The plus (+) indicates a more advanced problem and the asterisk (*) indicates that a solut...

The plus (+) indicates a more advanced problem and the asterisk (*) indicates that a solution is available on the Companion Website for the text.

 *Repeat Problem for

All operands are initially in memory. The operand order for divide, DIV, is quotient, dividend, divisor.

Problem

Based on operations illustrated in Section 9-2, write a program to evaluate the arithmetic expression

Make effective use of the registers to minimize the number of MOVE or LD instructions where possible.

(a) Assume a register-to-register architecture with three-address instructions. The operand order for subtraction, SUB, is difference, minuend, subtrahend.

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(b) Assume a memory-to-memory architecture with two-address instructions.

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(c) Assume a single-accumulator computer with one-address instructions.