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Does anybody have a working algorithm or full copy of code that optimizes matrix multiplication in the x86 assembly language?

I know a basic algorithm in C:
for (i=0;i<BLOCK_SIZE;i++)
for (j=0;j<BLOCK_SIZE;j++)
for (k=0;k<BLOCK_SIZE;k++)
c[i*MAX+j] += a[i*MAX+k]*b[k*MAX+j];

but, does anybody know a faster one?