QUESTION ONE (1) 1. The hypothetical machine has two I/O instructions: 0011 = Load AC from I/O 0111 = Store AC to I/O In these cases, the 12-bit address identifies a particular I/O device. List the steps for every execution for the following program and illustrate using table that explain the process below : a. Load AC from device 5. b. Add contents of memory location 940. c. Store AC to device 6. d. Assume that the next value retrieved from device 5 is 3 and that location 940 contains a value of 2.
QUESTION ONE (1) 1. The hypothetical machine has two I/O instructions: 0011 = Load AC from I/O 0111 = Store AC to I/O In these cases, the 12-bit address identifies a particular I/O device. List the steps for every execution for the following program and illustrate using table that explain the process below : a. Load AC from device 5. b. Add contents of memory location 940. c. Store AC to device 6. d. Assume that the next value retrieved from device 5 is 3 and that location 940 contains a value of 2.
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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QUESTION ONE (1)
1. The hypothetical machine has two I/O instructions:
0011 = Load AC from I/O
0111 = Store AC to I/O
In these cases, the 12-bit address identifies a particular I/O device.
List the steps for every execution for the following program and illustrate using table that explain the process below :
a. Load AC from device 5.
b. Add contents of memory location 940.
c. Store AC to device 6.
d. Assume that the next value retrieved from device 5 is 3 and that location 940 contains a value of 2.
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