the MMX instruction set speeds up multimedia applications – by processing multiple data objects in parallel with a single instruction. Given the data types the MMX instruction set supports, you can process up to eight byte objects in parallel, four …

2024年5月8日 · MMX (MultiMedia Extension) is a technology used to boost the multimedia capabilities of personal computers, particularly for audio and video processing, 3D graphics, and image manipulation. Integrated into Intel's Pentium and subsequent processors, MMX technology employs SIMD (Single Instruction, Multiple Data) techniques, which allow a single ...

MMX technology introduces four new data types: three packed data types (bytes, words and doublewords, respectively being 8, 16 and 32 bits wide for each data element) and a new 64-bit entity. Each element within the packed data types is an independent fixed-point integer.

MMX gives us a few new mov instructions to facilitate getting data into and out of MMX registers. These new instructions are movd and movq . movd (MOVe Doubleword) can move either a 32-bit register or memory location into or out of the bottom 32 bits of an MMX register.

MMX™ technology extends the Intel Architecture (IA), the industry’s leading general purpose processor architecture, to provide the benefits of SIMD for media applications. MMX technology adopts the SIMD approach in a way that makes it coexist …

2004年10月26日 · 具有MMX指令集支持的处理器有八个64位的寄存器，每一个寄存器可以存放8个字节（byte）、4个字 (word)或2个双字 (double-word)。 MMX技术同时提供了一个MMX指令集，其中的指令可以可以把一个数值（其类型可以是字节、字或双字）加载到这些MMX寄存器中，在寄存器中进行算术或逻辑运算，然后把寄存器中的结果放回内存存储单元。 上面的例子采用MMX技术后的算法是这样的： 把这8个字节加载到MMX寄存器中. 通过一个CPU指令执行周期 …

2024年12月14日 · 使用mmx指令集进行音频解码，例如： - **并行处理**：mmx指令允许对音频帧内的多个样本值进行并行处理。 - **向量化**：通过使用MMX指令集，开发者可以将循环展开，每个指令处理多个数据，大大减少了执行时间。

The MMX instructions enable x86 processors to perform single-instruction, multiple-data(SIMD) operations on packed byte, word, doubleword, or quadword integer operands contained in memory, in MMX registers, or in general-purpose registers.

2020年4月16日 · MMX is a supplemental instruction set introduced by Intel in 1996. Most of the new instructions are "single instruction, multiple data" (SIMD), meaning that single instructions work with multiple pieces of data in parallel.

2014年11月25日 · You’ll begin your exploration of MMX technology by examining some sample programs that illustrate the basics of MMX programming. The first sample program that you’ll study illustrates how to perform packed integer addition using both byte- and word-sized integers.