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The program execution of Figure 1.4 is described in the text using six steps. Expand this description to show the use of the MAR and MBR.

The program execution of Figure 1.4 is described in the text using six steps. Expand this description to show the use of the MAR and MBR.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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The program execution of Figure 1.4 is described in the text using six steps. Expand this description to show the use of the MAR and MBR.

Fetch stage Execute stage CPU registers 300 PC Memory 300I9 4 0 301 5 9 4 1 302 29 4I Memory 300 9 40 AC 301 5 9 41 1940 IR 302 2 9 4 1 CPU registers 301 PC 0 0 0 3 AC 1940 IR 940 0 00 3 941 0 00 2 940 0 00 3- 941 0 0 02 Step I Step 2 Memory 300 I9 40 301 5 9 4 I 302 29 4 I CPU registers 301 PC 0003 AC 301 5 9 4 1 5941 IR 302 2 9 4 I CPU registers 302 PC 000 5AC 5941 IR Memory 300 I 9 40 940 0 0 0 3 941 0 00 2 3+2= 5- 940 0 00 3 941 0 002 Step 3 Memory 300 I 9 4 0 301 59 4 I 302 29 4 Step 4 Memory 300 1 9 4 0 CPU registers 30 2 PC 0 0 0 5 AC 301 5 9 4 I 294 1 IR 302 2 9 4 CPU registers 303 PC 0 0 0 5 AC 2941IR 940 0 0 03 941 0 00 2 940 0 003 941 0 0 0 5 Step 5 Step 6 Figure 1.4 Example of Program Execution (contents of memory and registers in hexadecimal)
Transcribed Image Text:Fetch stage Execute stage CPU registers 300 PC Memory 300I9 4 0 301 5 9 4 1 302 29 4I Memory 300 9 40 AC 301 5 9 41 1940 IR 302 2 9 4 1 CPU registers 301 PC 0 0 0 3 AC 1940 IR 940 0 00 3 941 0 00 2 940 0 00 3- 941 0 0 02 Step I Step 2 Memory 300 I9 40 301 5 9 4 I 302 29 4 I CPU registers 301 PC 0003 AC 301 5 9 4 1 5941 IR 302 2 9 4 I CPU registers 302 PC 000 5AC 5941 IR Memory 300 I 9 40 940 0 0 0 3 941 0 00 2 3+2= 5- 940 0 00 3 941 0 002 Step 3 Memory 300 I 9 4 0 301 59 4 I 302 29 4 Step 4 Memory 300 1 9 4 0 CPU registers 30 2 PC 0 0 0 5 AC 301 5 9 4 I 294 1 IR 302 2 9 4 CPU registers 303 PC 0 0 0 5 AC 2941IR 940 0 0 03 941 0 00 2 940 0 003 941 0 0 0 5 Step 5 Step 6 Figure 1.4 Example of Program Execution (contents of memory and registers in hexadecimal)
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