COMPUTER SCIENCE ILLUMIN.-TEXT
7th Edition
ISBN: 9781284156010
Author: Dale
Publisher: Jones & Barlett
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Chapter 6, Problem 33E
Explanation of Solution
Consider the given instructions:
0001 D0 00 48
0004 F1 FC 16
Executing the first instruction:
Consider the first instruction “D0 00 48” stored in the address “0001”.
- Here, the hexadecimal value “D0” is an instruction and “00 48” is the operand.
- The binary equivalent of the instruction “D0” is “1101 0000”, which will be stored in the instruction specifier.
- In the instruction specifier, the first four bits refers the operation code, the fifth bit refers the register specifier, and the next three bits refers the addressing mode.
- The first four bits “1101” – Load byte into the “A” register.
- The fifth bit “0” – Indicates the “A” register (Accumulator).
- The next three bits “000” – Immediate addressing mode.
- The binary equivalent of the operand “00 48” is “0000 0000 0100 1000”, which will be stored in the operand specifier.
- Since the addressing mode is immediate, the first byte of the operand specifier is ignored and the second byte value will be stored into the accumulator.
- So, the second byte value “0100 1000” will be stored into the accumulator.
Thus, after the execution of the first instruction, the “A” register will contain the value “0100 1000”...
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Chapter 6 Solutions
COMPUTER SCIENCE ILLUMIN.-TEXT
Ch. 6 - Prob. 1ECh. 6 - Prob. 2ECh. 6 - Prob. 3ECh. 6 - Prob. 4ECh. 6 - Prob. 5ECh. 6 - Prob. 6ECh. 6 - Prob. 7ECh. 6 - Prob. 8ECh. 6 - Prob. 9ECh. 6 - Prob. 10E
Ch. 6 - Prob. 11ECh. 6 - Prob. 12ECh. 6 - Prob. 13ECh. 6 - Prob. 14ECh. 6 - Prob. 15ECh. 6 - Prob. 16ECh. 6 - Prob. 17ECh. 6 - Prob. 18ECh. 6 - Prob. 19ECh. 6 - Prob. 20ECh. 6 - Prob. 21ECh. 6 - Prob. 22ECh. 6 - Prob. 23ECh. 6 - Prob. 24ECh. 6 - Prob. 25ECh. 6 - Prob. 26ECh. 6 - Prob. 27ECh. 6 - Prob. 28ECh. 6 - Prob. 29ECh. 6 - Prob. 30ECh. 6 - Prob. 31ECh. 6 - Prob. 32ECh. 6 - Prob. 33ECh. 6 - Prob. 34ECh. 6 - Prob. 35ECh. 6 - Prob. 36ECh. 6 - Prob. 37ECh. 6 - Prob. 38ECh. 6 - Prob. 39ECh. 6 - Prob. 40ECh. 6 - Prob. 41ECh. 6 - Prob. 42ECh. 6 - Prob. 44ECh. 6 - Prob. 45ECh. 6 - Prob. 46ECh. 6 - Prob. 47ECh. 6 - Prob. 48ECh. 6 - Prob. 49ECh. 6 - Prob. 50ECh. 6 - Prob. 51ECh. 6 - Prob. 52ECh. 6 - Prob. 53ECh. 6 - Prob. 54ECh. 6 - Prob. 55ECh. 6 - Prob. 56ECh. 6 - Prob. 57ECh. 6 - Prob. 58ECh. 6 - Prob. 59ECh. 6 - Prob. 60ECh. 6 - Prob. 1TQCh. 6 - Prob. 2TQCh. 6 - Prob. 3TQCh. 6 - Prob. 4TQ
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