Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Find first set

Index Find first set

In software, find first set (ffs) or find first one is a bit operation that, given an unsigned machine word, identifies the least significant index or position of the bit set to one in the word. [1]

65 relations: Addison-Wesley, Advanced Micro Devices, Analog Devices, ARM architecture, ARM Cortex-M, Atmel, AVR32, Binary GCD algorithm, Binary logarithm, Binary search algorithm, Bit array, Bit Manipulation Instruction Sets, Bitwise operation, Blackfin, C (programming language), Clang, Collatz conjecture, CUDA, Data compression, De Bruijn sequence, DEC Alpha, Discrete uniform distribution, Division algorithm, Exponential distribution, Floating-point arithmetic, FreeBSD, GeForce 400 series, Glasgow Haskell Compiler, GNU C Library, GNU Compiler Collection, Gray code, Hacker's Delight, Hamming weight, History of the Berkeley Software Distribution, IBM POWER instruction set architecture, Instruction set architecture, Intel 80386, Intel C++ Compiler, Itanium, Linux kernel, List of ARM microarchitectures, LLVM, Loop unrolling, Microsoft Visual Studio, MIPS architecture, Morgan Kaufmann Publishers, Motorola 68020, Newton's method, PDP-10, Pearson Education, ..., Perfect hash function, POSIX, Power Architecture, PowerPC, Prentice Hall, Priority queue, Software, Space–time tradeoff, SPARC, Tower of Hanoi, Two's complement, VAX, Word (computer architecture), X86, Z/Architecture. Expand index (15 more) »

Addison-Wesley

Addison-Wesley is a publisher of textbooks and computer literature.

New!!: Find first set and Addison-Wesley · See more »

Advanced Micro Devices

Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets.

New!!: Find first set and Advanced Micro Devices · See more »

Analog Devices

Analog Devices, Inc., also known as ADI or Analog, is an American multinational semiconductor company specializing in data conversion and signal processing technology, headquartered in Norwood, Massachusetts.

New!!: Find first set and Analog Devices · See more »

ARM architecture

ARM, previously Advanced RISC Machine, originally Acorn RISC Machine, is a family of reduced instruction set computing (RISC) architectures for computer processors, configured for various environments.

New!!: Find first set and ARM architecture · See more »

ARM Cortex-M

The ARM Cortex-M is a group of 32-bit RISC ARM processor cores licensed by Arm Holdings.

New!!: Find first set and ARM Cortex-M · See more »

Atmel

Atmel Corporation is an American-based designer and manufacturer of semiconductors, founded in 1984.

New!!: Find first set and Atmel · See more »

AVR32

The AVR32 is a 32-bit RISC microcontroller architecture produced by Atmel.

New!!: Find first set and AVR32 · See more »

Binary GCD algorithm

The binary GCD algorithm, also known as Stein's algorithm, is an algorithm that computes the greatest common divisor of two nonnegative integers.

New!!: Find first set and Binary GCD algorithm · See more »

Binary logarithm

In mathematics, the binary logarithm is the power to which the number must be raised to obtain the value.

New!!: Find first set and Binary logarithm · See more »

Binary search algorithm

In computer science, binary search, also known as half-interval search,logarithmic search, or binary chop, is a search algorithm that finds the position of a target value within a sorted array.

New!!: Find first set and Binary search algorithm · See more »

Bit array

A bit array (also known as bit map, bit set, bit string, or bit vector) is an array data structure that compactly stores bits.

New!!: Find first set and Bit array · See more »

Bit Manipulation Instruction Sets

Bit Manipulation Instructions Sets (BMI sets) are extensions to the x86 instruction set architecture for microprocessors from Intel and AMD.

New!!: Find first set and Bit Manipulation Instruction Sets · See more »

Bitwise operation

In digital computer programming, a bitwise operation operates on one or more bit patterns or binary numerals at the level of their individual bits.

New!!: Find first set and Bitwise operation · See more »

Blackfin

The Blackfin is a family of 16- or 32-bit microprocessors developed, manufactured and marketed by Analog Devices.

New!!: Find first set and Blackfin · See more »

C (programming language)

C (as in the letter ''c'') is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations.

New!!: Find first set and C (programming language) · See more »

Clang

Clang is a compiler front end for the programming languages C, C++, Objective-C, Objective-C++, OpenMP, OpenCL, and CUDA.

New!!: Find first set and Clang · See more »

Collatz conjecture

The Collatz conjecture is a conjecture in mathematics that concerns a sequence defined as follows: start with any positive integer n. Then each term is obtained from the previous term as follows: if the previous term is even, the next term is one half the previous term.

New!!: Find first set and Collatz conjecture · See more »

CUDA

CUDA is a parallel computing platform and application programming interface (API) model created by Nvidia.

New!!: Find first set and CUDA · See more »

Data compression

In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.

