(a) An instruction at address 021 in the basic computer has I=0, an operation code of the AND instruction, and an address part equal to 083 (all numbers are in hexadecimal). The memory word at address 083 contains the operand B8F2 and the content of AC is A937. Go over the instruction cycle and determine the contents of the following registers at the end of the execute phase: PC, AR, DR, AC, and IR. Repeat the problem six more times starting with an operation code of another memory- reference instruction.
(a) An instruction at address 021 in the basic computer has I=0, an operation code of the AND instruction, and an address part equal to 083 (all numbers are in hexadecimal). The memory word at address 083 contains the operand B8F2 and the content of AC is A937. Go over the instruction cycle and determine the contents of the following registers at the end of the execute phase: PC, AR, DR, AC, and IR. Repeat the problem six more times starting with an operation code of another memory- reference instruction.
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
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Transcribed Image Text:(a) An instruction at address 021 in the basic computer has I-0, an operation code of the AND
instruction, and an address part equal to 083 (all numbers are in hexadecimal). The memory word at
address 083 contains the operand B8F2 and the content of AC is A937. Go over the instruction cycle
and determine the contents of the following registers at the end of the execute phase: PC, AR, DR, AC,
and IR. Repeat the problem six more times starting with an operation code of another memory-
reference instruction.
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