x86

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How can I exchange the low 128 bits and high 128 bits in a 256 bit AVX (YMM) register

I am porting SSE SIMD code to use the 256 bit AVX extensions and cannot seem to find any instruction that will blend/shuffle/move the high 128 bits and the low 128 bits.[详细]

2023-03-30 21:40 分类：问答
How to setup x86 paging? Getting triple fault error

I have a toy kernel that I\'m working with running under x86 on bochs. When I enable paging, bochs resets with a triple fault error. It seems that it is every and any memory access which triggers the[详细]

2023-03-30 18:59 分类：问答
x87 FPOP and FCOM instructions - how do these work?

I\'ve been tasked with writing a simple application in mixed C/ASM that has to use math co开发者_Go百科processor.[详细]

2023-03-30 15:28 分类：问答
create x86 process under VISTAx64

I create a x86 process under WindowsServer2003 x64, ok, it work fine! but I try creating a x86 process under VISTA x64开发者_开发问答.[详细]

2023-03-29 22:39 分类：问答
disassembling, changing and assembling DLL file

I have a DLL which I have disassembled, and just to test that my project is going to work. I have tried assembling it again but without luck.[详细]

2023-03-29 17:26 分类：问答
How do I compile assembly code?

A good friend of mine found and gave me a book on intel 80x86 assembly coding.One rather large fact that t开发者_高级运维he books skips over is what program you should use to code with.Any suggestions[详细]

2023-03-29 11:50 分类：问答
SSE instructions in a buffer

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[详细]

2023-03-29 07:55 分类：问答
Add 32-bit words with saturation

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[详细]

2023-03-29 06:22 分类：问答
How to build x64 app on x86 win7 system, using windows sdk

Thanks for your attention. I\'m using x86 windows开发者_StackOverflow社区 sdk 7.1 to build x64 app. here is my build bat file:[详细]

2023-03-29 04:27 分类：问答
Microsoft Visual J#® 2.0 Redistributable Package for x64 and x86

Is there a version of Microsoft Visual J#® 2.0 Redistributable Package which will support both x86 and x64 platforms?[详细]

2023-03-28 17:45 分类：问答