New!!: Find first set and Data compression · See more »

De Bruijn sequence

In combinatorial mathematics, a de Bruijn sequence of order n on a size-k alphabet A is a cyclic sequence in which every possible length-n string on A occurs exactly once as a substring (i.e., as a contiguous subsequence).

New!!: Find first set and De Bruijn sequence · See more »

DEC Alpha

Alpha, originally known as Alpha AXP, is a 64-bit reduced instruction set computing (RISC) instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC), designed to replace their 32-bit VAX complex instruction set computer (CISC) ISA.

New!!: Find first set and DEC Alpha · See more »

Discrete uniform distribution

In probability theory and statistics, the discrete uniform distribution is a symmetric probability distribution whereby a finite number of values are equally likely to be observed; every one of n values has equal probability 1/n.

New!!: Find first set and Discrete uniform distribution · See more »

Division algorithm

A division algorithm is an algorithm which, given two integers N and D, computes their quotient and/or remainder, the result of division.

New!!: Find first set and Division algorithm · See more »

Exponential distribution

No description.

New!!: Find first set and Exponential distribution · See more »

Floating-point arithmetic

In computing, floating-point arithmetic is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision.

New!!: Find first set and Floating-point arithmetic · See more »

FreeBSD

FreeBSD is a free and open-source Unix-like operating system descended from Research Unix via the Berkeley Software Distribution (BSD).

New!!: Find first set and FreeBSD · See more »

GeForce 400 series

Serving as the introduction of Fermi, the GeForce 400 Series is a series of graphics processing units developed by Nvidia.

New!!: Find first set and GeForce 400 series · See more »

Glasgow Haskell Compiler

Glasgow Haskell Compiler, less commonly known as The Glorious Glasgow Haskell Compilation System or simply GHC, is an open source native code compiler for the functional programming language Haskell.

New!!: Find first set and Glasgow Haskell Compiler · See more »

GNU C Library

The GNU C Library, commonly known as glibc, is the GNU Project's implementation of the C standard library.

New!!: Find first set and GNU C Library · See more »

GNU Compiler Collection

The GNU Compiler Collection (GCC) is a compiler system produced by the GNU Project supporting various programming languages.

New!!: Find first set and GNU Compiler Collection · See more »

Gray code

The reflected binary code (RBC), also known just as reflected binary (RB) or Gray code after Frank Gray, is an ordering of the binary numeral system such that two successive values differ in only one bit (binary digit).

New!!: Find first set and Gray code · See more »

Hacker's Delight

Hacker's Delight is a software algorithm book by Henry S. Warren, Jr.

New!!: Find first set and Hacker's Delight · See more »

Hamming weight

The Hamming weight of a string is the number of symbols that are different from the zero-symbol of the alphabet used.

New!!: Find first set and Hamming weight · See more »

History of the Berkeley Software Distribution

The History of the Berkeley Software Distribution begins in the 1970s.

New!!: Find first set and History of the Berkeley Software Distribution · See more »

IBM POWER instruction set architecture

The IBM POWER ISA is a reduced instruction set computer (RISC) instruction set architecture (ISA) developed by IBM.

New!!: Find first set and IBM POWER instruction set architecture · See more »

Instruction set architecture

An instruction set architecture (ISA) is an abstract model of a computer.

New!!: Find first set and Instruction set architecture · See more »

Intel 80386

The Intel 80386, also known as i386 or just 386, is a 32-bit microprocessor introduced in 1985.

New!!: Find first set and Intel 80386 · See more »

Intel C++ Compiler

Intel C++ Compiler, also known as icc or icl, is a group of C and C++ compilers from Intel available for Windows, Mac, Linux, FreeBSD and Intel-based Android devices.

New!!: Find first set and Intel C++ Compiler · See more »

Itanium

Itanium is a family of 64-bit Intel microprocessors that implement the Intel Itanium architecture (formerly called IA-64).

New!!: Find first set and Itanium · See more »

Linux kernel

The Linux kernel is an open-source monolithic Unix-like computer operating system kernel.

New!!: Find first set and Linux kernel · See more »

List of ARM microarchitectures

This is a list of microarchitectures based on the ARM family of instruction sets designed by ARM Holdings and 3rd parties, sorted by version of the ARM instruction set, release and name.

New!!: Find first set and List of ARM microarchitectures · See more »

LLVM

The LLVM compiler infrastructure project is a "collection of modular and reusable compiler and toolchain technologies" used to develop compiler front ends and back ends.

New!!: Find first set and LLVM · See more »

Loop unrolling

Loop unrolling, also known as loop unwinding, is a loop transformation technique that attempts to optimize a program's execution speed at the expense of its binary size, which is an approach known as space–time tradeoff.

New!!: Find first set and Loop unrolling · See more »

Microsoft Visual Studio

Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.

New!!: Find first set and Microsoft Visual Studio · See more »

MIPS architecture

MIPS (an acronym for Microprocessor without Interlocked Pipeline Stages) is a reduced instruction set computer (RISC) instruction set architecture (ISA)Price, Charles (September 1995).

