MICROPROCESSOR AND MICROCONTROLLER

INTRODUCTION TO MICROPEOCESSOR

MODEL OF MICROPROCESSOR

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
HLT opcode means
A
load data to accumulator.
B
end of program.
C
load accumulator with contents of register.
D
store result in memory.
Explanation: 

Detailed explanation-1: -In the x86 computer architecture, HLT (halt) is an assembly language instruction which halts the central processing unit (CPU) until the next external interrupt is fired.

Detailed explanation-2: -In 8085 Instruction set, HLT is the mnemonic which stands for ‘Halt the microprocessor’ instruction. It is having a size of 1-Byte instruction.

Detailed explanation-3: -HLT opcode in 8085 microprocessor means end of program.

Detailed explanation-4: -47. Which of the following is not correct about HLT instruction? Explanation: HLT is a machine control statement. Internally, the PC is disconnected from the address bus so, the next fetch is not possible.

Detailed explanation-5: –The Hold is a hardware input whereas HLT is a software instruction.-When the HLT state is executed the processor simply stops and the buses are driven to tri state. No form of acknowledgement signal is given out by the processor.

There is 1 question to complete.