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The values 10 to 15 are not used. [2] Unpacked (8 bits) In unpacked decimal representation a decimal digit is stored in one byte. The values 10 to 255 are not used. The upper nibble is ignored, and can either be zero, or the leading-nibble for the ASCII character (value 3). [2]
On processor architectures with variable-length instruction sets [6] (such as Intel's x86 processor family) it is, within the limits of the control-flow resynchronizing phenomenon known as the Kruskal count, [7] [6] [8] [9] [10] sometimes possible through opcode-level programming to deliberately arrange the resulting code so that two code paths ...
An ELF file has two views: the program header shows the segments used at run time, whereas the section header lists the set of sections.. In computing, the Executable and Linkable Format [2] (ELF, formerly named Extensible Linking Format) is a common standard file format for executable files, object code, shared libraries, and core dumps.
Optimized for 64-bit arithmetic. MurmurHash64B (64-bit, x86)—A 64-bit version optimized for 32-bit platforms. It is not a true 64-bit hash due to insufficient mixing of the stripes. [10] The person who originally found the flaw [clarification needed] in MurmurHash2 created an unofficial 160-bit version of MurmurHash2 called MurmurHash2_160. [11]
The maximum unsigned 8 bit value (2 8 − 1) 127 7F The maximum signed 8 bit value (2 7 − 1) −128 80 Minimum signed 8 bit value −32,768 8000 Minimum signed 16 bit value −2,147,483,648 8000 0000 Minimum signed 32 bit value −9,223,372,036,854,775,808 8000 0000 0000 0000 Minimum signed 64 bit value
In the x86 assembly language, the TEST instruction performs a bitwise AND on two operands. The flags SF, ZF, PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0, while AF flag is undefined. There are 9 different opcodes for the TEST instruction depending on the type and size of the operands. It can compare ...
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 1999. It introduces two new operating modes: 64-bit mode and compatibility mode, along with a new four-level paging mechanism.
[6]: 2 [7]: 14 This includes an opcode, two source fields, and one destination field, [8]: 7 with the ability to hold a 32-bit immediate value. [ 6 ] [ 7 ] : 14 The Pentium Pro is able to detect parity errors in its internal microcode ROM and report these via the Machine Check Architecture .