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Copy pathASMMatrixVectorMultOperations.pas
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ASMMatrixVectorMultOperations.pas
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// ###################################################################
// #### This file is part of the mathematics library project, and is
// #### offered under the licence agreement described on
// #### http://www.mrsoft.org/
// ####
// #### Copyright:(c) 2011, Michael R. . All rights reserved.
// ####
// #### Unless required by applicable law or agreed to in writing, software
// #### distributed under the License is distributed on an "AS IS" BASIS,
// #### WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// #### See the License for the specific language governing permissions and
// #### limitations under the License.
// ###################################################################
unit ASMMatrixVectorMultOperations;
// #######################################################
// #### special routines for matrix vector multiplications.
// #######################################################
interface
{$I 'mrMath_CPU.inc'}
{$IFNDEF x64}
procedure ASMMatrixVectMultT(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
procedure ASMMatrixVectMult(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
// routines with special input layouts: LineWidthV needs to be sizeof(double)
procedure ASMMatrixVectMultEvenAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
procedure ASMMatrixVectMultEvenUnAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
procedure ASMMatrixVectMultOddUnAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
function ASMMatrixVecDotMultUneven( x : PDouble; Y : PDouble; incX : NativeInt; incY : NativeInt; N : NativeInt) : Double; {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
function ASMMatrixVecDotMultUnAligned( x : PDouble; y : PDouble; N : NativeInt ) : double; {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
function ASMMatrixVecDotMultAligned( x : PDouble; y : PDouble; N : NativeInt ) : double; {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
// destlinewidth needs to be sizeof(double)!
// no speed gain agains amsmatrixVectMultT
procedure ASMMatrixVectMultTDestVec(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
// rank1 update: A = A + alpha*X*Y' where x and y are vectors. It's assumed that y is sequential
procedure ASMRank1UpdateSeq(A : PDouble; const LineWidthA : NativeInt; width, height : NativeInt;
X, Y : PDouble; incX, incY : NativeInt; alpha : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
procedure ASMRank1UpdateSeqAligned(A : PDouble; const LineWidthA : NativeInt; width, height : NativeInt;
X, Y : PDouble; incX, incY : NativeInt; alpha : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
// same as above but it's assumed that the vector y is non sequential
procedure ASMRank1UpdateNonSeq(A : PDouble; const LineWidthA : NativeInt; width, height : NativeInt;
X, Y : PDouble; incX, incY : NativeInt; alpha : double); {$IFDEF FPC} assembler; {$ELSE} register; {$ENDIF}
{$ENDIF}
implementation
{$IFNDEF x64}
procedure ASMMatrixVectMult(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
var iter : NativeInt;
aDestLineWidth : NativeInt;
asm
push ebx;
push esi;
push edi;
mov edi, width;
imul edi, -8;
mov iter, edi;
mov aDestLineWidth, edx;
// for the final multiplication
movhpd xmm6, beta;
movlpd xmm6, alpha;
// prepare for "Reverse loop indexing"
mov edx, LineWidthV;
mov esi, LineWidthMT;
// init for y := 0 to Height div 4 - 1 do
sub height, 4;
js @@foryloopend;
@@foryloop:
// init values: // unrolled loop - 4 times
xorpd xmm0, xmm0; // dest^ := 0;
xorpd xmm1, xmm1;
xorpd xmm2, xmm2;
xorpd xmm3, xmm3;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxloop:
movsd xmm4, [ebx];
movsd xmm5, [ecx];
mulsd xmm5, xmm4;
addsd xmm0, xmm5;
movsd xmm5, [ecx + esi];
mulsd xmm5, xmm4;
addsd xmm1, xmm5;
movsd xmm5, [ecx + 2*esi];
mulsd xmm5, xmm4;
addsd xmm2, xmm5;
add ecx, esi;
movsd xmm5, [ecx + 2*esi];
mulsd xmm5, xmm4;
addsd xmm3, xmm5;
sub ecx, esi;
add ebx, edx;
add ecx, 8;
add edi, 8;
jnz @@forxloop;
add ecx, iter; // undo increment
// calculate dest = beta*dest + alpha*xmm0
// -> 4 times since the loop is unrolled
movhpd xmm0, [eax];
mulpd xmm0, xmm6;
haddpd xmm0, xmm0;
movsd [eax], xmm0;
add eax, adestLineWidth;
add ecx, LineWidthMT;
movhpd xmm1, [eax];
mulpd xmm1, xmm6;
haddpd xmm1, xmm1;
movsd [eax], xmm1;
add eax, adestLineWidth;
add ecx, LineWidthMT;
movhpd xmm2, [eax];
mulpd xmm2, xmm6;
haddpd xmm2, xmm2;
movsd [eax], xmm2;
add eax, adestLineWidth;
add ecx, LineWidthMT;
movhpd xmm3, [eax];
mulpd xmm3, xmm6;
haddpd xmm3, xmm3;
movsd [eax], xmm3;
add eax, adestLineWidth;
add ecx, LineWidthMT;
sub height, 4;
jns @@foryloop; // jump not signed...
