CS501-Midterm
1 / 50
Motorola MC68000 is an example of ---------microprocessor.
2 / 50
-------------- performs the data operations as commanded by the program instructions.
3 / 50
“If P = 1, then load the contents of register R1 into register R2”. This statement can be written in RTL as:
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_________control signals enable the input to the PC for receiving a value that is currently on the internal processor bus.
5 / 50
How can we refer to an instruction register (IR), of 16 bits (numbered 0 to 15) using RTL?
6 / 50
What does the instruction “ldr R3, 58” of SRC do?
7 / 50
Which one of the following register(s) that is/are programmer invisible and is/are required to hold an operand or result value while the bus is busy transmitting some other value?
8 / 50
Which one of the following register(s) contain(s) the address of the place the CPU wants to work with in the main memory and is/are directly connected to the RAM chips on the motherboard?
9 / 50
Which one of the following registers stores a previously calculated value or a value loaded from the main memory?
10 / 50
What functionality is performed by the instruction “lar R3, 36” of SRC?
11 / 50
Identify the opcode, destination register (DR), source registers (SA and SB i/e source register A and source register B) from the following example. ADD R1, R2, R3
12 / 50
_______ operation is required to change the processor‟s state to a known, defined value.
13 / 50
Which instruction is used to store register to memory using relative address?
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_____________all memory systems are dumb, in that they respond to only two commands: read or write
15 / 50
For any of the instructions that are a part of the instruction set of the SRC, there are cerain_________required; which may be used to select the appropriate function for the ALU to be performed, to select the appropriate registers, or the appropriate memory location.
16 / 50
Which one of the following is the code size and the Number of memory bytes respectively for a 2-address instruction?
17 / 50
What is the instruction length of the FALCON-A processor?
18 / 50
The external interface of FALCON-A consists of a ________ data bus.
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The external interface of FALCON-A consists of a ______address bus and ______a data bus.
20 / 50
The code size of 2-address instruction is ________________.
21 / 50
Execution time of a program with respect to the processor is calculated as:
22 / 50
Almost every commercial computer has its own particular ---------- language
23 / 50
What does the word „D‟ in the „D-flip-Flop‟ stands for?
24 / 50
Computer system performance is usually measured by the ---------------
25 / 50
Register-register instructions use ____________ memory operands out of a total of 3 operands
26 / 50
To access an operand in memory, the CPU must first generate an address, which it then issues to the __________
27 / 50
-----------is the ability of application software to operate on models of equipment newer than the model for which it was originally developed. Select correct option:
28 / 50
In which one of the following addressing modes, the value to be stored in memory is obtained by directly retrieving it from another memory location?
29 / 50
Which of the following can be defined as an address of the operand in a computer type instruction or the target address in a branch type instruction?
30 / 50
An “assembler” that runs on one processor and translates an assembly language program written for another processor into the machine language of the other processor is called a ----------------
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_________ control signal allows the contents of the Program Counter register to be written onto the internal processor bus.
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What functionality is performed by the instruction “str R8, 34” of SRC?
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___________ or Branch instructions affect the order in which instructions are performed, or control the flow of the program
34 / 50
Which field of the machine language instruction is the “type of operation” that is to be performed?
35 / 50
Which one of the following is the memory organization of FALCON-E processor?
36 / 50
Which operator is used to „name‟ registers, or part of registers, in the Register Transfer Language?
37 / 50
Which one of the following registers holds the instruction that is being executed?
38 / 50
Which one of the following registers holds the address of the next instruction to be executed?
39 / 50
Type A of SRC has which of the following instructions?
40 / 50
41 / 50
Which one of the following is the memory organization of EAGLE processor?
42 / 50
_____________all memory systems are dumb, in that they respond to only two commands: read or write.
43 / 50
which type of instructions help in changing the flow of the program as and when required?
44 / 50
FALCON-A processor bus has 16 lines or is 16-bits wide while that of SRC _____wide.
45 / 50
The CPU includes three types of instructions, which have different operands and will need different representations. Which one of the instructions requires two source registers?
46 / 50
FALCON-A processor bus has 16 lines or is 16-bits wide while that of SRC is __________ wide.
47 / 50
What is the size of the memory space that is available to FALCON-A processor?
48 / 50
Which one of the following is a bi-stable device, capable of storing one bit of information?
49 / 50
What is the instruction length of the SRC processor?
50 / 50
For the __________ type instructions, we require a register to hold the data that is to be loaded from the memory, or stored back to the memory
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