Quiz 1 Flashcards by Angelica Claros

Simulate the given instructions and determine which among the choices is correct. initially
CF=0,AF=0,ZF=0,SF=0,PF=0
MOV AL, CD
MOV BL, B7
ADD AL, BL

CF=1, AF=1, ZF=0, SF=1, PF = 1

(11011)

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Simulate the given Instructions and determine which among the choices is correct. initially
CF=0,AF=0,ZF=0,SF=0,PF=0
MOV AL, 3D
MOV BL, 8F
SUB AL, BL

CF=1, AF=1, ZF=0, SF=1, PF=0

11010

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Simulate the given Instructions and determine which among the choices is correct. initially
CF=0,AF=0,ZF=0,SF=0,PF=0
MOV AL, 74
MOV BL, 3F
ADDAL, BL
MOVDL, AL

CF=0, AF=1, ZF=0, SF=1, PF=1

(01010)

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=0; ZF=0; SF=0; PF=0
MOV AL, B6
MOV BL, E5
ADD AL, BL

CF=1, AF=0, ZF=0, SF=1, PF=0
10010

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=0; ZF=0; SF=0; PF=0; DF=0; IF=0; OF=0; TF=0; NT=0; IOPL=00
1. MOV AL, BC
2. MOV BL, 48
3. ADD AL, BL
4. STD
5. STI
6. It is assumed that the task is nested.
7. It is assumed that the input/output privilege level is third to the highest.
8. It is assumed that the result exceeds the limit.

CF=1; AF=1; ZF=0; SF=0; PF=0; DF=1; IF=1; OF=1; TF=0; NT=1; IOPL=10

Mnemonic:
110001110110
(C76)

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=1; ZF=0; SF=0; PF=1; DF=0; IF=1; OF=0; TF=0; NT=1; IOPL=00
1.MOV AL, 83
2.MOV CL, AL
3.MOV BL, BE
4.SUB CL, BL
5. STC
6. CLI
8. It is assumed that there is overflow.
9. It is assumed that there is error.
HINT: sub destination, source; destination– source = difference; destination = difference

CF=1; AF=1; ZF=0; SF=1; PF=1; DF=0; IF=0; OF=1; TF=1; NT=1; IOPL=00

Mnemonic:
110110011100
(D9C)

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=0; ZF=0; SF=0; PF=0
MOV AL, B6
MOV BL, E5
ADD AL, BL

CF=1; AF=0; ZF=0; SF=1; PF=0

10010

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=1; ZF=0; SF=0; PF=1
MOV AL, AA
MOV CL, AL
MOV BL, FB
SUB CL, BL
HINT: sub destination, source; destination– source = difference; destination = difference

CF=1; AF=1; ZF=0; SF=1; PF=1

11011

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=0; ZF=0; SF=0; PF=0; DF=0; IF=0; OF=0; TF=0; NT=0; IOPL=00
1. MOV AL, DC
2. MOV BL, 12
3. ADD AL, BL
4. STD
5. STI
6. It is assumed that the task is nested.
7. It is assumed that the input/output privilege level is third to the lowest.
8. It is assumed that the result exceeds the limit.

CF=0; AF=0; ZF=0; SF=1; PF=1; DF=1; IF=1; OF=1; TF=0; NT=1; IOPL=01

Mnemonic:
000111110101
(1F5)

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=1; ZF=0; SF=0; PF=1; DF=0; IF=1; OF=0; TF=0;
1.MOV AL, C2
2.MOV CL, AL
3.MOV BL, FA
4.SUB CL, BL
5. STC
6. CLI
8. It is assumed that there is overflow.
9. It is assumed that there is error.
HINT: sub destination, source; destination– source = difference; destination = difference

CF=1; AF=0; ZF=0; SF=1; PF=1; DF=0; IF=0; OF=1; TF=1

Mnemonic:
(100110011)
(991)

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Simulate the given instructions (below) and determine which among the choices is correct.
Initially CF=0; AF=1; ZF=0; SF=0; PF=1; DF=0; IF=1; OF=0; TF=0; NT=1; IOPL=00
1.MOV AL, BC
2.MOV CL, AL
3.MOV BL, 7D
4.ADD CL, BL
5. STC
6. CLI
8. It is assumed that there is overflow.
9. It is assumed that there is error.
10. It is assumed that the IOPL is second to the highest level.
11. STD
12. It is assumed that the task is nested.
HINT: sub destination, source; destination– source = difference; destination = difference

