Intel Architecture of Pentium III free download

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SWAR: MMX, SSE, SSE 2 Multiplatform Programming Relatore: dott. Matteo Roffilli [email protected] 22 November 2002 SWAR - Programmazione 1 multipiattaforma What's SWAR? SWAR = SIMD Within A Register SIMD = Single Instruction Multiple Data MMX,SSE,SSE2,Power3DNow = Intel\AMD implementation of SWAR 22 November 2002 SWAR - Programmazione 2 multipiattaforma Why SWAR? Enable parallel computing on commercial hardware Boost 2x your application at 0 cost Enjoy yourself learning assembler 22 November 2002 SWAR - Programmazione 3 multipiattaforma Why not SWAR? Hard low-level programming Require know out of assembler Not portable code (yet!) 22 November 2002 SWAR - Programmazione 4 multipiattaforma X86 Instruction Set Pentium I General Purpose Instruction X87 FPU Instruction System Instruction 22 November 2002 SWAR - Programmazione 5 multipiattaforma General Purpose Instruction Data transfer Binary integer arithmetic Decimal arithmetic Logic operations Shift and rotate Bit and byte operations Program control String Flag control Segment register operations 22 November 2002 SWAR - Programmazione 6 multipiattaforma X87 FPU Instruction Floating-point Integer Binary-coded decimal (BCD) operands 22 November 2002 SWAR - Programmazione 7 multipiattaforma SIMD Instruction SIMD: Single Instruction Multiple Data MMX , SSE and SSE2 instruction provides a group of instructions that perform SIMD operations on packed integer and/or packed floating- point data elements contained in the 64-bit MMX, the 128-bit XMM or 128-bit MMX registers. enables increased performance on a wide variety of multimedia and communications applications. 22 November 2002 SWAR - Programmazione 8 multipiattaforma What's new in Pentium II Pentium II=Pentium I + MMX MMX : MultiMedia Extensions 57 new instructions Eight 64-bit wide MMX registers Four new data types 22 November 2002 SWAR - Programmazione 9 multipiattaforma What's new in Pentium III Pentium III=Pentium II + SSE SSE : Streaming SIMD Extensions 70 new instructions three categories: SIMD-Floating Point New Media Instruction Streaming Memory Instruction 22 November 2002 SWAR - Programmazione 10 multipiattaforma The implementation of SSE SSE has 128-bit architectural width