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Computer Engineering
A word in main memory may contain an instruction or a binary number in twos complement notation. Demonstrate that this instruction repertoire is reasonably complete by specifying how the following operations can be programmed: (a) Data transfer: location X to accumulator, accumulator to location x (b) Addition: Add contents of location X to accumulator (c) Conditional branch (d) Logical OR

A word in main memory may contain an instruction or a binary number in twos complement notation. Demonstrate that this instruction repertoire is reasonably complete by specifying how the following operations can be programmed: (a) Data transfer: location X to accumulator, accumulator to location x (b) Addition: Add contents of location X to accumulator (c) Conditional branch (d) Logical OR

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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A word in main memory may contain an instruction or a binary number in twos complement notation. Demonstrate that this instruction repertoire is reasonably complete by specifying how the following operations can be programmed:

(a) Data transfer: location X to accumulator, accumulator to location x

(b) Addition: Add contents of location X to accumulator

(c) Conditional branch

(d) Logical OR

(e) I/O operations

Consider a hypothetical computer with an instruction set of only two n- bit instructions. The first bit specifies the opcodes, and the remaining bits specify one of the 2"-' n-bit words of main memory. The two instructions are as follows:
Transcribed Image Text:Consider a hypothetical computer with an instruction set of only two n- bit instructions. The first bit specifies the opcodes, and the remaining bits specify one of the 2"-' n-bit words of main memory. The two instructions are as follows:
SUBS Subtract the contents of location X from the accumulator, and store the result in location X and the accumulator. JUMP Place address X in the program counter.
Transcribed Image Text:SUBS Subtract the contents of location X from the accumulator, and store the result in location X and the accumulator. JUMP Place address X in the program counter.
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