What is a unit with a moving point?
A moving point unit is a functional block of a computer processor that performs arithmetic operations with a movable point. The unit, which is also known as FPU abbreviations, can also be a physically separated coprocessor. FPU usually approaches data via the same addressing modes as the rest of the processor and generally includes its own registers. The processor uses FPU to calculate trigonometric, logarithmic and basic arithmetic functions with moving floating points. It also uses the FPU to load, store and compare numbers into several integer and data types with a movable point. For example, most microprocessors produced by Intel Corporation and Motorola have not included one. Many reduced processors for calculating instructions (RISC) and built -in controllers have no one. These chips include an arithmetic logic unit (ALU) to perform basic integer arithmetic and bit logical functions. Fmatematics for Loating Point VŠak is processed by an external coprocessor or a software library.
Most processors and software systems implement the Standard Institute of Electrical and Electronic Engineers (IEEE) for moving value operations. The IEEE-754 standard was first released in 1985 and in 2008 it was expanded to include other types of data. It defines several types of data of the whole and with a movable value, each with its own accuracy, representation and numerical range. It also defines many arithmetic operations, rounding methods and manipulation, with the exception of the Zero Division. Whether mathematics is carried out by a unit with a movable value or not, standard standard IEEE results with floating points.
In addition to adding, subtraction, multiplication and division, the unit with a movable point can perform many other operations. These often include scaling, the second square root and logarithmic calculations. Sine, a cable are also providedalso Osine and partial thorough trigonometric functions. The numbers of the whole number and the floating point can be compared with the FPU and converted from one accuracy to another. They can also be rounded in both directions and stored directly in the main processor memory.
FPU graphical processor may include frequently repeated functions common to three -dimensional rotation or object animation. Many built -in controllers are designed with processors optimized for digital signal processing (DSP). They can be used in audio and communication applications and may contain, for example, FPUs that are good for fast Fourier transformation (FFT). Cryptographic processors often include FPU for high -speed calculation of mathematical encryption algorithms. General processors with multiple cores may also include one unit with a movable point for each regular processor core.