System Software – SIC Program to set ALPHA equal to Product of Beta and Gamma

Published on June 26, 2016 by abundantcode

Filed under Assembly Language

Last modified June 26, 2016

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Problem Statement

Write a sequence of instructions for SIC to set ALPHA equal to the product of BETA and GAMMA. Assume that ALPHA, BETA, and GAMMA are defined as in Fig. 1.3(a).

Solution

Line Number(ac) Code Description
1 LDA BETA Load the value of BETA in Accumulator
2 MUL GAMMA Multiply the value of GAMMA with accumulator and the result will be stored in Accumulator
3 STA ALPHA Store the result of Accumulator to ALPHA
4 ALPHA RESW 1 Reserve 1 word for ALPHA
5 BETA RESW 1 Reserve 1 word for BETA
6 GAMMA RESW 1 Reserve 1 word for GAMM

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