Titlebook: Design of Arithmetic Units for Digital Computers; John B. Gosling Book 1980 John B. Gosling 1980 Calc.Calculation.Likelihood.Mathematica.a

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arthroscopy

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Multiplication,s it occurs as frequently as addition and subtraction combined. As in the previous chapter, this chapter will discuss the procedures involved in multiplication of two binary ‘bit patterns’, and will not discuss the problems of handling signed numbers. Signed multiplication will be described in chapt

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Floating Point Operation,ers. If the numbers are regarded as integers, then it is necessary to scale many problems in order to represent fractions. The scale used by astronomers and atomic physicists to represent length and mass, for instance, would be totally different. Even so, some 9 decimal digits are not sufficient for

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Other Functions of the Arithmetic Unit,s, in which the result is a word, the bits of which are a logical combination of the corresponding bits of the operands. Among these are shift functions, in which the bits of a word are reordered in a specified fashion. Usually the bits remain in the same order, but changed in position; the end bits

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Barrister

Mathematical Functions and Array Processing,ded for most machines. This chapter will discuss some additional functions that the unit could perform. Most of these are only useful for machines intended primarily for mathematical applications, though some, such as vector operations, have been shown to have applications in data processing as well

Working-Memory

Lecture Notes in Computer ScienceUp to this point all numbers handled have been positive by implication, though the discussion of multiplication has indicated the possibility of negative partial products. It is clear, however, that a computer designed to solve mathematical problems must be capable of handling negative numbers.

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Jean Goubault-Larrecq,Julien OlivainDivision is the fourth of the basic arithmetic operations, and occurs much less frequently than any of the others. As a result, only the largest computers normally contain a separate hardware divider. Division can be implemented using either subtraction or multiplication, and frequently makes use of the hardware provided for these operations.

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