CF=1; AF=1; ZF=0; SF=0; PF=1; DF=1; IF=0; OF=1; TF=1; NT=1; IOPL=01

Mnemonic:
(110011011101)
(CDD)

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Simulate the given instructions (below) and determine which among the choices is not correct.
Initially CF=0; AF=1; ZF=0; SF=0; PF=1; DF=0; IF=1; OF=0; TF=0; NT=1; IOPL=00
1.MOV AL, 8C
2.MOV CL, AL
3.MOV BL, 77
4.ADD CL, BL
5. STC
6. CLI
8. It is assumed that there is overflow.
9. It is assumed that there is error.
10. It is assumed that the IOPL is third to the highest level.
11. STD
12. It is assumed that the task is nested.
HINT: sub destination, source; destination– source = difference; destination = difference

CL=39

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CL=39

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Simulate the given instructions and determine which among the choices is correct.
Initially CF=0, AF=1, ZF=0, SF=0, PF=1
MOVAL, B7
MOVCL, AL
MOVBL, E8
SUB CL, AL
HINT: sub destination, source
destination-source= difference
destination=difference

CF=1;AF=1;ZF=0;SF=1;PF=1

11011

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Simulate the given instructions and determine which among the choices is correct.
Initially CF=0,AF=0,ZF=0,SF=0,PF=0,DF=0,IF=0,OF=0,TF=0,NT=0,IOPL=00
MOVAL, FB
MOVBLB7
ADDAL, BL
STD
STI
It is assumed that the task is nested.
It is assumed that the input/output privilege level is second to the highest,

CF=1;AF=1;ZF=0;SF=1;PF=0;DF=1;IF=1;OF=0;TF=0;NT=1;IOPL=01

Mnemonic:
110101100101
(D65)

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Simulate the given program 1. After executing instruction # 5, which among the choices is correct?

PROGRAM1:
Initially AX=0000; BX=0000; CX=0000; DX=0000;CF=0; BP=0BA8C ; SP currently pointing to
BP
1.MOV AX, 623C
2.MOV BX, ACD4
3.MOV CX, E7A8
4.MOV DX, F943
5.ADD AX, BX; destination=source+destination
6.PUSH AX
7.SUB CX, DX; destination=destination-source
8.PUSH CX
9.PUSH BX
10.PUSH DX
11.POP AX
12.POP BX
13.ADD AX, BX
14.PUSH AX
15.POP CX
16.POP DX
17. POP BX

BX=ACD4

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Simulate the given program 1. After executing instruction # 6, which among the choices is correct?

AX=0F10, CF=1, SP=0BA8A

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Simulate the given program 1. After executing instruction # 1, which among the choices is correct?

SP 0BA8C

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Simulate the given program 1. After executing instruction # 10, which among the choices is correct?

SP-1 0BA85
SP-2 OBA84

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Simulate the given program 1. After executing instruction # 14, which among the choices is correct?

AX=A617, CF=1; SP=0BA86

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Which among the flags selects either the increment or decrement mode for the DI and/or SI registers during string operations?
1. Option 1
Parity Flag
2. Option 2
Direction Flag
3. Option 3
Interrupt Flag
4. Option 4
Trap Flag

Direction Flag

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The most basic but complete microprocessor-based computer would consist of
1. Option 1
“CPU, memory, I/O, system bus”
2. Option 2
“CPU, memory, I/O, interrupt circuitry”
3. Option 3
“CPU, memory, I/O, timing circuitry”
4. Option 4
none of the choices

“CPU, memory, I/O, system bus”

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First chip developed by Intel
1. Option 1
Intel 3101
2. Option 2
Intel 4004
3. Option 3
Intel 8080
4. Option 4
Intel 8086

Intel 4004

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“A doubleword number, 66963286H, is to be stored into memory using little endian format starting at memory location 00100H. What would be the content of memory location 00103H?”
1. Option 1
96
2. Option 2
66
3. Option 3
32
4. Option 4
86

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The invention of Integrated Circuit (IC) was credited to (Note: this is a right minus wrong question) 1. Option 1 Robert Noyce 2. Option 2 Jack Kilby 3. Option 3 William Shockley 4. Option 4 Ted Hoff

Robert Noyce Jack Kilby

"Intel CPUs are also called __________ computers, while Motorola processors are called __________ computers." 1. Option 1 little endian; big endian 2. Option 2 big endian; little endian 3. Option 3 little indian; big indian 4. Option 4 big indian; little indian

little endian; big endian

The world's first 8-bit microprocessor. 1. Option 1 8008 2. Option 2 8080 3. Option 3 6800 4. Option 4 Z80