// ###########################################
// #### Remaining rows (max 4):
@@foryloopend:
add height, 4;
jz @@endmult;
sub ecx, iter;
@@foryshortloop:
// init values: // unrolled loop - 4 times
xorpd xmm0, xmm0; // dest^ := 0;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxshortloop:
movsd xmm4, [ebx];
mulsd xmm4, [ecx + edi];
addsd xmm0, xmm4;
add ebx, edx;
add edi, 8;
jnz @@forxshortloop;
// calculate dest = beta*dest + alpha*xmm0
movhpd xmm0, [eax];
mulpd xmm0, xmm6;
haddpd xmm0, xmm0;
movsd [eax], xmm0;
// next line
add eax, adestLineWidth;
add ecx, LineWidthMT;
dec height;
jnz @@foryshortloop;
@@endmult:
// epilog
pop edi;
pop esi;
pop ebx;
end;
procedure ASMMatrixVectMultEvenAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
var iter : NativeInt;
asm
push ebx;
push esi;
push edi;
mov edi, width;
imul edi, -8;
mov iter, edi;
// for the final multiplication
movhpd xmm6, beta;
movlpd xmm6, alpha;
// prepare for "Reverse loop indexing"
mov esi, LineWidthMT;
// init for y := 0 to Height div 4 - 1 do
sub height, 4;
js @@foryloopend;
@@foryloop:
// init values: // unrolled loop - 4 times
xorpd xmm0, xmm0; // dest^ := 0;
xorpd xmm1, xmm1;
xorpd xmm2, xmm2;
xorpd xmm3, xmm3;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxloop:
movapd xmm4, [ebx];
movapd xmm5, [ecx];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
movapd xmm5, [ecx + esi];
mulpd xmm5, xmm4;
addpd xmm1, xmm5;
movapd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm2, xmm5;
add ecx, esi;
movapd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm3, xmm5;
sub ecx, esi;
add ebx, 16;
add ecx, 16;
add edi, 16;
jnz @@forxloop;
add ecx, iter; // undo increment
// calculate dest = beta*dest + alpha*xmm0
// -> 4 times since the loop is unrolled
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm0;
movsd [eax], xmm0;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm1, xmm5;
mulpd xmm1, xmm6;
haddpd xmm1, xmm1;
movsd [eax], xmm1;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm2, xmm5;
mulpd xmm2, xmm6;
haddpd xmm2, xmm2;
movsd [eax], xmm2;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm3, xmm5;
mulpd xmm3, xmm6;
haddpd xmm3, xmm3;
movsd [eax], xmm3;
add eax, edx;
add ecx, LineWidthMT;
sub height, 4;
jns @@foryloop; // jump not signed...