New!!: Find first set and MIPS architecture · See more »

Morgan Kaufmann Publishers

Morgan Kaufmann Publishers is a Burlington, Massachusetts (San Francisco, California until 2008) based publisher specializing in computer science and engineering content.

New!!: Find first set and Morgan Kaufmann Publishers · See more »

Motorola 68020

The Motorola 68020 ("sixty-eight-oh-twenty", "sixty-eight-oh-two-oh" or "six-eight-oh-two-oh") is a 32-bit microprocessor from Motorola, released in 1984.

New!!: Find first set and Motorola 68020 · See more »

Newton's method

In numerical analysis, Newton's method (also known as the Newton–Raphson method), named after Isaac Newton and Joseph Raphson, is a method for finding successively better approximations to the roots (or zeroes) of a real-valued function.

New!!: Find first set and Newton's method · See more »

PDP-10

The PDP-10 is a mainframe computer family manufactured by Digital Equipment Corporation (DEC) from 1966 into the 1980s.

New!!: Find first set and PDP-10 · See more »

Pearson Education

Pearson Education (see also Pearson PLC) is a British-owned education publishing and assessment service to schools and corporations, as well as directly to students.

New!!: Find first set and Pearson Education · See more »

Perfect hash function

In computer science, a perfect hash function for a set is a hash function that maps distinct elements in to a set of integers, with no collisions.

New!!: Find first set and Perfect hash function · See more »

POSIX

The Portable Operating System Interface (POSIX) is a family of standards specified by the IEEE Computer Society for maintaining compatibility between operating systems.

New!!: Find first set and POSIX · See more »

Power Architecture

Power Architecture is a registered trademark for similar reduced instruction set computing (RISC) instruction sets for microprocessors developed and manufactured by such companies as IBM, Freescale/NXP, AppliedMicro, LSI, Teledyne e2v and Synopsys.

New!!: Find first set and Power Architecture · See more »

PowerPC

PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computing (RISC) instruction set architecture (ISA) created by the 1991 Apple–IBM–Motorola alliance, known as AIM.

New!!: Find first set and PowerPC · See more »

Prentice Hall

Prentice Hall is a major educational publisher owned by Pearson plc.

New!!: Find first set and Prentice Hall · See more »

Priority queue

In computer science, a priority queue is an abstract data type which is like a regular queue or stack data structure, but where additionally each element has a "priority" associated with it.

New!!: Find first set and Priority queue · See more »

Software

Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.

New!!: Find first set and Software · See more »

Space–time tradeoff

A space–time or time–memory trade-off in computer science is a case where an algorithm or program trades increased space usage with decreased time.

New!!: Find first set and Space–time tradeoff · See more »

SPARC

SPARC, for Scalable Processor Architecture, is a reduced instruction set computing (RISC) instruction set architecture (ISA) originally developed by Sun Microsystems.

New!!: Find first set and SPARC · See more »

Tower of Hanoi

The Tower of Hanoi (also called the Tower of Brahma or Lucas' Tower and sometimes pluralized) is a mathematical game or puzzle.

New!!: Find first set and Tower of Hanoi · See more »

Two's complement

Two's complement is a mathematical operation on binary numbers, best known for its role in computing as a method of signed number representation.

New!!: Find first set and Two's complement · See more »

VAX

VAX is a discontinued instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC) in the mid-1970s.

New!!: Find first set and VAX · See more »

Word (computer architecture)

In computing, a word is the natural unit of data used by a particular processor design.

New!!: Find first set and Word (computer architecture) · See more »

X86

x86 is a family of backward-compatible instruction set architectures based on the Intel 8086 CPU and its Intel 8088 variant.

New!!: Find first set and X86 · See more »

Z/Architecture

z/Architecture, initially and briefly called ESA Modal Extensions (ESAME), is IBM's 64-bit instruction set architecture implemented by its mainframe computers.

New!!: Find first set and Z/Architecture · See more »

Redirects here:

Bit Scan Forward, Bit Scan Reverse, Bit scan, Bit scan forward, Bit scan instruction, Bit scan reverse, BitScanForward, BitScanReverse, Builtin clz, Builtin ctz, Builtin ffs, CNTLZ, CNTLZD, CNTLZW, Cntlz, Cntlzd, Cntlzw, Count leading zeros, Count trailing zeros, Find First Set, Find first one, Find first zero, Find least significant 1, Find least significant one, Find most significant 1, Find most significant one, Jump if Find First One, LS1B, LZCNT, Leading zero count, Least significant 1 bit, Least significant one bit, Lzcnt, MS1B, Most significant 1 bit, Most significant one bit, Number of leading zeros, Number of trailing zeros, Trailing zero count.

References

[1] https://en.wikipedia.org/wiki/Find_first_set

OutgoingIncoming
Hey! We are on Facebook now! »