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 have this snippet of code: @combinerows: mov esi,eax and edi,Row1Mask and ebx,Row2Mask or ebx,edi //NewQ:= (Row1 and Row1Mask) or (Row2 and Row2Mask);
I am trying to optimize a small piece of code with SSE intrinsics (I am a complete beginner on the topic), but I am a little stuck on the use of conditionals.
Let me preface this with.. I have extremely limited experience with ASM, and even less with SIMD. But it happens that I have the following MMX/SSE optimised code, that I would like to port across to
I am trying to optimize some arithmetic by using the MMX and SSE instruction sets with inline assembly. However, I have been unable to find good references for 开发者_运维百科the timings and usages of
I have an inline assembler loop that cumulatively adds elements from an int32 data array with MMX instructions. In particular, it uses the fact that the MMX registers can accommodate 16 int32s to calc
I\'m writing a highly parallel application that\'s multithreaded. I\'ve already got an SSE accelerated thr开发者_高级运维ead class written. If I were to write an MMX accelerated thread class, then run
I am curious, do new compilers use some extra features built into new CPUs such as MMX SSE,3DNow! and so?
Where can I find information about common SIMD tricks? I have an instruction set and know, how to write non-tricky SIMD code, but I know, SIMD now is much more powerful. It can hold complex conditiona
Given a vector of bytes with length multiple of 8, how can I, using mmx instructions开发者_运维技巧, convert all 2\'s to 5\'s, for example?
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