2. Answer the question 2. Consider the instruction Load 200. Given the following memory and register R1 contents:Memory120200400600800350600900400250Assume R1 is implied in the indexed addressing mode. Determine the actual value loadedinto the accumulator (AC) for each of the following addressing modes:ModeImmediateDirectIndirectIndexedR1 600Value Loaded into AC

Answered: Consider the instruction Load 200.…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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2. Answer the question

2. Consider the instruction Load 200. Given the following memory and register R1 contents:
Memory
120
200
400
600
800
350
600
900
400
250
Assume R1 is implied in the indexed addressing mode. Determine the actual value loaded
into the accumulator (AC) for each of the following addressing modes:
Mode
Immediate
Direct
Indirect
Indexed
R1 600
Value Loaded into AC

Expert Solution

Step 1

Instruction is: LOAD 200

The instruction format is:

OP code | Address

Now, based on the addressing mode, the address field contains different values.

Addressing mode:- Immediate addressing mode

When the addressing mode is immediate then the value inside the address field is the actual data to be retrieved. So, address field = 200 = data. So, 200 is loaded into AC.

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