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Most ISA's have an instruction that simply does nothing, called NOP, which is short for NO OPeration (the O is from either word). The instruction is fetched, decoded, and executed so the PC, IR, MAR, and MDR are changed as a result. However, NOP does not change the contents of the general purpose registers, memory, or even the condition codes. Additionally, NOP continues execution with the instruction right after the NOP. Which of the following LC-3 instructions could operate as a NOP? A.) 0000 000 000001100 [Select] B.) 1110 000 000000000 [Select] [Select] fails as a NOP works as a NOP

Most ISA's have an instruction that simply does nothing, called NOP, which is short for NO OPeration (the O is from either word). The instruction is fetched, decoded, and executed so the PC, IR, MAR, and MDR are changed as a result. However, NOP does not change the contents of the general purpose registers, memory, or even the condition codes. Additionally, NOP continues execution with the instruction right after the NOP. Which of the following LC-3 instructions could operate as a NOP? A.) 0000 000 000001100 [Select] B.) 1110 000 000000000 [Select] [Select] fails as a NOP works as a NOP

Database System Concepts
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
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Most ISA's have an instruction that simply does nothing, called NOP, which is short for NO OPeration (the O is from either word). The instruction is fetched, decoded, and executed so the PC, IR, MAR, and MDR are changed as a result. However, NOP does not change the contents of the general purpose registers, memory, or even the condition codes. Additionally, NOP continues execution with the instruction right after the NOP. Which of the following LC-3 instructions could operate as a NOP? A.) 0000 000 000001100 [Select] B.) 1110 000 000000000 [Select] [Select] fails as a NOP works as a NOP
Transcribed Image Text:Most ISA's have an instruction that simply does nothing, called NOP, which is short for NO OPeration (the O is from either word). The instruction is fetched, decoded, and executed so the PC, IR, MAR, and MDR are changed as a result. However, NOP does not change the contents of the general purpose registers, memory, or even the condition codes. Additionally, NOP continues execution with the instruction right after the NOP. Which of the following LC-3 instructions could operate as a NOP? A.) 0000 000 000001100 [Select] B.) 1110 000 000000000 [Select] [Select] fails as a NOP works as a NOP
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