Question

Write a MARIE assembly program to read two different positive numbers from the keyboard and output the smaller number to the screen.

Answer 1

Answer:
The desired MARIE assembly program is given below:

            / program to get x, y from user
            / if x < y print x
            / else if x > y print y
            / else just print x
            org            100
            input                           / get value for x from user
            store          X
            input                           / get value for y from user
            store          Y
Test1, subt            X               / acc = y - x
           skipcond     000            / if negative then x is bigger, we can skip further tests
           jump           Test2
           load            Y                / got here if x bigger, so print y, then done
           output
           jump           Done

Test2, skipcond     800             / if positive then y bigger, skip further tests
           jump           XYEq          / if here then equal, go to XYeq print section
           load            X              /got here if y bigger, print x, then done
           output
           jump           Done
XYEq, load            X                 / just print x, then done
           output

Done, halt

X,        dec            0                  / default value for x
Y,        dec            0                   / default value for y

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