nb_kernel302_ia32_sse.intel_syntax.s
来自「最著名最快的分子模拟软件」· S 代码 · 共 2,258 行 · 第 1/5 页
S
2,258 行
mulps xmm3, xmm7 ;# fijC=FF*qq ;# at this point mm5 contains vcoul and mm3 fijC addps xmm5, [esp + nb302_vctot] movaps [esp + nb302_vctot], xmm5 xorps xmm1, xmm1 mulps xmm3, [esp + nb302_tsc] mulps xmm3, xmm0 subps xmm1, xmm3 movaps xmm0, xmm1 movaps xmm2, xmm1 movaps xmm3, [esp + nb302_fjxH1] movaps xmm4, [esp + nb302_fjyH1] movaps xmm5, [esp + nb302_fjzH1] mulps xmm0, [esp + nb302_dxH2H1] mulps xmm1, [esp + nb302_dyH2H1] mulps xmm2, [esp + nb302_dzH2H1] subps xmm3, xmm0 subps xmm4, xmm1 subps xmm5, xmm2 addps xmm0, [esp + nb302_fixH2] addps xmm1, [esp + nb302_fiyH2] addps xmm2, [esp + nb302_fizH2] movaps [esp + nb302_fjxH1], xmm3 movaps [esp + nb302_fjyH1], xmm4 movaps [esp + nb302_fjzH1], xmm5 movaps [esp + nb302_fixH2], xmm0 movaps [esp + nb302_fiyH2], xmm1 movaps [esp + nb302_fizH2], xmm2 ;# H2-H2 interaction movaps xmm0, [esp + nb302_rinvH2H2] movaps xmm1, xmm0 mulps xmm1, [esp + nb302_rsqH2H2] ;# xmm1=r mulps xmm1, [esp + nb302_tsc] movhlps xmm2, xmm1 cvttps2pi mm6, xmm1 cvttps2pi mm7, xmm2 ;# mm6/mm7 contain lu indices cvtpi2ps xmm3, mm6 cvtpi2ps xmm2, mm7 movlhps xmm3, xmm2 subps xmm1, xmm3 ;# xmm1=eps movaps xmm2, xmm1 mulps xmm2, xmm2 ;# xmm2=eps2 pslld mm6, 2 pslld mm7, 2 movd eax, mm6 psrlq mm6, 32 movd ecx, mm7 psrlq mm7, 32 movd ebx, mm6 movd edx, mm7 movlps xmm5, [esi + eax*4] movlps xmm7, [esi + ecx*4] movhps xmm5, [esi + ebx*4] movhps xmm7, [esi + edx*4] ;# got half coulomb table movaps xmm4, xmm5 shufps xmm4, xmm7, 136 ;# constant 10001000 shufps xmm5, xmm7, 221 ;# constant 11011101 movlps xmm7, [esi + eax*4 + 8] movlps xmm3, [esi + ecx*4 + 8] movhps xmm7, [esi + ebx*4 + 8] movhps xmm3, [esi + edx*4 + 8] ;# other half of coulomb table movaps xmm6, xmm7 shufps xmm6, xmm3, 136 ;# constant 10001000 shufps xmm7, xmm3, 221 ;# constant 11011101 ;# coulomb table ready, in xmm4-xmm7 mulps xmm6, xmm1 ;# xmm6=Geps mulps xmm7, xmm2 ;# xmm7=Heps2 addps xmm5, xmm6 addps xmm5, xmm7 ;# xmm5=Fp mulps xmm7, [esp + nb302_two] ;# two*Heps2 movaps xmm3, [esp + nb302_qqHH] addps xmm7, xmm6 addps xmm7, xmm5 ;# xmm7=FF mulps xmm5, xmm1 ;# xmm5=eps*Fp addps xmm5, xmm4 ;# xmm5=VV mulps xmm5, xmm3 ;# vcoul=qq*VV mulps xmm3, xmm7 ;# fijC=FF*qq ;# at this point mm5 contains vcoul and mm3 fijC addps xmm5, [esp + nb302_vctot] movaps [esp + nb302_vctot], xmm5 xorps xmm1, xmm1 mulps xmm3, [esp + nb302_tsc] mulps xmm3, xmm0 subps xmm1, xmm3 movaps xmm0, xmm1 movaps xmm2, xmm1 