CS501-Midterm
1 / 50
Computer system performance is usually measured by the ---------------
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The data movement instructions ___________ data within the machine and to or from input/output devices.
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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
4 / 50
Register-register instructions use ____________ memory operands out of a total of 3 operands
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_________ control signal allows the contents of the Program Counter register to be written onto the internal processor bus.
6 / 50
What is the size of the memory space that is available to FALCON-A processor?
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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?
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The code size of 2-address instruction is ________________.
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-----------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:
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Which field of the machine language instruction is the “type of operation” that is to be performed?
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“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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What does the word „D‟ in the „D-flip-Flop‟ stands for?
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What does the instruction “ldr R3, 58” of SRC do?
14 / 50
Motorola MC68000 is an example of ---------microprocessor.
15 / 50
Which one of the following is the memory organization of FALCON-E processor?
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_________control signals enable the input to the PC for receiving a value that is currently on the internal processor bus.
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What is the working of Processor Status Word (PSW)?
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How can we refer to an instruction register (IR), of 16 bits (numbered 0 to 15) using RTL?
19 / 50
What is the instruction length of the FALCON-A processor?
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-------------- performs the data operations as commanded by the program instructions.
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___________ or Branch instructions affect the order in which instructions are performed, or control the flow of the program
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_____________ controller controls the sequence of the flow of microinstructions.
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In which one of the following techniques, the time a processor spends waiting for instructions to be fetched from memory is minimized? Select correct option:
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_____________all memory systems are dumb, in that they respond to only two commands: read or write.
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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?
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What functionality is performed by the instruction “lar R3, 36” of SRC?
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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?
28 / 50
Which one of the following registers holds the instruction that is being executed?
29 / 50
Which one of the following registers stores a previously calculated value or a value loaded from the main memory?
30 / 50
FALCON-A processor bus has 16 lines or is 16-bits wide while that of SRC is __________ wide.
31 / 50
Execution time of a program with respect to the processor is calculated as:
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Which one of the following portions of an instruction represents the operation to be performed?
33 / 50
which type of instructions help in changing the flow of the program as and when required?
34 / 50
_____________all memory systems are dumb, in that they respond to only two commands: read or write
35 / 50
_______ operation is required to change the processor‟s state to a known, defined value.
36 / 50
Almost every commercial computer has its own particular ---------- language
37 / 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
38 / 50
Which of the instruction is used to load register from memory using a relative address?
39 / 50
Which one of the following registers holds the address of the next instruction to be executed?
40 / 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.
41 / 50
Flip-flop is a ____________device, capable of storing one bit of Information
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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?
43 / 50
Which instruction is used to store register to memory using relative address?
44 / 50
What functionality is performed by the instruction “str R8, 34” of SRC?
45 / 50
The external interface of FALCON-A consists of a ________ data bus.
46 / 50
Which one of the following register holds the instruction that is being executed?
47 / 50
The instruction ___________ will load the register R3 with the contenets of the m\emory location M [PC+56]
48 / 50
________ operation is required to change the processor‟s state to a known, defined value.
49 / 50
Which one of the following is the memory organization of EAGLE processor?
50 / 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?
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