📄 dctaan_xmm.asm
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pshufw mm1,mm4,0ech ; [ecx+16] to avoid MOB stall (7,1)->1
pinsrw mm1,[ecx+7*2-8],0 ; (7,0)->0 ; moved up
movq mmword ptr [ecx+16*3],mm5 ; out3: v47-v34
;pinsrw mm1,[ecx+16+7*2-8],1 ; (7,1)->1 ; moved
;insrw mm1,[ecx+16*3+7*2-8],3 ; (7,1)->3 ; moved up
; this 3 instructions are replacement for the pinsert to avoid MOB stall
pand mm5,msword ; keep only m.s. word (3)
pinsrw mm0,[ecx+16*2-8],2 ; (0,2)->2 ; moved up
pand mm1,notmsword ; keep all except m.s. word
pinsrw mm0,[ecx+16*3-8],3 ; (0,3)->3 ; moved up
por mm1,mm5
sub ecx,8 ; point back to the first 4 columns/rows.
; first 4 rows
;movq mm0, mmword ptr [ecx] ; v0 ; moved up
;pinsrw mm0,[ecx+16],1 ; (0,1)->1 ; moved up
;pinsrw mm0,[ecx+16*2],2 ; (0,2)->2 ; moved up
;pinsrw mm0,[ecx+16*3],3 ; (0,3)->3 ; moved up
;movq mm1, mmword ptr [ecx+16*7] ; v7
;pinsrw mm1,[ecx+7*2],0 ; (7,0)->0 ; moved up
;pinsrw mm1,[ecx+16+7*2],1 ; (7,1)->1 ; moved up
pinsrw mm1,[ecx+16*2+7*2],2 ; (7,1)->2
;pinsrw mm1,[ecx+16*3+7*2],3 ; (7,1)->3
movq mm2,mm0 ; duplicate v0
paddw mm0,mm1 ; v00: v0+v7
psubw mm2,mm1 ; v07: v0-v7
;movq mm1, mmword ptr [ecx+16] ; v1
pinsrw mm1,[ecx+1*2],0 ; (7,0)->0
pinsrw mm1,[ecx+16+1*2],1 ; (7,1)->1
pinsrw mm1,[ecx+16*2+1*2],2 ; (7,1)->2
pinsrw mm1,[ecx+16*3+1*2],3 ; (7,1)->3 ; moved up
;movq mm3, mmword ptr [ecx+16*6] ; v6
pinsrw mm3,[ecx+6*2],0 ; (7,0)->0
pinsrw mm3,[ecx+16+6*2],1 ; (7,1)->1
pinsrw mm3,[ecx+16*2+6*2],2 ; (7,1)->2
pinsrw mm3,[ecx+16*3+6*2],3 ; (7,1)->3
movq mm4,mm1 ; duplicate v1
paddw mm1,mm3 ; v01: v1+v6
psubw mm4,mm3 ; v06: v1-v6
;movq mm3, mmword ptr [ecx+16*2] ; v2
pinsrw mm3,[ecx+2*2],0 ; (7,0)->0
pinsrw mm3,[ecx+16+2*2],1 ; (7,1)->1
pinsrw mm3,[ecx+16*2+2*2],2 ; (7,1)->2
pinsrw mm3,[ecx+16*3+2*2],3 ; (7,1)->3
;movq mm5, mmword ptr [ecx+16*5] ; v5
pinsrw mm5,[ecx+5*2],0 ; (7,0)->0
pinsrw mm5,[ecx+16+5*2],1 ; (7,1)->1
pinsrw mm5,[ecx+16*2+5*2],2 ; (7,1)->2
pinsrw mm5,[ecx+16*3+5*2],3 ; (7,1)->3
movq mm6,mm3 ; duplicate v2
paddw mm3,mm5 ; v02: v2+v5
psubw mm6,mm5 ; v05: v2-v5
;movq mm5, mmword ptr [ecx+16*3] ; v3
pinsrw mm5,[ecx+3*2],0 ; (7,0)->0
pinsrw mm5,[ecx+16+3*2],1 ; (7,1)->1
pinsrw mm5,[ecx+16*2+3*2],2 ; (7,1)->2
pinsrw mm5,[ecx+16*3+3*2],3 ; (7,1)->3
;movq mm7, mmword ptr [ecx+16*4] ; v4
pinsrw mm7,[ecx+4*2],0 ; (7,0)->0
pinsrw mm7,[ecx+16+4*2],1 ; (7,1)->1
pinsrw mm7,[ecx+16*2+4*2],2 ; (7,1)->2
pinsrw mm7,[ecx+16*3+4*2],3 ; (7,1)->3
movq mmword ptr scratch1,mm7 ; scratch1: v4 ;
movq mm7,mm5 ; duplicate v3
paddw mm5,scratch1 ; v03: v3+v4
psubw mm7,scratch1 ; v04: v3-v4
movq mmword ptr scratch2,mm5 ; scratch2: v03
movq mm5,mm0 ; mm5: v00
movq mmword ptr scratch3,mm3 ; scratc3: v02
movq mm3,mm1 ; duplicate v01
paddw mm1,scratch3 ; v11: v01+v02
psubw mm3,scratch3 ; v12: v01-v02
