Description : In 8087, _______ many register stack are there? And of _____ registers. These registers are used as _________ stack. a) 7, 40 bit, FIFO. b) 8, 60 bit, LILO. c) 8, 80 bit, LIFO d) 7, 80 bit, FILO.
Last Answer : b) 8, 60 bit, LILO.
Description : The processor uses the stack to keep track of where the items are stored on it this by using the: a. Stack pointer register b. Queue pointer register c. Both a & b d. None of these
Last Answer : a. Stack pointer register
Description : What is the output of the following code PUSH AL a) Decrement SP by 2 & push a word to stack b) Increment SP by 2 & push a word to stack c) Decrement SP by 2 & push a AL to stack d) Illegal
Last Answer : b) Increment SP by 2 & push a word to stack
Description : In 8085 name the 16 bit registers? a) Stack pointer b) Program counter c) a & b
Last Answer : c) a & b
Description : Which is the basic stack operation: a. PUSH b. POP c. BOTH A and B d. None of these
Last Answer : c. BOTH A and B
Description : A stack pointer is a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory. b. a register that decodes and executes 16-bit arithmetic expression. c. The first memory location where a subroutine address is stored. d. a register in which flag bits are stored
Last Answer : a. a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
Description : Define stack and explain stack related instructions
Last Answer : The stack is a group of memory locations in the R/W memory thatis used for the temporary storage of binary information during the execution of the program. The stack related instructions are PUSH & POP
Description : When the RET instruction at the end of subroutine is executed, a. the information where the stack is iniatialized is transferred to the stack pointer b. the memory address of the RET instruction is ... two data bytes stored in the top two locations of the stack are transferred to the stack pointer
Last Answer : c. two data bytes stored in the top two locations of the stack are transferred to the program counter
Description : In immediate addressing the operand is placed a. in the CPU register b. after OP code in the instruction c. in memory d. in stack
Last Answer : b. after OP code in the instruction
Description : When a subroutine is called, the address of the instruction following the CALL instructions stored in/on the a. stack pointer b. accumulator c. program counter d. stack
Last Answer : d. stack
Description : A stack is a. an 8-bit register in the microprocessor b. a 16-bit register in the microprocessor c. a set of memory locations in R/WM reserved for storing information temporarily during the execution of computer
Last Answer : c. a set of memory locations in R/WM reserved for storing information temporarily during the execution of computer
Description : The data in the stack is called: a. Pushing data b. Pushed c. Pulling d. None of these
Last Answer : a. Pushing data
Description : SP stand for: a. Stack pointer b. Stack pop c. Stack push d. None of these
Last Answer : a. Stack pointer
Description : Stack words on: a. LILO b. LIFO c. FIFO d. None of these
Last Answer : b. LIFO
Description : Which point to the ___ of the stack: a. TOP b. START c. MID
Last Answer : a. TOP
Description : The subprogram finish the return instruction recovers the return address from the: a. Queue b. Stack c. Program counter d. Pointer
Last Answer : b. Stack
Description : Which is used to store critical pieces of data during subroutines and interrupts: a. Stack b. Queue c. Accumulator d. Data register
Last Answer : a. Stack
Description : SP stands for: a. Status pointer b. Stack pointer c. a and b d. None of these
Last Answer : b. Stack pointer
Description : Can ROM be used as stack? a) Yes b) No c) sometimes yes, sometimes no
Last Answer : b) No
Description : Which stack is used in 8085? a) FIFO b) LIFO c) FILO
Last Answer : b) LIFO
Description : Describe the functions of stack pointer and program counter of 8085.
Last Answer : Stack pointer: 1. It is a 16 bit register which is used to store the address of topmost filled memory location of stack memory. 2. SP always points current top of stack. 3. If data is ... of memory and in 8085 the address of memory is 16 bit. Hence program counter is 16 bit register.