// ###########################################
// #### Remaining rows (max 4):
@@foryloopend:
add height, 4;
jz @@endmult;
sub ecx, iter;
@@foryshortloop:
// init values:
xorpd xmm0, xmm0; // dest^ := 0;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxshortloop:
movapd xmm4, [ebx];
movapd xmm5, [ecx + edi];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
add ebx, 16;
add edi, 16;
jnz @@forxshortloop;
// calculate dest = beta*dest + alpha*xmm0
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm7;
movsd [eax], xmm0;
// next line
add eax, edx;
add ecx, LineWidthMT;
dec height;
jnz @@foryshortloop;
@@endmult:
// epilog
pop edi;
pop esi;
pop ebx;
end;
procedure ASMMatrixVectMultEvenUnAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
var iter : NativeInt;
asm
push ebx;
push esi;
push edi;
mov edi, width;
imul edi, -8;
mov iter, edi;
// for the final multiplication
movhpd xmm6, beta;
movlpd xmm6, alpha;
// prepare for "Reverse loop indexing"
mov esi, LineWidthMT;
// init for y := 0 to Height div 4 - 1 do
sub height, 4;
js @@foryloopend;
@@foryloop:
// init values: // unrolled loop - 4 times
xorpd xmm0, xmm0; // dest^ := 0;
xorpd xmm1, xmm1;
xorpd xmm2, xmm2;
xorpd xmm3, xmm3;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxloop:
movupd xmm4, [ebx];
movupd xmm5, [ecx];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
movupd xmm5, [ecx + esi];
mulpd xmm5, xmm4;
addpd xmm1, xmm5;
movupd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm2, xmm5;
add ecx, esi;
movupd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm3, xmm5;
sub ecx, esi;
add ebx, 16;
add ecx, 16;
add edi, 16;
jnz @@forxloop;
add ecx, iter; // undo increment
// calculate dest = beta*dest + alpha*xmm0
// -> 4 times since the loop is unrolled
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm0;
movsd [eax], xmm0;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm1, xmm5;
mulpd xmm1, xmm6;
haddpd xmm1, xmm1;
movsd [eax], xmm1;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm2, xmm5;
mulpd xmm2, xmm6;
haddpd xmm2, xmm2;
movsd [eax], xmm2;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm3, xmm5;
mulpd xmm3, xmm6;
haddpd xmm3, xmm3;
movsd [eax], xmm3;
add eax, edx;
add ecx, LineWidthMT;
sub height, 4;
jns @@foryloop; // jump not signed...
// ###########################################
// #### Remaining rows (max 4):
@@foryloopend:
add height, 4;
jz @@endmult;
sub ecx, iter;
@@foryshortloop:
// init values:
xorpd xmm0, xmm0; // dest^ := 0;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxshortloop:
movupd xmm4, [ebx];
movupd xmm5, [ecx + edi];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
add ebx, 16;
add edi, 16;
jnz @@forxshortloop;
// calculate dest = beta*dest + alpha*xmm0
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm7;
movsd [eax], xmm0;
// next line
add eax, edx;
add ecx, LineWidthMT;
dec height;
jnz @@foryshortloop;
@@endmult:
// epilog
pop edi;
pop esi;
pop ebx;
end;
procedure ASMMatrixVectMultOddUnAlignedVAligned(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
var iter : NativeInt;
asm
push ebx;
push esi;
push edi;
mov edi, width;
dec edi;
imul edi, -8;
mov iter, edi;
// for the final multiplication
movhpd xmm6, beta;
movlpd xmm6, alpha;
// prepare for "Reverse loop indexing"
mov esi, LineWidthMT;
// init for y := 0 to Height div 4 - 1 do
sub height, 4;
js @@foryloopend;
@@foryloop:
// init values: // unrolled loop - 4 times
xorpd xmm0, xmm0; // dest^ := 0;
xorpd xmm1, xmm1;