8008

Robert Noyce and Gordon Moore were the co-founders of ______? (Note: This is a right minus wrong question) 1. Option 1 Texas Instruments 2. Option 2 Fairchild Semiconductor 3. Option 3 Intel 4. Option 4 Western Digital

Fairchild Semiconductor Intel

The project that produced the first microprocessor originated in 1969 and was conceptualized by the company 1. Option 1 BUSICOM 2. Option 2 Intel 3. Option 3 Texas Instruments 4. Option 4 Garrett AiResearch

BUSICOM

Memory is sometimes accessed, I/O devices are used to display the result of the instruction execution. 1. Option 1 Reset 2. Option 2 Fetch 3. Option 3 Decode 4. Option 4 Execute

Execute

Which is not a word-sized register? 1. Option 1 ES 2. Option 2 FLAGS 3. Option 3 EIP 4. Option 4 R15W

EIP

"A doubleword number, 20471219H, is to be stored into memory using little endian format starting at memory location 00100H. What would be the content of memory location 00101H?" 1. Option 1 12 2. Option 2 20 3. Option 3 47 4. Option 4 19

What is the function of the program counter (PC) in the fetch stage? 1. Option 1 Store the current instruction being executed 2. Option 2 Decode the opcode of the instruction 3. Option 3 Increment to point to the next instruction 4. Option 4 Send signals to control units

Increment to point to the next instruction

What is the function of an interrupt controller? 1. Option 1 To control the flow of data between the CPU and I/O devices 2. Option 2 To handle external events that require the CPU's attention 3. Option 3 To provide timing and synchronization signals 4. Option 4 To manage memory allocation

To handle external events that require the CPU's attention

What is the function of a DMA controller? 1. Option 1 To transfer data directly between memory and peripheral devices without the intervention of the microprocessor 2. Option 2 To control the operation of the microprocessor 3. Option 3 To store data and instructions 4. Option 4 None of the choices

To transfer data directly between memory and peripheral devices without the intervention of the microprocessor

What is the purpose of an interrupt? 1. Option 1 To allow a device to request service from the microprocessor 2. Option 2 To allow the microprocessor to communicate with other devices 3. Option 3 To store data and instructions 4. Option 4 None of the choices

To allow a device to request service from the microprocessor

What was the first commercially available personal computer to use a microprocessor, the Intel 8080? 1. Option 1 Apple II 2. Option 2 Altair 8800 3. Option 3 IBM Personal Computer 4. Option 4 Commodore PET

Altair 8800

Who is credited with the invention of the Intel 4004? 1. Option 1 Gordon Moore 2. Option 2 Ted Hoff 3. Option 3 Stan Mazor 4. Option 4 Federico Faggin

Ted Hoff

What was the primary motivation for the development of the first microprocessor, the Intel 4004, in 1971? 1. Option 1 Creating a powerful computer for scientific research 2. Option 2 Replacing bulky and expensive mainframe computers 3. Option 3 Developing a programmable logic device for calculators 4. Option 4 Building the first personal computer

Developing a programmable logic device for calculators

What was the first application of the transistor that paved the way for integrated circuits? 1. Option 1 Personal computers 2. Option 2 Pocket calculators 3. Option 3 Transistors radios 4. Option 4 Hearing aids

Transistors radios

Who invented the transistor in 1947, laying the groundwork for the microprocessor? 1. Option 1 John Bardeen, Walter Brattain, and William Shockley 2. Option 2 Claude Shannon and Alan Turing 3. Option 3 John von Neumann and Norbert Wiener 4. Option 4 Steve Jobs and Steve Woznia

John Bardeen, Walter Brattain, and William Shockley

What was the significance of the LSI circuit for the development of the microprocessor? 1. Option 1 It allowed for the creation of more complex circuits on a single chip. 2. Option 2 It reduced the cost of manufacturing integrated circuits. 3. Option 3 It increased the speed of integrated circuits. 4. Option 4 All of the Choices

All of the Choices

Who is credited with the invention of the Large Scale Integration (LSI) circuit, which contained thousands of transistors? 1. Option 1 Robert Noyce 2. Option 2 Ted Hoff 3. Option 3 Gordon Moore 4. Option 4 Marcian Hoff