Description : ___ Connection and the _______ instruction will solve the problem of synchronization between processor and coprocessor. a) INT & NMI, WAIT b) RQ/GT0 & RQ/GT1, FWAIT c) BUSY & TEST, FWAIT d) S0 & QS0, WAIT
Last Answer : b) RQ/GT0 & RQ/GT1, FWAIT
Description : _______ Stores the instruction currently being executed: a. Instruction register b. Current register c. Both a and b d. None of these
Last Answer : a. Instruction register
Description : Identify the LIFO (Last In First Out) structure among the following: (1) Stack (2) Queue (3) De-queue (4) Array
Last Answer : Stack
Description : The interrupt vector table of 80386 has been allocated ______ space starting from _______ to _______. a) 1Kbyte, 00000H, 003FFH b) 2Kbyte, 10000H, 004FFH c) 3Kbyte, 01000H, 007FFH d) 4Kbyte, 01000H, 009FFH
Last Answer : c) 3Kbyte, 01000H, 007FFH
Description : Serial port vector address is of _______. And causes an interrupt when ________. a) 0013H, either TI or RI flag is set b) 0023H, either TI or RI flag is reset c) 0013H, either TI or RI flag is reset d) 0023H, either TI or RI flag is set
Last Answer : a) 0013H, either TI or RI flag is set
Description : In 8096 we have _____interrupt sources and _______ interrupt vectors. a) 18, 8 b) 21, 6 c) 21, 8 d) 16, 8
Last Answer : c) 21, 8
Description : The coprocessors operate in ______ with a processor on the same buses and with the same instruction _______. a) Parallel, byte stream. b) Series, byte stream. c) Series, bite stream d) Parallel, bite stream.
Last Answer : a) Parallel, byte stream.
Description : In ADC 0808 if _______ pin high enables output. a) EOC b) I/P0-I/P7 c) SOC d) OE
Last Answer : b) I/P0-I/P7
Last Answer : c) 21,
Description : The intel 8086 microprocessor is a _______ processor A. 8 bit B. 16 bit C. 32 bit D. 4 bit
Last Answer : The intel 8086 microprocessor is a 16 bit processor
Description : Microprocessor is a/an _______ circuit that functions as the CPU of the compute A. electronic B. mechanic C. integrating D. processing
Last Answer : Microprocessor is a/an electronic circuit that functions as the CPU of the compute
Description : A microprocessor is a _______ chip integrating all the functions of a CPU of a computer. A. multiple B. single C. double D. triple
Last Answer : A microprocessor is a single chip integrating all the functions of a CPU of a computer.
Description : List the four instructions which control the interrupt structure of the 8085 microprocessor.
Last Answer : • DI ( Disable Interrupts ) • EI ( Enable Interrupts ) • RIM ( Read Interrupt Masks ) • SIM ( Set Interrupt Masks )
Description : A structure that stores a number of bits taken "together as a unit" is a a. gate b. mux c. decoder d. register
Last Answer : d. register
Description : Using DeMorgan's Theorem we can convert any AND-OR structure into a. NAND-NAND b. OR-NAND c. NAND-NOR d. NOR-NAND
Last Answer : a. NAND-NAND
Description : A 32-bit address bus allows access to a memory of capacity(a) 64 Mb (b) 16 Mb (c) 1Gb (d) 4 Gb 2.Which processor structure is pipelined? a) all x80 processors b) all x85 processors c) all x86 processors
Last Answer : c) all x86 processors
Description : Which processor structure is pipelined? a) all x80 processors b) all x85 processors c) all x86 processors
Description : Which is not the main architectural feature of Power PC: a. It is not based on RISC b. Superscalar implementation c. Both 32 & 64 Bit d. Paged Memory management architecture
Last Answer : a. It is not based on RISC
Description : Pentium Pro Processor contains: a. L1 Cache b. L2 Cache c. Both L1 & L2 d. None of these
Last Answer : c. Both L1 & L2
Description : SAM stands for: a. Simple architecture machine b. Solved architecture machine c. Both a & b d. None of these
Last Answer : a. Simple architecture machine
Description : The problem of bus confect and sparse address distribution are eliminated by the use of ______ address technique: a. Fully decoding b. Half decoding c. Both a & b d. None of these
Last Answer : a. Fully decoding
Description : Which is the important part of a combinational logic block: a. Index register b. Barrel shifter c. Both a & b d. None of these
Last Answer : b. Barrel shifter
Description : BCD stands for: a. Binary coded decimal b. Binary coded decoded c. Both a & b d. none of these
Last Answer : a. Binary coded decimal
Description : The original ASCII code used…bits of each byte, reserving that last bit for error checking a. 5 b. 6 c. 7 d. 8
Last Answer : c. 7
Description : LA stands for: a. Load accumulator b. Least accumulator c. Last accumulator d. None of these
Last Answer : a. Load accumulator
Description : Best-First search can be implemented using the following data structure. a) Queue b) Stack c) Priority Queue d) Circular Queue
Last Answer : c) Priority Queue
Description : Best-First search can be implemented using the following data structure A : Queue B : Stack C : Priority Queue D : Circular Queue
Last Answer : C : Priority Queue
Last Answer : A : Queue