xorpd xmm2, xmm2;
xorpd xmm3, xmm3;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxloop:
movupd xmm4, [ebx];
movupd xmm5, [ecx];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
movupd xmm5, [ecx + esi];
mulpd xmm5, xmm4;
addpd xmm1, xmm5;
movupd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm2, xmm5;
add ecx, esi;
movupd xmm5, [ecx + 2*esi];
mulpd xmm5, xmm4;
addpd xmm3, xmm5;
sub ecx, esi;
add ebx, 16;
add ecx, 16;
add edi, 16;
jnz @@forxloop;
// last element handling
movsd xmm4, [ebx];
movsd xmm5, [ecx];
mulsd xmm5, xmm4;
addsd xmm0, xmm5;
movsd xmm5, [ecx + esi];
mulsd xmm5, xmm4;
addsd xmm1, xmm5;
movsd xmm5, [ecx + 2*esi];
mulsd xmm5, xmm4;
addsd xmm2, xmm5;
add ecx, esi;
movsd xmm5, [ecx + 2*esi];
mulsd xmm5, xmm4;
addsd xmm3, xmm5;
sub ecx, esi;
add ecx, iter; // undo increment
// calculate dest = beta*dest + alpha*xmm0
// -> 4 times since the loop is unrolled
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm0;
movsd [eax], xmm0;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm1, xmm5;
mulpd xmm1, xmm6;
haddpd xmm1, xmm1;
movsd [eax], xmm1;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm2, xmm5;
mulpd xmm2, xmm6;
haddpd xmm2, xmm2;
movsd [eax], xmm2;
add eax, edx;
add ecx, LineWidthMT;
movsd xmm5, [eax];
haddpd xmm3, xmm5;
mulpd xmm3, xmm6;
haddpd xmm3, xmm3;
movsd [eax], xmm3;
add eax, edx;
add ecx, LineWidthMT;
sub height, 4;
jns @@foryloop; // jump not signed...
// ###########################################
// #### Remaining rows (max 4):
@@foryloopend:
add height, 4;
jz @@endmult;
sub ecx, iter;
@@foryshortloop:
// init values:
xorpd xmm0, xmm0; // dest^ := 0;
mov ebx, v; // ebx = first vector element
mov edi, iter;
@@forxshortloop:
movupd xmm4, [ebx];
movupd xmm5, [ecx + edi];
mulpd xmm5, xmm4;
addpd xmm0, xmm5;
add ebx, 16;
add edi, 16;
jnz @@forxshortloop;
// handle last element
movsd xmm4, [ebx];
movsd xmm5, [ecx];
mulsd xmm5, xmm4;
addsd xmm0, xmm5;
// calculate dest = beta*dest + alpha*xmm0
movsd xmm5, [eax];
haddpd xmm0, xmm5;
mulpd xmm0, xmm6;
haddpd xmm0, xmm7;
movsd [eax], xmm0;
// next line
add eax, edx;
add ecx, LineWidthMT;
dec height;
jnz @@foryshortloop;
@@endmult:
// epilog
pop edi;
pop esi;
pop ebx;
end;
// optimized transposed function
// -> does 16 operations in one loop
// (basically an unrolled simd version)
procedure ASMMatrixVectMultT(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
// eax = dest, destLineWidth = edx, mt1 = ecx
var res0, res1, res2, res3,
res4, res5, res6, res7 : Array[0..1] of double;
aDestLineWidth : NativeInt;
aMt1 : PDouble;
asm
push ebx;
push esi;
push edi;
// if width = 0 or height = 0 then exit
mov edi, width;
or edi, height;
cmp edi, 0;
je @@vecaddend;
mov aDestLineWidth, edx;
mov aMt1, ecx;
//mov eax, dest;
// for the final multiplication
movddup xmm6, alpha;
movddup xmm7, beta;
// prepare for loop
mov esi, LineWidthMT;
mov edx, LineWidthV;
// ###################################
// #### unrolled loop (4 times)
// init for y := 0 to Height div 4 - 1 do
sub width, 16;
js @@forxloopend;
@@forxloop:
xorpd xmm0, xmm0; // two elements
// clear out res
movupd res0, xmm0;
movupd res1, xmm0;
movupd res2, xmm0;
movupd res3, xmm0;
movupd res4, xmm0;
movupd res5, xmm0;
movupd res6, xmm0;
movupd res7, xmm0;
mov ebx, v; // ebx = first vector element
mov ecx, amt1;
mov edi, height;
@@foryloop:
movddup xmm3, [ebx];
movupd xmm4, [ecx];
movupd xmm0, res0;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res0, xmm0;
