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What is machine control instruction?
HLT
What instruction is HLT?
HLT, or Halt, is an assembly language instruction used to stop the execution of a program. When the CPU encounters the HLT instruction, it enters a low-power state until an interrupt occurs, effectively pausing operations. This instruction is commonly used at the end of a program or to signal that the CPU should wait for further instructions. In some systems, it helps manage power consumption and resource allocation.
When an instruction is executed in a programm what happens in the processor memory?
All the programming instructions whcih are basically in the assembly code has the corresponding hexadecimal code.the microprocessor understand or interprets what this code is and based on that it performs operation for eg HLT which had hexcode 76 the microprocessor understands76 as tha halt instruction and based on that it halts or terminates the program Anand bhat(mca@kiit-870024)
Which group of instruction do not affected the flag in microprocessor?
branch instruction
What happens after the microprocessor completes an instruction?
It fetches the next instruction.
When the microprocessor completes an instruction what happens?
it goes to queue for next instruction
What is the purpose of RST instruction in microprocessor?
Special restart instruction used with interrupts
What instruction is executed by the x86-64 microprocessor?
it has an instruction set of a few hundred instructions.
What is the need of Instruction PointerIP in 8086 microprocessor?
The Instruction Pointer (IP) in an 8086 microprocessor contains the address of the next instruction to be executed. The processor uses IP to request memory data from the Bus Interface Unit, and then increments it by the size of the instruction.
What is DAD RP instruction in microprocessor?
A=HL+A or A=DE+A
What is 1 byte instruction in microprocessor?
1byte instruction = MOV A,B 2byte instruction = MVI A,01H 3byte instruction = STA 2030H
What is EI in microprocessor 8085?
In the 8085 microprocessor, EI stands for "Enable Interrupt." It is an instruction used to enable the interrupt system, allowing the microprocessor to recognize and respond to external interrupt requests. When the EI instruction is executed, the microprocessor sets the interrupt enable flip-flop, permitting it to accept interrupts after the current instruction is completed. This is crucial for handling asynchronous events and multitasking in embedded systems.