movq mmword ptr scratch4,mm6 ; scratc4: v05
paddw mm0,scratch2 ; v10: v00+v03
psubw mm5,scratch2 ; v13: v00-v03
movq mm6,mm0 ; duplicate v10
paddw mm0,mm1 ; v10+v11
psubw mm6,mm1 ; v10-v11
movq mmword ptr [edx],mm0 ; out0: v10+v11
movq mmword ptr [edx+16*4],mm6 ; out4: v10-v11
movq mm0,mm4 ; mm0: v06
paddw mm4,scratch4 ; v15: v05+v06
paddw mm0,mm2 ; v16: v07+v06
pmulhw mm4,mmword ptr WA3 ; v35': WA3*v15
psllw mm4,16-NSHIFT ; v35: compensate the coeefient scale
movq mm6,mm4 ; duplicate v35
paddw mm4,mm2 ; v45: v07+v35
psubw mm2,mm6 ; v47: v07-v35
paddw mm3,mm5 ; v22: v12+v13
pmulhw mm3,mmword ptr WA1 ; v32': WA3*v15
psllw mm3,16-NSHIFT ; v32: compensate the coeefient scale
movq mm6,mm5 ; duplicate v13
paddw mm5,mm3 ; v13+v32
psubw mm6,mm3 ; v13-v32
movq mmword ptr [edx+16*2],mm5 ; out2: v13+v32
movq mmword ptr [edx+16*6],mm6 ; out6: v13-v32
paddw mm7,scratch4 ; v14n: v04+v05
movq mm5,mm0 ; duplicate v16
psubw mm0,mm7 ; va1: v16-v14n
pmulhw mm5,mmword ptr WA4 ; v36'': v16*WA4
pmulhw mm7,mmword ptr WA2 ; v34'': v14n*WA2
pmulhw mm0,mmword ptr WA5 ; va0': va1*WA5
psllw mm5,16-WA4_SHIFT ; v36: compensate the coeefient scale. Note that WA$ is scaled one bit less
psllw mm7,16-NSHIFT ; v34: compensate the coeefient scale
;psllw mm0,16-WA5_SHIFT
psubw mm5,mm0 ; v36': v36''-va0'
psubw mm7,mm0 ; v34': v34''-va0'
movq mm0,mm4 ; duplicate v45
paddw mm4,mm5 ; v45+v36
psubw mm0,mm5 ; v45-v36
movq mmword ptr [edx+16*1],mm4 ; out1: v45+v36
movq mmword ptr [edx+16*7],mm0 ; out7: v45-v36
movq mm5,mm2 ; duplicate v47
paddw mm2,mm7 ; v47+v34
psubw mm5,mm7 ; v47-v34
movq mmword ptr [edx+16*5],mm2 ; out5: v47+v34
movq mmword ptr [edx+16*3],mm5 ; out3: v47-v34
; second 4 rows
add ecx,16*4 ; source - point to the second 4 rows.
add edx,8 ; destination - point to the second 4 columns (transposed)
movq mm0, mmword ptr [ecx] ; v0
pinsrw mm0,[ecx+16],1 ; (0,1)->1
pinsrw mm0,[ecx+16*2],2 ; (0,2)->2
pinsrw mm0,[ecx+16*3],3 ; (0,3)->3
;movq mm1, mmword ptr [ecx+16*7] ; v7
pinsrw mm1,[ecx+7*2],0 ; (7,0)->0
pinsrw mm1,[ecx+16+7*2],1 ; (7,1)->1
pinsrw mm1,[ecx+16*2+7*2],2 ; (7,1)->2
pinsrw mm1,[ecx+16*3+7*2],3 ; (7,1)->3
movq mm2,mm0 ; duplicate v0
paddw mm0,mm1 ; v00: v0+v7
psubw mm2,mm1 ; v07: v0-v7
;movq mm1, mmword ptr [ecx+16] ; v1
pinsrw mm1,[ecx+1*2],0 ; (7,0)->0
pinsrw mm1,[ecx+16+1*2],1 ; (7,1)->1
pinsrw mm1,[ecx+16*2+1*2],2 ; (7,1)->2
pinsrw mm1,[ecx+16*3+1*2],3 ; (7,1)->3
;movq mm3, mmword ptr [ecx+16*6] ; v6
pinsrw mm3,[ecx+6*2],0 ; (7,0)->0
pinsrw mm3,[ecx+16+6*2],1 ; (7,1)->1
pinsrw mm3,[ecx+16*2+6*2],2 ; (7,1)->2
pinsrw mm3,[ecx+16*3+6*2],3 ; (7,1)->3
movq mm4,mm1 ; duplicate v1
paddw mm1,mm3 ; v01: v1+v6
psubw mm4,mm3 ; v06: v1-v6
;movq mm3, mmword ptr [ecx+16*2] ; v2
pinsrw mm3,[ecx+2*2],0 ; (7,0)->0
pinsrw mm3,[ecx+16+2*2],1 ; (7,1)->1
pinsrw mm3,[ecx+16*2+2*2],2 ; (7,1)->2