movupd xmm4, [ecx + 16];
movupd xmm0, res1;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res1, xmm0;
movupd xmm4, [ecx + 32];
movupd xmm0, res2;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res2, xmm0;
movupd xmm4, [ecx + 48];
movupd xmm0, res3;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res3, xmm0;
movupd xmm4, [ecx + 64];
movupd xmm0, res4;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res4, xmm0;
movupd xmm4, [ecx + 80];
movupd xmm0, res5;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res5, xmm0;
movupd xmm4, [ecx + 96];
movupd xmm0, res6;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res6, xmm0;
movupd xmm4, [ecx + 112];
movupd xmm0, res7;
mulpd xmm4, xmm3;
addpd xmm0, xmm4;
movupd res7, xmm0;
add ecx, esi;
add ebx, edx;
dec edi;
jnz @@foryloop;
// build result of 16 values:
mov ebx, adestLineWidth;
// first two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res0;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// second two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res1;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// third two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res2;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// forth two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res3;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// fith two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res4;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// sixth two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res5;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// seventh two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res6;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// eighth two
movsd xmm3, [eax];
movsd xmm4, [eax + ebx];
movlhps xmm3, xmm4;
movupd xmm0, res7;
mulpd xmm0, xmm6; // alpha*res
mulpd xmm3, xmm7; // dest*beta
addpd xmm3, xmm0;
movhlps xmm4, xmm3;
movsd [eax], xmm3;
movsd [eax + ebx], xmm4;
add eax, ebx;
add eax, ebx;
// next loop element
add amt1, 16*8; // inc(mt1, 16)
sub width, 16;
jns @@forxloop;
@@forxloopend:
// ###########################################
// elements that not fit into mod 32
add width, 16;
jz @@vecaddend;
@@forxshortloop:
xorpd xmm0, xmm0; // first two elements
mov ebx, v; // ebx = first vector element
mov ecx, amt1;
mov edi, height;
@@forshortyloop:
movsd xmm3, [ebx];
movsd xmm4, [ecx];
mulsd xmm4, xmm3;
addsd xmm0, xmm4;
add ecx, esi;
add ebx, edx;
dec edi;
jnz @@forshortyloop;
mulsd xmm0, xmm6; // alpha*res
movsd xmm3, [eax];
mulsd xmm3, xmm7; //dest*beta
addsd xmm0, xmm3;
movsd [eax], xmm0;
// next row
add eax, adestLineWidth;
add amt1, 8;
dec width;
jnz @@forxshortloop;
@@vecaddend:
// ###########################################
// #### epilog
pop edi;
pop esi;
pop ebx;
end;
{no speed gain}
procedure ASMMatrixVectMultTDestVec(dest : PDouble; destLineWidth : NativeInt; mt1, v : PDouble; LineWidthMT, LineWidthV : NativeInt; width, height : NativeInt; alpha, beta : double);
// eax = dest, edx = destLineWidth, ecx = mt1
var aDestLineWidth : NativeInt;
asm
push ebx;
push esi;
push edi;
mov aDestLineWidth, edx;
// if width = 0 or height = 0 then exit;
mov ebx, height;
or ebx, width;
jz @@vecaddend;
// for the final multiplication
movddup xmm6, alpha;
movddup xmm7, beta;
// prepare for loop
mov esi, LineWidthMT;
mov edx, LineWidthV;
// ###################################
// #### unrolled loop (4 times)
// init for y := 0 to Height div 16 - 1 do
sub width, 16;