Description : The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is known as: a) Index Register b) Memory Address Register c) Program Counter d) None of The Above
Last Answer : c) Program Counter
Description : The ............... addressing mode is similar to register indirect addressing mode, except that an offset is added to the contents of the register. The offset and register are specified in the instruction. (A) Base indexed (B) Base indexed plus displacement (C) Indexed (D) Displacement
Last Answer : (D) Displacement
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? A) Memory address register B) Memory data register C) Instruction register D) Program counter
Last Answer : Answer : D
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? A) Memory address registers B) Memory data registers C) Instruction register D) Program counter
Last Answer : Answer : C
Description : The load instruction is mostly used to designate a transfer from memory to a processor register known as_________ A. Accumulator B. Instruction Register C. Program counter D. Memory address Register
Last Answer : A. Accumulator
Description : Which register keeps tracks of the instructions in the program stored in memory? A. Address Register B. Index Register C. Program Counter D. None of the Above
Last Answer : C. Program Counter
Description : The instruction fetch operation is initiated by loading the contents of program counter into the and sends _ request to memory: a. Memory register and read b. Memory register and write c. Data register and read d. Address register and read
Last Answer : d. Address register and read
Description : The instruction read from memory is then placed in the ___and contents of program counter is __ so that it contains the address of_ __ instruction in the program. a. Program counter, ... incremented and previous c. Instruction register, incremented and next d. Address register, decremented and next
Last Answer : c. Instruction register, incremented and next
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? a. Memory address register b. Memory data register c. Instruction register d. Program counter
Last Answer : Program counter
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address registers b. Memory data registers c. Instruction register d. Program counter
Last Answer : Instruction register
Last Answer : d. Program counter
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? a. Memory address register b. Memory data register c. Instruction registers d. Program counter
Last Answer : c. Instruction registers
Last Answer : c. Instruction register
Description : The advantage of ............... is that it can reference memory without paying the price of having a full memory address in the instruction. (A) Direct addressing (B) Indexed addressing (C) Register addressing (D) Register Indirect addressing
Last Answer : (D) Register Indirect addressing
Description : Which one of the following is not an addressing mode? (A) Register indirect (B) Auto increment (C) Relative indexed (D) Immediate operand
Last Answer : (C) Relative indexed
Description : Which addressing offset can be the content of PC and also can be negative: a. Relative addressing b. Immediate addressing c. Direct addressing d. Register addressing
Last Answer : a. Relative addressing
Description : IR stands for: a. Intel register b. In counter register c. Index register d. Instruction register
Last Answer : d. Instruction register
Description : ___ mode of addressing is a form of implied addressing: a. Stack b. Array Cc. Queue d. ‘Binary
Last Answer : a. Stack
Description : In which addressing mode the operand is given explicitly in the instruction? A. Absolute B. Immediate C. Indirect D. Direct
Last Answer : B. Immediate
Description : Which addressing mode is most suitable to change the normal sequence of execution of instructions? A. Immediate B. Indirect C. Relative D. None of the Above
Last Answer : C. Relative
Description : The addressing mode which makes use of in-direction pointers is ______ A. Offset addressing mode B. Relative addressing mode C. Indirect addressing mode D. None of the Above
Last Answer : C. Indirect addressing mode
Description : In which addressing the operand is actually present in instruction: a. Immediate addressing b. Direct addressing 9 Register addressing a None of these
Last Answer : a. Immediate addressing
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 : What addressing mode is used in the instruction RET? (a) Direct (b) Immediate (c) Implicit (d) Register-indirect
Last Answer : What addressing mode is used in the instruction RET? (a) Direct (b) Immediate (c) Implicit (d) Register-indirect
Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? a. Memory Address Register b. Memory Data Register c. Instruction Register d. Program Register
Last Answer : d. Program Register
Description : The contents of the program counter isthe __——__—oof the instruction to be run. a. Data b. Address c. Counter d. None of these
Last Answer : b. Address
Description : When subroutine is called contents of program counter is location address of __ instruction following call instruction is stored on _ __and program execution is transferred to __ address. a. Non ... , Stack and Main program Cc. Executable, Queue and Subroutine d. Executable, Stack and Subroutine
Last Answer : d. Executable, Stack and Subroutine
Description : Who change the address in the program counter and cause the flow of control to be altered: a Shift manipulation b. Circular manipulation c. Program control instruction d. __ Allof these
Last Answer : c. Program control instruction
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 : 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 : 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 : In which addressing the simplest addressing mode where an operand is fetched from memory is a. Immediate addressing b. Direct addressing c. Register addressing d. None of these
Last Answer : b. Direct addressing
Description : In which mode the main memory location holds the EA of the operand: a. Immediate addressing b. Direct addressing c. Register addressing d. Indirect addressing
Last Answer : d. Indirect addressing
Description : The final addressing mode that we consider is a. Immediate addressing b. Direct addressing c. Register addressing d. Stack addressing
Last Answer : d. Stack addressing
Description : Various machine level components are: a. Address register > Program counter c Data register d. Accumulator register e. Memory of 2K,16 bits/word RAM f. Multiplexers g. Allof these
Last Answer : g. Allof these
Description : In length instruction some programs wants a complex instruction set containing more instruction, more addressing modes and greater address rang, as in case of a. RISC b. CISC c. Both d. None
Last Answer : b. CISC
Description : Assume a two address format specified as source, destination. Examine the following sequence of instruction and explain the addressing modes used and the operation done in every instruction?
Last Answer : 1. Move (R5) +, R0 2. Add (R5) +, R0. 3. Move (R0), (R5) 4. Move 16(R5), R3 5. Add #40, R5
Description : A basic instruction that can be interpreted by computer generally has ________ A. An operand and an address B. decoder and an accumulator C. Sequence register and decoder D. None of the Above
Last Answer : A. An operand and an address
Description : The register which holds the address of the location to or from which data are to be transferred is known as_______ A. Instruction Register B. Control register C. Memory Address Register D. None of the Above
Last Answer : C. Memory Address Register
Description : The decoded instruction is stored in ______ (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above
Last Answer : (C) Instruction Register(IR)
Description : Which registers can interact with secondary memory? (A) Register (B) Memory Address Register(MAR) (C) Instruction Register(IR) (D) None of the Above
Last Answer : (B) Memory Address Register(MAR)
Description : The ___________ contains the address of the next instruction to be executed. a) IR b) PC c) Accumulator d) System counter
Last Answer : Answer: b Explanation: PC stands for program counter (It contains the address of the next instruction to be executed)
Description : In post-indexing the contents of the address field are used to access a memory location containing a___ address: Immediate addressing Direct addressing Register addressing ao | None of these
Last Answer : Direct addressing
Description : Brief about relative addressing mode with an example?
Last Answer : It is same as index mode. The difference is, instead of general purpose register, here we can use program counter(PC). Relative Mode: The Effective Address is determined by the Index mode using the PC in ... if the branch condition is satisfied. Syntax of Relative Addressing mode is: X(PC) EA=[PC]+X
Description : The register which contains the data to be written into or readout of the addressed location is called: a) Index Register b) Memory Address Register c) Memory Data Register d) None of The Above
Last Answer : c) Memory Data Register
Description : An address consists of ____. (1) an offset (2) a base register (3) an index register (4) All of the above
Last Answer : All of the above
Description : A document that specifies how many times and with what data the program must be run in order to thoroughly test it. a) addressing plan b) test plan c) validation plan d) verification plan
Last Answer : Answer: b Explanation: Test plan is the A document that specifies how many times and with what data the program must be run in order to thoroughly test it. It comes under testing