Using the Accelerate framework from OSX, you get access to 4-way SIMD functionality where you can operate on vector floats, vector ints and vector bools. It gives you 4-way divisions e.g. and also 4-w
Is开发者_Python百科 there an official reference listing the operation of the SSE intrinsic functions for GCC, i.e. the functions in the <*mmintrin.h> header files?As well as Intel\'s vol.2 PDF m
If I have an instruction开发者_如何学C buffer for x86 is there an easy way to check if an instruction is an SSE instruction without having to check if the opcode is within the ranges for the SSE instr
Do you know any way to add with saturation 32-bit signed words using MMX/SSE assembler instructions? I can find开发者_开发知识库 8/16 bits versions but no 32-bit ones.You can emulate saturated signed
I\'m now working in a small optimisation of a basic dot product function, by using SSE instructions in visual studio.
I have a very simple program to multiply four numbers. It works fine when each of them is 10000 but does not if I change them to 10001. The result
In most tutorials or code snippets on the net one sees the following: float *arr= (float*) _aligned_malloc(length * sizeof(float), 16);
Given a vector of three (or four) floats. What is the fastest way to sum them? Is SSE (movaps, shuffle, add, movd) always faster than x87? Are the horizontal-add instructions in SSE3 worth it?
Libraries such as intel-MKL or amd-ACML provide easier interface to SIMD operations on vectors, but I want to chain several functions together. Are there readily available libraries where I can regist
I have to calculate cr开发者_开发知识库c32 on a lot of files, and also huge files (several GB). I tried several algo found on the web like Damieng or this one, and it works, but it is slow (more than
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