System Software – SIC/XE Program to multiply two arrays

Problem Statement

Assume that ALPHA and BETA are the two arrays of 100 words. Another array of GAMMA elements are obtained by multiplying the corresponding ALPHA element by 4 and adding the corresponding BETA elements.

Solution

Line Number	Code	Comments
1	LDS #3
2	LDT #300
3	LDX #0
4	ADDLOOP LDA ALPHA, X
5	MUL #4
6	ADD BETA, X
7	STA GAMMA, X
8	ADDR S, X
9	COMPR X, T
10	JLT ADDLOOP
11	ALPHA RESW 100
12	BETA RESW 100
13	GAMMA RESW 100