
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:Using the MARIE computer assembly language, write a program that computes the following expression:
z ← (a * b) * (c* d) * e. The computer will read in the input values a, b, c, d, and e from the keyboard,
and the final result (z) has to be displayed. In addition, every time an input value is read in, it must be
validated by checking that the input is a positive number. If it is positive display the number on the
screen; otherwise display zero and end the program. Each time a multiplication of two numbers is needed,
it has to be done using a multiplication subroutine. Remember that the MARIE instruction set does not
have an instruction to execute multiplication, you must create a subroutine (function) that multiplies two
numbers and call it each time you need it. The program must be tested in the MARIE simulator.
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