm5,20(%rdi,%rcx,4)

        ## accumulate force in xmm6/xmm7 for fshift 
        addss %xmm2,%xmm7
        movlhps %xmm1,%xmm0
        shufps $8,%xmm0,%xmm0 ## 00001000       
        addps   %xmm0,%xmm6

        ## accumulate H2i forces in xmm0, xmm1, xmm2 
        movaps nb202_fixH2(%rsp),%xmm0
        movaps nb202_fiyH2(%rsp),%xmm1
        movaps nb202_fizH2(%rsp),%xmm2

        movhlps %xmm0,%xmm3
        movhlps %xmm1,%xmm4
        movhlps %xmm2,%xmm5
        addps  %xmm3,%xmm0
        addps  %xmm4,%xmm1
        addps  %xmm5,%xmm2 ## sum is in 1/2 in xmm0-xmm2 

        movaps %xmm0,%xmm3
        movaps %xmm1,%xmm4
        movaps %xmm2,%xmm5

        shufps $1,%xmm3,%xmm3
        shufps $1,%xmm4,%xmm4
        shufps $1,%xmm5,%xmm5
        addss  %xmm3,%xmm0
        addss  %xmm4,%xmm1
        addss  %xmm5,%xmm2      ## xmm0-xmm2 has single force in pos0 

        ## increment i force 
        movss  24(%rdi,%rcx,4),%xmm3
        movss  28(%rdi,%rcx,4),%xmm4
        movss  32(%rdi,%rcx,4),%xmm5
        subss  %xmm0,%xmm3
        subss  %xmm1,%xmm4
        subss  %xmm2,%xmm5
        movss  %xmm3,24(%rdi,%rcx,4)
        movss  %xmm4,28(%rdi,%rcx,4)
        movss  %xmm5,32(%rdi,%rcx,4)

        ## accumulate force in xmm6/xmm7 for fshift 
        addss %xmm2,%xmm7
        movlhps %xmm1,%xmm0
        shufps $8,%xmm0,%xmm0 ## 00001000       
        addps   %xmm0,%xmm6

        ## increment fshift force  
        movlps  (%rsi,%rdx,4),%xmm3
        movss  8(%rsi,%rdx,4),%xmm4
        subps  %xmm6,%xmm3
        subss  %xmm7,%xmm4
        movlps  %xmm3,(%rsi,%rdx,4)
        movss  %xmm4,8(%rsi,%rdx,4)

        ## get n from stack
        movl nb202_n(%rsp),%esi
        ## get group index for i particle 
        movq  nb202_gid(%rbp),%rdx              ## base of gid[]
        movl  (%rdx,%rsi,4),%edx                ## ggid=gid[n]

        ## accumulate total potential energy and update it 
        movaps nb202_vctot(%rsp),%xmm7
        ## accumulate 
        movhlps %xmm7,%xmm6
        addps  %xmm6,%xmm7      ## pos 0-1 in xmm7 have the sum now 
        movaps %xmm7,%xmm6
        shufps $1,%xmm6,%xmm6
        addss  %xmm6,%xmm7

        ## add earlier value from mem 
        movq  nb202_Vc(%rbp),%rax
        addss (%rax,%rdx,4),%xmm7
        ## move back to mem 
        movss %xmm7,(%rax,%rdx,4)

        ## finish if last 
        movl nb202_nn1(%rsp),%ecx
        ## esi already loaded with n
        incl %esi
        subl %esi,%ecx
        jz _nb_kernel202_x86_64_sse.nb202_outerend

        ## not last, iterate outer loop once more!  
        movl %esi,nb202_n(%rsp)
        jmp _nb_kernel202_x86_64_sse.nb202_outer
_nb_kernel202_x86_64_sse.nb202_outerend: 
        ## check if more outer neighborlists remain
        movl  nb202_nri(%rsp),%ecx
        ## esi already loaded with n above
        subl  %esi,%ecx
        jz _nb_kernel202_x86_64_sse.nb202_end
        ## non-zero, do one more workunit
        jmp   _nb_kernel202_x86_64_sse.nb202_threadloop
_nb_kernel202_x86_64_sse.nb202_end: 

        movl nb202_nouter(%rsp),%eax
        movl nb202_ninner(%rsp),%ebx
        movq nb202_outeriter(%rbp),%rcx
        movq nb202_inneriter(%rbp),%rdx
        movl %eax,(%rcx)
        movl %ebx,(%rdx)