pinsrw mm3,[ecx+16*3+2*2],3 ; (7,1)->3
;movq mm5, mmword ptr [ecx+16*5] ; v5
pinsrw mm5,[ecx+5*2],0 ; (7,0)->0
pinsrw mm5,[ecx+16+5*2],1 ; (7,1)->1
pinsrw mm5,[ecx+16*2+5*2],2 ; (7,1)->2
pinsrw mm5,[ecx+16*3+5*2],3 ; (7,1)->3
movq mm6,mm3 ; duplicate v2
paddw mm3,mm5 ; v02: v2+v5
psubw mm6,mm5 ; v05: v2-v5
;movq mm5, mmword ptr [ecx+16*3] ; v3
pinsrw mm5,[ecx+3*2],0 ; (7,0)->0
pinsrw mm5,[ecx+16+3*2],1 ; (7,1)->1
pinsrw mm5,[ecx+16*2+3*2],2 ; (7,1)->2
pinsrw mm5,[ecx+16*3+3*2],3 ; (7,1)->3
;movq mm7, mmword ptr [ecx+16*4] ; v4
pinsrw mm7,[ecx+4*2],0 ; (7,0)->0
pinsrw mm7,[ecx+16+4*2],1 ; (7,1)->1
pinsrw mm7,[ecx+16*2+4*2],2 ; (7,1)->2
pinsrw mm7,[ecx+16*3+4*2],3 ; (7,1)->3
movq mmword ptr scratch1,mm7 ; scratch1: v4 ;
movq mm7,mm5 ; duplicate v3
paddw mm5,scratch1 ; v03: v3+v4
psubw mm7,scratch1 ; v04: v3-v4
movq mmword ptr scratch2,mm5 ; scratch2: v03
movq mm5,mm0 ; mm5: v00
movq mmword ptr scratch3,mm3 ; scratc3: v02
movq mm3,mm1 ; duplicate v01
paddw mm1,scratch3 ; v11: v01+v02
psubw mm3,scratch3 ; v12: v01-v02
movq mmword ptr scratch4,mm6 ; scratc4: v05
paddw mm0,scratch2 ; v10: v00+v03
psubw mm5,scratch2 ; v13: v00-v03
movq mm6,mm0 ; duplicate v10
paddw mm0,mm1 ; v10+v11
psubw mm6,mm1 ; v10-v11
movq mmword ptr [edx],mm0 ; out0: v10+v11
movq mmword ptr [edx+16*4],mm6 ; out4: v10-v11
movq mm0,mm4 ; mm0: v06
paddw mm4,scratch4 ; v15: v05+v06
paddw mm0,mm2 ; v16: v07+v06
pmulhw mm4,mmword ptr WA3 ; v35': WA3*v15
psllw mm4,16-NSHIFT ; v35: compensate the coeefient scale
movq mm6,mm4 ; duplicate v35
paddw mm4,mm2 ; v45: v07+v35
psubw mm2,mm6 ; v47: v07-v35
paddw mm3,mm5 ; v22: v12+v13
pmulhw mm3,mmword ptr WA1 ; v32': WA3*v15
psllw mm3,16-NSHIFT ; v32: compensate the coeefient scale
movq mm6,mm5 ; duplicate v13
paddw mm5,mm3 ; v13+v32
psubw mm6,mm3 ; v13-v32
movq mmword ptr [edx+16*2],mm5 ; out2: v13+v32
movq mmword ptr [edx+16*6],mm6 ; out6: v13-v32
paddw mm7,scratch4 ; v14n: v04+v05
movq mm5,mm0 ; duplicate v16
psubw mm0,mm7 ; va1: v16-v14n
pmulhw mm5,mmword ptr WA4 ; v36'': v16*WA4
pmulhw mm7,mmword ptr WA2 ; v34'': v14n*WA2
pmulhw mm0,mmword ptr WA5 ; va0': va1*WA5
psllw mm5,16-WA4_SHIFT ; v36: compensate the coeefient scale. Note that WA$ is scaled one bit less
psllw mm7,16-NSHIFT ; v34: compensate the coeefient scale
;psllw mm0,16-WA5_SHIFT
psubw mm5,mm0 ; v36': v36''-va0'
psubw mm7,mm0 ; v34': v34''-va0'
movq mm0,mm4 ; duplicate v45
paddw mm4,mm5 ; v45+v36
psubw mm0,mm5 ; v45-v36
movq mmword ptr [edx+16*1],mm4 ; out1: v45+v36
movq mmword ptr [edx+16*7],mm0 ; out7: v45-v36
movq mm5,mm2 ; duplicate v47
paddw mm2,mm7 ; v47+v34
psubw mm5,mm7 ; v47-v34
movq mmword ptr [edx+16*5],mm2 ; out5: v47+v34
movq mmword ptr [edx+16*3],mm5 ; out3: v47-v34
;emms
ret 0
_dct8x8aan_xmm ENDP
_TEXT ENDS
END
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