CS Quiz 3

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What mask in register F would cause the instruction 8AAF (refer to the language description table) to put a 0 in the least significant bit of register A without disturbing the other bits? 11111110 10000000 01111111 00000001

11111110

Which of the following instructions (as described in the language description table) places 10101011 in register A? 2AAB 2ABA 3AAB 1AAB

2AAB

Which of the following instructions (as described in the language description table) changes the contents of register 5? 4055 35BB 4057 4075

4075

Which of the following instructions (as described in the language description table) will potentially change the contents in register B? 20AB 10AB 40AB 3BAB

40AB

If register A contained the pattern 00000000, which of the following instructions could alter the contents of register 0? (Refer to the language description table.) 800A BA00 700A 900A

800A

Which of the following instructions (as described in the language description table) places 00000000 in register 5? 25FF 15FF 8566 9566

9566

Which of the following instructions will not produce the same result as the others? (Refer to the language description table.) A509 A501 A506

A506

Which of the following instructions (as described in the language description table) will not change the contents of register 5? A503 1508 A508 2508

A508

Which of the following instructions (as described in the language description table) is equivalent to requesting that register A be rotated to the left by three bits? AA05 AA03 AA01 AA08

AA05

Which of the following instructions (as described in the language description table) is essentially an unconditional jump? B333 B133 B233 B033

B033

Which of the following is a component of a machine instruction? Both Op-code and Operand Operand Op-code Port

Both Op-code and Operand

Which step of the machine cycle examines the op-code of the next instruction to be executed? Fetch Execute Load Decode

Decode

Which of the following is not an activity performed entirely within a CPU? Perform Boolean operations Fetch instructions Perform arithmetic operations Move data between registers

Fetch instructions

In which of the following locations is information most readily available for manipulation by the CPU? Mass storage Cache memory General-purpose registers Main memory

General-purpose registers

Which of the following instructions does not fall in the category of arithmetic/logic instructions? OR ROTATE AND JUMP

JUMP

Which of the following instructions falls in the category of data transfer instructions? JUMP AND ROTATE LOAD

LOAD

The bus in a computer is an example of which form of communication? Parallel Neither Serial nor Parallel Both Serial and Parallel Serial

Parallel

Which of the following is not contained in a CPU? RAM Arithmetic and Logic Unit Control Unit Registers

RAM

An ARM based processor is an example of what kind of computer architecture? Pentium CISC DSL RISC

RISC

Which of the following is a form of serial processing? MIMD SIMD SISD Multiprocessor Computer

SISD


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