movaps xmm3, [esp + nb302_fjxH2] movaps xmm4, [esp + nb302_fjyH2] movaps xmm5, [esp + nb302_fjzH2] mulps xmm0, [esp + nb302_dxH2H2] mulps xmm1, [esp + nb302_dyH2H2] mulps xmm2, [esp + nb302_dzH2H2] subps xmm3, xmm0 subps xmm4, xmm1 subps xmm5, xmm2 addps xmm0, [esp + nb302_fixH2] addps xmm1, [esp + nb302_fiyH2] addps xmm2, [esp + nb302_fizH2] movaps [esp + nb302_fjxH2], xmm3 movaps [esp + nb302_fjyH2], xmm4 movaps [esp + nb302_fjzH2], xmm5 movaps [esp + nb302_fixH2], xmm0 movaps [esp + nb302_fiyH2], xmm1 movaps [esp + nb302_fizH2], xmm2 mov edi, [ebp + nb302_faction] movd eax, mm0 movd ebx, mm1 movd ecx, mm2 movd edx, mm3 ;# Did all interactions - now update j forces ;# At this stage forces are still on the stack, in positions: ;# fjxO, fjyO, fjzO, ... , fjzH2. ;# Each position is a quadruplet of forces for the four ;# corresponding j waters, so we need to transpose them before ;# adding to the memory positions. ;# ;# This _used_ to be a simple transpose, but the resulting high number ;# of unaligned 128-bit load/stores might trigger a possible hardware ;# bug on Athlon and Opteron chips, so I have worked around it ;# to use 64-bit load/stores instead. The performance hit should be ;# very modest, since the 128-bit unaligned memory instructions were ;# slow anyway. ;# 4 j waters with three atoms each - first do Oxygen X & Y forces for 4 j particles movaps xmm0, [esp + nb302_fjxO] ;# xmm0= fjxOa fjxOb fjxOc fjxOd movaps xmm2, [esp + nb302_fjyO] ;# xmm1= fjyOa fjyOb fjyOc fjyOd movlps xmm3, [edi + eax*4] movlps xmm4, [edi + ecx*4] movaps xmm1, xmm0 unpcklps xmm0, xmm2 ;# xmm0= fjxOa fjyOa fjxOb fjyOb unpckhps xmm1, xmm2 ;# xmm1= fjxOc fjyOc fjxOd fjyOd movhps xmm3, [edi + ebx*4] movhps xmm4, [edi + edx*4] addps xmm3, xmm0 addps xmm4, xmm1 movlps [edi + eax*4], xmm3 movlps [edi + ecx*4], xmm4 movhps [edi + ebx*4], xmm3 movhps [edi + edx*4], xmm4 ;# Oxygen Z & first hydrogen X forces for 4 j particles movaps xmm0, [esp + nb302_fjzO] ;# xmm0= fjzOa fjzOb fjzOc fjzOd movaps xmm2, [esp + nb302_fjxH1] ;# xmm1= fjxH1a fjxH1b fjxH1c fjxH1d movlps xmm3, [edi + eax*4 + 8] movlps xmm4, [edi + ecx*4 + 8] movaps xmm1, xmm0 unpcklps xmm0, xmm2 ;# xmm0= fjzOa fjxH1a fjzOb fjxH1b unpckhps xmm1, xmm2 ;# xmm1= fjzOc fjxH1c fjzOd fjxH1d movhps xmm3, [edi + ebx*4 + 8] movhps xmm4, [edi + edx*4 + 8] addps xmm3, xmm0 addps xmm4, xmm1 movlps [edi + eax*4 + 8], xmm3 movlps [edi + ecx*4 + 8], xmm4 movhps [edi + ebx*4 + 8], xmm3 movhps [edi + edx*4 + 8], xmm4 ;# First