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– equivalent to 1 "word" on 64-bit computers (Power, PA-RISC, Alpha, Itanium, SPARC, x86-64 PCs and Macintoshes). – the "word size" for 64-bit console systems including: Nintendo 64, PlayStation 2, PlayStation 3, Xbox 360. 80 bits (10 bytes) – size of an extended precision floating point number, for intermediate calculations that can be ...
The Cray X1 uses byte addressing with 64-bit addresses. It does not directly support memory accesses smaller than 64 bits, and such accesses must be emulated in software. The C compiler for the X1 was the first Cray compiler to support emulating 16-bit accesses. [1] The DEC Alpha uses byte addressing with 64-bit addresses. Early Alpha ...
The z/Architecture, which is the 64-bit member of that architecture family, continues to refer to 16-bit halfwords, 32-bit words, and 64-bit doublewords, and additionally features 128-bit quadwords. In general, new processors must use the same data word lengths and virtual address widths as an older processor to have binary compatibility with ...
The term 64-bit also describes a generation of computers in which 64-bit processors are the norm. 64 bits is a word size that defines certain classes of computer architecture, buses, memory, and CPUs and, by extension, the software that runs on them. 64-bit CPUs have been used in supercomputers since the 1970s (Cray-1, 1975) and in reduced ...
There are ARM processors that have mixed-endian floating-point representation for double-precision numbers: each of the two 32-bit words is stored as little-endian, but the most significant word is stored first. VAX floating point stores little-endian 16-bit words in big-endian order
takes registers of bytes A = [a 0 a 1 a 2...] and B = [b 0 b 1 b 2...] and replaces A with [a b0 a b1 a b2...]; except that it replaces the ith entry with 0 if the top bit of b i is set. PMULHRSW: Packed Multiply High with Round and Scale treat the 16-bit words in registers A and B as signed 16-bit fixed-point numbers between −1.00000000 and ...
Oregon’s undefeated season will carry on into the College Football Playoff. The No. 1 Ducks assured themselves of the top spot in the 12-team field with a 45-37 win over No. 3 Penn State in the ...
The byte, 8 bits, 2 nibbles, is possibly the most commonly known and used base unit to describe data size. The word is a size that varies by and has a special importance for a particular hardware context. On modern hardware, a word is typically 2, 4 or 8 bytes, but the size varies dramatically on older hardware.