sse instructions c

SSE Introduction I learned the skills of 3D game programming masters, but I used a technology called "single command, multi-data (SIMD)" to compile a 3D mathematical library. Using this method, operations such as vector computing and matrix transformation that we often use can be accelerated many times. This time, we also used this technology when learning about 3D engine development. SIMD is a technology name, not a specific tool. To implement this t

SSE technology OverviewIntel's single-instruction, multi-data stream extension (SSE, Streaming SIMD Extensions) technology can effectively enhance the capabilities of CPU floating point operations. Visual Studio. NET 2003 provides support for SSE instruction set programming, allowing you to directly use SSE commands wi

From: http://hi.baidu.com/sige_online/blog/item/d8fdfffc8f0033f7fd037fac.html Undoubtedly, the math library is the cornerstone of graphics programs and one of the keys to the efficiency of graphics program running. An excellent mathematical library can make the graphics program run more smoothly, or even hundreds of times faster. Sometimes replacing a division operation will multiply the efficiency, for example, replacing operator/in the vector by multiplying 1/OP /. Of course, the more advance

When compiling the SSE optimization instruction with Qtcreator, the following error occurred. Inlining failed in call to Always_inline ' __m128i _mm_packus_epi32 (__m128i, __m128i) ': Target specific option mismatch_MM_PACKUS_EPI32 (__m128i __x, __m128i __y)^The reason for this error is that the corresponding SSE option was not specified at compile time.Workaround: Locate the

above mentioned factors have some bad effects on the portability of intrinsic function code, but porting the code containing intrinsic function is undoubtedly a lot easier than inline assembly. In addition, the 64-bit platform no longer supports inline assembly.2. SSE intrinsicVS and GCC support SSE directive Intrinsic,sse have several different versions, the co

OverviewTraditional Web pages are browser to the server "query" data, but in many cases, the most effective way is the server to the browser "send" data. For example, whenever a new e-mail message is received, the server sends a "notification" to the browser, which is more efficient than the browser's time-to-server query (polling).The server sends the event (Server-sent events, SSE) to solve this problem, and proposes a new API, deployed on the Event

1. PrefaceWeb-side IM technology is not easy to implement due to limitations in browser design, and there are roughly 4 main web-end instant Messaging solutions: Traditional Ajax short polling, Comet technology, WebSocket Technology, SSE (Server-sent Events). This article will briefly introduce the principles of these 4 technologies, and point out their similarities and differences, advantages and disadvantages, and so on.2. OverviewThe 1996 IETF HTTP

With SSE directives, you first need to understand this class of instructions for initializing loading data and saving the Scratchpad's data to memory.We know that most SSE directives are used by XMM0 to XMM8 registers, and before use, it is necessary to load data from memory into these registers.1. Load series, for loading data, from memory to Scratchpad__m128 _mm_load_ss (float *p) __m128 _mm_load_ps (flo

'] Turnoverratio= data['Turnoverratio'] Preclose= data['Preclose'] Open= data['Open'] SQL='INSERT INTO stockmarket (Date,stockcode,stockname,close,high,low,amplituderatio,turnoverratio,preclose,open) VALUES ("'+STR (date) +'","'+str (Stockcode) +'","'+str (StockName) +'","'+STR (Close) +'","'+str (High) +'","'+STR (Low) +'","'+str (Amplituderatio) +'","'+str (Turnoverratio) +'","'+str (Preclose) +'","'+STR (Open) +'")' Print(SQL)if 'None' inchsql:Print('Jump this data') Else:

HTML5 data push SSE principle and application development, html5sse JavaScript expresses behavior and CSS expresses appearance. Note that HTML not only expresses structure (logical structure), but also expresses content (data itself). When data needs to be updated, the structure does not need to be updated, it is this kind of demand that does not change the organizational structure that only changes the data, which promotes the generation of data pull

When you use the intrinsics function to operate the SIMD Instruction Set (MMX/SSE/avx, etc.), the SIMD data types of different lengths are displayed, which are divided into multiple compression formats. Therefore, I have designed a set of SIMD variable naming rules to effectively improve code readability. 1. Introduction to SIMD Data Types SIMD data types include --_ M64: 64-bit tightening INTEGER (MMX )._ M128: 128-bit tightening single precision (

References --Intel 64 and IA-32 ubuntures software developer's Manual Volume 2 (2a, 2b 2c): Instruction Set Reference, A-Z. December 2011. http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-instruction-set-reference-manual-325383.htmlIntel processor identification and the cpuid instruction. January 2011. http://developer.intel.com/content/www/us/en/processors/processor-identification-cpuid-instruction-note.htmlAmd64 architecture programm

HTML5 has a server-sent Events (SSE) feature that allows the server to push data to the client. (usually called data push). Let's take a look at the simple timing diagram of traditional Web application communication:Now, most of the Web app has Ajax, and that's what it looks like:Based on data push, when the data source has new data, it is sent to the client immediately, without waiting for the client to request. These new data may be the most news, t