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64-bit computing
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In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide. Also, 64-bit central processing units (CPU) and arithmetic logic units (ALU) are those that are based on processor registers, address buses, or data buses of that size. A computer that uses such a processor is a 64-bit computer.
Hex dump of the section table in a 64-bit Portable Executable File. A 64-bit word can be expressed as a sequence of 16 hexadecimal digits.
Hex dump of the section table in a 64-bit Portable Executable File. A 64-bit word can be expressed as a sequence of 16 hexadecimal digits.
X86-64
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x86-64 is a 64-bit version of the x86 instruction set, first announced in 1999. It introduced two new modes of operation, 64-bit mode and compatibility mode, along with a new 4-level paging mode.
AMD Opteron, the first CPU to introduce the x86-64 extensions in April 2003
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
The five-volume set of the x86-64 Architecture Programmer's Manual, as published and distributed by AMD in 2002