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AMD Opteron, the first CPU to introduce the x86-64 extensions in April 2003 The five-volume set of the x86-64 Architecture Programmer's Manual, as published and distributed by AMD in 2002. x86-64 (also known as x64, x86_64, AMD64, and Intel 64) [note 1] is a 64-bit extension of the x86 instruction set architecture first announced in
AMD introduces its Opteron and Athlon 64 processor lines, based on its AMD64 architecture which is the first x86-based 64-bit processor architecture. Apple also ships the 64-bit "G5" PowerPC 970 CPU produced by IBM. Intel maintains that its Itanium chips would remain its only 64-bit processors. 2004
Intel soon adopted AMD's architectural extensions under the name IA-32e, later using the name EM64T and finally using Intel 64. Microsoft and Sun Microsystems/Oracle also use term "x64", while many Linux distributions, and the BSDs also use the "amd64" term. Microsoft Windows, for example, designates its 32-bit versions as "x86" and 64-bit ...
An x86-64 processor acts identically to an IA-32 processor when running in real mode or protected mode, which are supported modes when the processor is not in long mode.. A bit in the CPUID extended attributes field informs programs in real or protected modes if the processor can go to long mode, which allows a program to detect an x86-64 processor.
AMD K6: 1997 6 Superscalar, branch prediction, speculative execution, out-of-order execution, register renaming [b] AMD K6-III: 1999 Branch prediction, speculative execution, out-of-order execution [1] AMD K7: 1999 Out-of-order execution, branch prediction, Harvard architecture: AMD K8: 2003 64-bit, integrated memory controller, 16 byte ...
This is an incomplete comparison of assemblers.Some assemblers are components of a compiler system for a high-level programming language and may have limited or no usable functionality outside of the compiler system.
It was AMD's primary consumer CPU, and primarily competed with Intel's Pentium 4, especially the Prescott and Cedar Mill core revisions. The Athlon 64 is AMD's first K8, eighth-generation processor core for desktop and mobile computers. [4] Despite being natively 64-bit, the AMD64 architecture is backward-compatible with 32-bit x86 instructions ...
The AMD64 extensions from AMD (originally called x86-64) added a further eight registers XMM8 through XMM15, and this extension is duplicated in the Intel 64 architecture. There is also a new 32-bit control/status register, MXCSR. The registers XMM8 through XMM15 are accessible only in 64-bit operating mode.