Robert Noyce

What was the primary function of the first ICs? 1. Option 1 Microprocessors 2. Option 2 Memory chips 3. Option 3 Logic gates 4. Option 4 Amplifiers

Logic gates

What was the main advantage of the IC over discrete transistors? 1. Option 1 Increased processing power 2. Option 2 Smaller size and reduced complexity 3. Option 3 Lower cost 4. Option 4 Increased reliability

Smaller size and reduced complexity

Which year did Jack Kilby invent the first integrated circuit (IC)? 1. Option 1 1958 2. Option 2 1961 3. Option 3 1964 4. Option 4 1967

1958

What are some of the challenges facing the future of microprocessor development? 1. Option 1 Reaching the limits of Moore's Law 2. Option 2 Increasing power consumption 3. Option 3 Security vulnerabilities 4. Option 4 All of the Choices

All of the Choices

What are the main factors that have driven the evolution of microprocessors? 1. Option 1 Advances in semiconductor technology 2. Option 2 Increasing demand for computing power 3. Option 3 The need for smaller and more portable devices 4. Option 4 All of the choices

All of the choices

What is the primary trend in microprocessor development over the past few decades? 1. Option 1 Increasing clock speed 2. Option 2 Decreasing transistor size 3. Option 3 Increasing core count 4. Option 4 All of the choices

All of the choices

What is Moore's Law? 1. Option 1 The observation that the number of transistors on a microchip doubles approximately every two years. 2. Option 2 The theory that the speed of a processor increases exponentially with time. 3. Option 3 The prediction that the cost of computers will decline by half every year. 4. Option 4 The rule that states that the performance of a computer is limited by the speed of its memory

The observation that the number of transistors on a microchip doubles approximately every two years.

What was the name of the first commercially available 64-bit microprocessor? 1. Option 1 Intel Pentium 2. Option 2 AMDAthlon 3. Option 3 Intel Itanium 4. Option 4 PowerPC 604

Intel Itanium

What was the primary advantage of RISC processors over CISC processors? 1. Option 1 Faster clock speed 2. Option 2 Simplified instruction set 3. Option 3 Lower power consumption 4. Option 4 Higher transistor count

Simplified instruction set

Which company developed the first commercially successful RISC (Reduced Instruction Set Computing) processor? 1. Option 1 Sun Microsystems 2. Option 2 MIPS Computer Systems 3. Option 3 Hewlett-Packard 4. Option 4 IBM

Sun Microsystems

What was the name of the first commercially available 32-bit microprocessor? 1. Option 1 Intel 80386 2. Option 2 Motorola 68020 3. Option 3 SPARC 4. Option 4 Intel 80486

Intel 80386

Which company developed the first 16-bit microprocessor, the Intel 8086? 1. Option 1 Zilog 2. Option 2 Motorola 3. Option 3 IBM 4. Option 4 Intel

Intel

What was the name of the first commercially available 8-bit microprocessor? 1. Option 1 Intel 8008 2. Option 2 Zilog Z80 3. Option 3 Intel 8080 4. Option 4 Intel 4004

Intel 8080

What was the primary function of the first microprocessors? 1. Option 1 Floating point numbers 2. Option 2 Word processing 3. Option 3 Calculator operations 4. Option 4 Gaming

Calculator operations

Who is considered the "father of the microprocessor"? 1. Option 1 Gordon Moore 2. Option 2 Ted Hoff 3. Option 3 Steve Jobs 4. Option 4 Bill Gates

Ted Hoff

Which year was the first commercially available microprocessor, the Intel 4004, released? 1. Option 1 1966 2. Option 2 1968 3. Option 3 1971 4. Option 4 1974

1971

Which type of memory is the fastest but also the most expensive? 1. Option 1 RAM 2. Option 2 Cache 3. Option 3 ROM 4. Option 4 Magnetic disk

Cache

What is the purpose of registers? 1. Option 1 To store temporary data used during calculations 2. Option 2 To perform arithmetic and logical operations 3. Option 3 To store frequently used data for faster access. 4. Option 4 To hold the current instruction being executed

To store temporary data used during calculations

What is the difference between little-endian and big-endian byte ordering? 1. Option 1 Little-endian stores the least significant byte first, while big-endian stores the most significant byte first. 2. Option 2 Little-endian stores the most significant byte first, while big-endian stores the least significant byte first. 3. Option 3 Little-endian uses 16-bit addressing, big-endian uses 32-bit addressing. 4. Option 4 Little-endian is faster for arithmetic operations, big-endian is faster for memory access.