hydrogen Y & Z forces for 4 j particles movaps xmm0, [esp + nb302_fjyH1] ;# xmm0= fjyH1a fjyH1b fjyH1c fjyH1d movaps xmm2, [esp + nb302_fjzH1] ;# xmm1= fjzH1a fjzH1b fjzH1c fjzH1d movlps xmm3, [edi + eax*4 + 16] movlps xmm4, [edi + ecx*4 + 16] movaps xmm1, xmm0 unpcklps xmm0, xmm2 ;# xmm0= fjyH1a fjzH1a fjyH1b fjzH1b unpckhps xmm1, xmm2 ;# xmm1= fjyH1c fjzH1c fjyH1d fjzH1d movhps xmm3, [edi + ebx*4 + 16] movhps xmm4, [edi + edx*4 + 16] addps xmm3, xmm0 addps xmm4, xmm1 movlps [edi + eax*4 + 16], xmm3 movlps [edi + ecx*4 + 16], xmm4 movhps [edi + ebx*4 + 16], xmm3 movhps [edi + edx*4 + 16], xmm4 ;# Second hydrogen X & Y forces for 4 j particles movaps xmm0, [esp + nb302_fjxH2] ;# xmm0= fjxH2a fjxH2b fjxH2c fjxH2d movaps xmm2, [esp + nb302_fjyH2] ;# xmm1= fjyH2a fjyH2b fjyH2c fjyH2d movlps xmm3, [edi + eax*4 + 24] movlps xmm4, [edi + ecx*4 + 24] movaps xmm1, xmm0 unpcklps xmm0, xmm2 ;# xmm0= fjxH2a fjyH2a fjxH2b fjyH2b unpckhps xmm1, xmm2 ;# xmm1= fjxH2c fjyH2c fjxH2d fjyH2d movhps xmm3, [edi + ebx*4 + 24] movhps xmm4, [edi + edx*4 + 24] addps xmm3, xmm0 addps xmm4, xmm1 movlps [edi + eax*4 + 24], xmm3 movlps [edi + ecx*4 + 24], xmm4 movhps [edi + ebx*4 + 24], xmm3 movhps [edi + edx*4 + 24], xmm4 ;# Second hydrogen Z forces for 4 j particles ;# Just load the four Z coords into one reg. each movss xmm4, [edi + eax*4 + 32] movss xmm5, [edi + ebx*4 + 32] movss xmm6, [edi + ecx*4 + 32] movss xmm7, [edi + edx*4 + 32] ;# add what we have on the stack addss xmm4, [esp + nb302_fjzH2] addss xmm5, [esp + nb302_fjzH2b] addss xmm6, [esp + nb302_fjzH2c] addss xmm7, [esp + nb302_fjzH2d] ;# store back movss [edi + eax*4 + 32], xmm4 movss [edi + ebx*4 + 32], xmm5 movss [edi + ecx*4 + 32], xmm6 movss [edi + edx*4 + 32], xmm7 ;# should we do one more iteration? sub dword ptr [esp + nb302_innerk], 4 jl .nb302_single_check jmp .nb302_unroll_loop.nb302_single_check: add dword ptr [esp + nb302_innerk], 4 jnz .nb302_single_loop jmp .nb302_updateouterdata.nb302_single_loop: mov edx, [esp + nb302_innerjjnr] ;# pointer to jjnr[k] mov eax, [edx] add dword ptr [esp + nb302_innerjjnr], 4 mov esi, [ebp + nb302_pos] lea eax, [eax + eax*2] ;# fetch j coordinates xorps xmm3, xmm3 xorps xmm4, xmm4 xorps xmm5, xmm5 movss xmm3, [esi + eax*4] ;# jxO - - - movss xmm4, [esi + eax*4 + 4] ;# jyO - - - movss xmm5, [esi +eax*4 + 8] ;# jzO - - - movlps xmm6, [esi + eax*4 + 12] ;# xmm6 = jxH1 jyH1 - - movss xmm7, [esi + eax*4 + 20] ;# xmm7 = jzH1 - - - movhps xmm6, [esi + eax*4 + 24] ;# xmm6 = jxH1 