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Preliminary Report on EASICODE

Lookup NU author(s): Professor Brian Randell

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Abstract

EASICODE is a translation programme intended for use in most cases where a normal fixed-point D.E.U.C.E. programme could be written. It adopts the convention that all numbers have modulus less than one. When greater accuracy is required, the programmer must resort to other techniques such as floating-point arithmetic (which is used in most Interpretive Schemes.) Experience gained at Whetstone shows that such accuracy is seldom required and so EASICODE Mark I is designed to work in fixed-point. Early tests indicate that an Easicode programme is two or three times slower than a conventional D.E.U.C.E. programme but several times faster than floating-point interpretive schemes. Consequently it will frequently be worth while to use EASICODE in preference to hand-writing a programme in view of the speed of preparation obtained with EASICODE.


Publication metadata

Author(s): Kelly MJ, Randell B

Publication type: Report

Publication status: Published

Series Title:

Year: 1958

Print publication date: 01/09/1958

Source Publication Date: September 1958

Report Number: W/AT 216

Institution: Atomic Power Division, English Electric Co.

Place Published: Whetstone, Leicester


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