Little-endian stores the least significant byte first, while big-endian stores the most significant byte first.

A complete data transfer inside the microprocessor or microcontroller is referred to as? 1. Option 1 Bus Cycle 2. Option 2 Transmitted 3. Option 3 Executed 4. Option 4 Received

Bus Cycle

Base Index register is responsible in handling this type of address. 1. Option 1 Offset address 2. Option 2 Segment address 3. Option 3 Effective address 4. Option 4 Computed address

Offset address

If pin INTR is connected to the ground, which flag is affected? 1. Option 1 Interrupt flag 2. Option 2 Carry flag 3. Option 3 Trap flag 4. Option 4 Direction flag

Interrupt flag

In microprocessor or microcontrollers, $ usually stands for what? 1. Option 1 Hexadecimal 2. Option 2 Decimal 3. Option 3 Octal 4. Option 4 Binary

Hexadecimal

The processor uses these registers to control accesses to memory and I/O. 1. Option 1 Segment registers 2. Option 2 Registers 3. Option 3 General-purpose registers 4. Option 4 Instruction pointer/Program counter

Segment registers

These are signals that indicate need of attention, perform special task and resume the pre-empted operation. 1. Option 1 Interrupt 2. Option 2 Control signals 3. Option 3 Operation code 4. Option 4 Commands

Interrupt

These are used to indicate status of the microprocessor and even control some of its features. 1. Option 1 Flag 2. Option 2 Flag register 3. Option 3 Status word 4. Option 4 Condition code register

Flag

This bus is responsible for specifying the time and the direction of the transfer. 1. Option 1 Control Bus 2. Option 2 Data Bus 3. Option 3 Address Bus 4. Option 4 System Bus

Control Bus

This element consists of circuits needed to get information or data into the program. 1. Option 1 Input Devices 2. Option 2 Operation code 3. Option 3 System bus 4. Option 4 I/O Port

Input Devices

This element executes instructions that are stored in the memory section and serves as the master controller of all the operations. 1. Option 1 CPU 2. Option 2 Math coprocessor 3. Option 3 ALU 4. Option 4 Microprocessor operation

CPU

This element is always in phase with the clock system of the microprocessor. 1. Option 1 Timing 2. Option 2 Program counter 3. Option 3 Control logic 4. Option 4 Execute phase

Timing

This element is the one responsible in decoding the operation code of the instruction. 1. Option 1 Instruction decoder 2. Option 2 Instruction interpreter 3. Option 3 Instruction translator 4. Option 4 Instruction sequencer

Instruction decoder

This element is the one responsible in monitoring the bus operation. 1. Option 1 Watchdog monitor 2. Option 2 Cache Coherency 3. Option 3 Bus Snooping 4. Option 4 Inquire cycle

Watchdog monitor

This element plays a very important role in the operation of the microprocessor because all the data and instructions are first stored here. 1. Option 1 Register 2. Option 2 Memory 3. Option 3 Instruction Register 4. Option 4 Stack

This element serves as a medium of communication between the processor and the outside world. 1. Option 1 I/O port 2. Option 2 Bus 3. Option 3 Cables 4. Option 4 Operation code

I/O port

This element stores information either temporarily or permanently. 1. Option 1 Memory 2. Option 2 ROM 3. Option 3 RAM 4. Option 4 NVM

Memory

This flag sets if there is an error. 1. Option 1 Trap Flag 2. Option 2 Nested Flag 3. Option 3 NT Flag 4. Option 4 Overflow Flag

Trap flag

This is Intel's method of storing 16-bit size of data in memory. It stores the lower byte into the lower memory and the higher byte into the higher memory. 1. Option 1 Little endian 2. Option 2 Big Endian 3. Option 3 Byte exchange 4. Option 4 Word Swapping

Little endian

This is a group of lines that has a related function within a microprocessor system. 1. Option 1 Internal bus 2. Option 2 External bus 3. Option 3 System bus 4. Option 4 Bus

Internal Bus

This is defined as a collection of signals that direct the data transfer between the various modules in the computer. 1. Option 1 Bus 2. Option 2 I/O Interfaces 3. Option 3 I/O Ports 4. Option 4 Cable

Bus

This is defined as the collection of the I/O port, external electronics, physical devices, and the software, which combine to allow the computer to communicate with the external world. 1. Option 1 Interface 2. Option 2 Input Port 3. Option 3 Output Port 4. Option 4 I/O Port

Interface