jyH1 jxH2 jyH2 movss xmm2, [esi + eax*4 + 32] ;# xmm2 = jzH2 - - - ;# have all coords, time for some shuffling. shufps xmm6, xmm6, 216 ;# constant 11011000 ;# xmm6 = jxH1 jxH2 jyH1 jyH2 unpcklps xmm7, xmm2 ;# xmm7 = jzH1 jzH2 - - movaps xmm0, [esp + nb302_ixO] movaps xmm1, [esp + nb302_iyO] movaps xmm2, [esp + nb302_izO] movlhps xmm3, xmm6 ;# xmm3 = jxO 0 jxH1 jxH2 shufps xmm4, xmm6, 228 ;# constant 11100100 ;# xmm4 = jyO 0 jyH1 jyH2 shufps xmm5, xmm7, 68 ;# constant 01000100 ;# xmm5 = jzO 0 jzH1 jzH2 ;# store all j coordinates in jO movaps [esp + nb302_jxO], xmm3 movaps [esp + nb302_jyO], xmm4 movaps [esp + nb302_jzO], xmm5 subps xmm0, xmm3 subps xmm1, xmm4 subps xmm2, xmm5 movaps [esp + nb302_dxOO], xmm0 movaps [esp + nb302_dyOO], xmm1 movaps [esp + nb302_dzOO], xmm2 mulps xmm0, xmm0 mulps xmm1, xmm1 mulps xmm2, xmm2 addps xmm0, xmm1 addps xmm0, xmm2 ;# have rsq in xmm0 ;# do invsqrt rsqrtps xmm1, xmm0 movaps xmm2, xmm1 mulps xmm1, xmm1 movaps xmm3, [esp + nb302_three] mulps xmm1, xmm0 subps xmm3, xmm1 mulps xmm3, xmm2 mulps xmm3, [esp + nb302_half] ;# rinv iO - j water movaps xmm1, xmm3 mulps xmm1, xmm0 ;# xmm1=r movaps xmm0, xmm3 ;# xmm0=rinv mulps xmm1, [esp + nb302_tsc] movhlps xmm2, xmm1 cvttps2pi mm6, xmm1 cvttps2pi mm7, xmm2 ;# mm6/mm7 contain lu indices cvtpi2ps xmm3, mm6 cvtpi2ps xmm2, mm7 movlhps xmm3, xmm2 subps xmm1, xmm3 ;# xmm1=eps movaps xmm2, xmm1 mulps xmm2, xmm2 ;# xmm2=eps2 pslld mm6, 2 pslld mm7, 2 movd ebx, mm6 movd ecx, mm7 psrlq mm7, 32 movd edx, mm7 ;# table indices in ebx,ecx,edx mov esi, [ebp + nb302_VFtab] movlps xmm5, [esi + ebx*4] movlps xmm7, [esi + ecx*4] movhps xmm7, [esi + edx*4] ;# got half coulomb table movaps xmm4, xmm5 shufps xmm4, xmm7, 136 ;# constant 10001000 shufps xmm5, xmm7, 221 ;# constant 11011101 movlps xmm7, [esi + ebx*4 + 8] movlps xmm3, [esi + ecx*4 + 8] movhps xmm3, [esi + edx*4 + 8] ;# other half of coulomb table movaps xmm6, xmm7 shufps xmm6, xmm3, 136 ;# constant 10001000 shufps xmm7, xmm3, 221 ;# constant 11011101 ;# coulomb table ready, in xmm4-xmm7 mulps xmm6, xmm1 ;# xmm6=Geps mulps xmm7, xmm2 ;# xmm7=Heps2 addps xmm5, xmm6 addps xmm5, xmm7 ;# xmm5=Fp mulps xmm7, [esp + nb302_two] ;# two*Heps2 xorps xmm3, xmm3 ;# fetch charges to xmm3 (temporary) movss xmm3, [esp + nb302_qqOO] movhps xmm3, [esp + nb302_qqOH] addps xmm7, xmm6 addps xmm7, xmm5 ;# xmm7=FF mulps xmm5, xmm1 ;# xmm5=eps*Fp addps xmm5, xmm4 ;# xmm5=VV mulps xmm5, xmm3 ;# vcoul=qq*VV mulps xmm3, xmm7 ;# fijC=FF*qq ;# at this point