        addq $1544,%rsp
        emms


        pop %r15
        pop %r14
        pop %r13
        pop %r12

        pop %rbx
        pop    %rbp
        ret






.globl nb_kernel202nf_x86_64_sse
.globl _nb_kernel202nf_x86_64_sse
nb_kernel202nf_x86_64_sse:      
_nb_kernel202nf_x86_64_sse:     
##      Room for return address and rbp (16 bytes)
.set nb202nf_fshift, 16
.set nb202nf_gid, 24
.set nb202nf_pos, 32
.set nb202nf_faction, 40
.set nb202nf_charge, 48
.set nb202nf_p_facel, 56
.set nb202nf_argkrf, 64
.set nb202nf_argcrf, 72
.set nb202nf_Vc, 80
.set nb202nf_type, 88
.set nb202nf_p_ntype, 96
.set nb202nf_vdwparam, 104
.set nb202nf_Vvdw, 112
.set nb202nf_p_tabscale, 120
.set nb202nf_VFtab, 128
.set nb202nf_invsqrta, 136
.set nb202nf_dvda, 144
.set nb202nf_p_gbtabscale, 152
.set nb202nf_GBtab, 160
.set nb202nf_p_nthreads, 168
.set nb202nf_count, 176
.set nb202nf_mtx, 184
.set nb202nf_outeriter, 192
.set nb202nf_inneriter, 200
.set nb202nf_work, 208
        ## stack offsets for local variables  
        ## bottom of stack is cache-aligned for sse use 
.set nb202nf_ixO, 0
.set nb202nf_iyO, 16
.set nb202nf_izO, 32
.set nb202nf_ixH1, 48
.set nb202nf_iyH1, 64
.set nb202nf_izH1, 80
.set nb202nf_ixH2, 96
.set nb202nf_iyH2, 112
.set nb202nf_izH2, 128
.set nb202nf_jxO, 144
.set nb202nf_jyO, 160
.set nb202nf_jzO, 176
.set nb202nf_jxH1, 192
.set nb202nf_jyH1, 208
.set nb202nf_jzH1, 224
.set nb202nf_jxH2, 240
.set nb202nf_jyH2, 256
.set nb202nf_jzH2, 272
.set nb202nf_qqOO, 288
.set nb202nf_qqOH, 304
.set nb202nf_qqHH, 320
.set nb202nf_vctot, 336
.set nb202nf_half, 352
.set nb202nf_three, 368
.set nb202nf_rsqOO, 384
.set nb202nf_rsqOH1, 400
.set nb202nf_rsqOH2, 416
.set nb202nf_rsqH1O, 432
.set nb202nf_rsqH1H1, 448
.set nb202nf_rsqH1H2, 464
.set nb202nf_rsqH2O, 480
.set nb202nf_rsqH2H1, 496
.set nb202nf_rsqH2H2, 512
.set nb202nf_rinvOO, 528
.set nb202nf_rinvOH1, 544
.set nb202nf_rinvOH2, 560
.set nb202nf_rinvH1O, 576
.set nb202nf_rinvH1H1, 592
.set nb202nf_rinvH1H2, 608
.set nb202nf_rinvH2O, 624
.set nb202nf_rinvH2H1, 640
.set nb202nf_rinvH2H2, 656
.set nb202nf_krf, 672
.set nb202nf_crf, 688
.set nb202nf_is3, 704
.set nb202nf_ii3, 708
.set nb202nf_innerjjnr, 712
.set nb202nf_nri, 720
.set nb202nf_iinr, 728
.set nb202nf_jindex, 736
.set nb202nf_jjnr, 744
.set nb202nf_shift, 752
.set nb202nf_shiftvec, 760
.set nb202nf_facel, 768
.set nb202nf_innerk, 776
.set nb202nf_n, 780
.set nb202nf_nn1, 784
.set nb202nf_nouter, 788
.set nb202nf_ninner, 792

        push %rbp
        movq %rsp,%rbp
        push %rbx

        emms
        subq $808,%rsp          ## local variable stack space (n*16+8)

        ## zero 32-bit iteration counters
        movl $0,%eax
        movl %eax,nb202nf_nouter(%rsp)
        movl %eax,nb202nf_ninner(%rsp)


        movl (%rdi),%edi
        movl %edi,nb202nf_nri(%rsp)
        movq %rsi,nb202nf_iinr(%rsp)
        movq %rdx,nb202nf_jindex(%rsp)
        movq %rcx,nb202nf_jjnr(%rsp)
        movq %r8,nb202nf_shift(%rsp)
        movq %r9,nb202nf_shiftvec(%rsp)
        movq nb202nf_p_facel(%rbp),%rsi
        movss (%rsi),%xmm0
        movss %xmm0,nb202nf_facel(%rsp)

        movq nb202nf_argkrf(%rbp),%rsi
        movq nb202nf_argcrf(%rbp),%rdi
        movss (%rsi),%xmm1
        movss (%rdi),%xmm2
        shufps $0,%xmm1,%xmm1
        shufps $0,%xmm2,%xmm2
        movaps %xmm1,nb202nf_krf(%rsp)
        movaps %xmm2,nb202nf_crf(%rsp)


        ## assume we have at least one i particle - start directly 
        movq  nb202nf_iinr(%rsp),%rcx         ## rcx = pointer into iinr[]      
        movl  (%rcx),%ebx           ## ebx =ii 

        movq  nb202nf_charge(%rbp),%rdx
        movss (%rdx,%rbx,4),%xmm3
        movss %xmm3,%xmm4
        movss 4(%rdx,%rbx,4),%xmm5
        movq nb202nf_p_facel(%rbp),%rsi
        movss (%rsi),%xmm0
        movss nb202nf_facel(%rsp),%xmm6
        mulss  %xmm3,%xmm3
        mulss  %xmm5,%xmm4
        mulss  %xmm5,%xmm5
        mulss  %xmm6,%xmm3
        mulss  %xmm6,%xmm4