xmm5 contains vcoul and xmm3 fijC addps xmm5, [esp + nb302_vctot] movaps [esp + nb302_vctot], xmm5 xorps xmm2, xmm2 mulps xmm3, [esp + nb302_tsc] subps xmm2, xmm3 mulps xmm0, xmm2 movaps xmm1, xmm0 movaps xmm2, xmm0 mulps xmm0, [esp + nb302_dxOO] mulps xmm1, [esp + nb302_dyOO] mulps xmm2, [esp + nb302_dzOO] ;# initial update for j forces xorps xmm3, xmm3 xorps xmm4, xmm4 xorps xmm5, xmm5 subps xmm3, xmm0 subps xmm4, xmm1 subps xmm5, xmm2 movaps [esp + nb302_fjxO], xmm3 movaps [esp + nb302_fjyO], xmm4 movaps [esp + nb302_fjzO], xmm5 addps xmm0, [esp + nb302_fixO] addps xmm1, [esp + nb302_fiyO] addps xmm2, [esp + nb302_fizO] movaps [esp + nb302_fixO], xmm0 movaps [esp + nb302_fiyO], xmm1 movaps [esp + nb302_fizO], xmm2 ;# done with i O Now do i H1 & H2 simultaneously first get i particle coords: movaps xmm0, [esp + nb302_ixH1] movaps xmm1, [esp + nb302_iyH1] movaps xmm2, [esp + nb302_izH1] movaps xmm3, [esp + nb302_ixH2] movaps xmm4, [esp + nb302_iyH2] movaps xmm5, [esp + nb302_izH2] subps xmm0, [esp + nb302_jxO] subps xmm1, [esp + nb302_jyO] subps xmm2, [esp + nb302_jzO] subps xmm3, [esp + nb302_jxO] subps xmm4, [esp + nb302_jyO] subps xmm5, [esp + nb302_jzO] movaps [esp + nb302_dxH1O], xmm0 movaps [esp + nb302_dyH1O], xmm1 movaps [esp + nb302_dzH1O], xmm2 movaps [esp + nb302_dxH2O], xmm3 movaps [esp + nb302_dyH2O], xmm4 movaps [esp + nb302_dzH2O], xmm5 mulps xmm0, xmm0 mulps xmm1, xmm1 mulps xmm2, xmm2 mulps xmm3, xmm3 mulps xmm4, xmm4 mulps xmm5, xmm5 addps xmm0, xmm1 addps xmm4, xmm3 addps xmm0, xmm2 ;# have rsqH1 in xmm0 addps xmm4, xmm5 ;# have rsqH2 in xmm4 ;# start with H1, save H2 data movaps [esp + nb302_rsqH2O], xmm4 ;# do invsqrt rsqrtps xmm1, xmm0 rsqrtps xmm5, xmm4 movaps xmm2, xmm1 movaps xmm6, xmm5 mulps xmm1, xmm1 mulps xmm5, xmm5 movaps xmm3, [esp + nb302_three] movaps xmm7, xmm3 mulps xmm1, xmm0 mulps xmm5, xmm4 subps xmm3, xmm1 subps xmm7, xmm5 mulps xmm3, xmm2 mulps xmm7, xmm6 mulps xmm3, [esp + nb302_half] ;# rinv H1 - j water mulps xmm7, [esp + nb302_half] ;# rinv H2 - j water ;# start with H1, save H2 data movaps [esp + nb302_rinvH2O], xmm7 movaps xmm1, xmm3 mulps xmm1, xmm0 ;# xmm1=r movaps xmm0, xmm3 ;# xmm0=rinv mulps xmm1, [esp + nb302_tsc] movhlps xmm2, xmm1 cvttps2pi mm6, xmm1 cvttps2pi mm7, xmm2 ;# mm6/mm7 contain lu indices cvtpi2ps xmm3, mm6 cvtpi2ps xmm2, mm7 movlhps xmm3, xmm2 subps xmm1, xmm3 ;# xmm1=eps movaps xmm2, xmm1 mulps xmm2, xmm2 ;# xmm2=eps2 ⌨️ 快捷键说明
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