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If the frequency of the crystal connected to 8085 is 6MHz calculate the time to fetch and executed NOP instruction?
At a crystal frequency of 6MHz, the 8085 microprocessor has a clock frequency of 3MHz, or a period of 333 nanoseconds. The NOP instruction requires four clock cycles, three to fetch and one to execute, so the NOP instruction with a crystal frequency of 6MHz would take 1.333 microseconds to fetch and execute.
This does not include wait states, each of which would add 0.333 microseconds to the timing.
What else can I help you with?
What is the difference between instruction registers and instruction pointer?
instruction register is used to store the next instruction to be executed. instruction pointer is used to store the address of the next instruction to be executed.
Role of instruction pointer in 8086?
Its role is to point to the next instruction to be executed in the CPU. It always points to the next instruction to be executed in the CPU
What happens when MUL CH instruction is executed?
MUL is not an 8085 instruction.
How can you calculate the physical memory of the next instruction executed by the microprocessor?
To calculate the physical memory address of the next instruction executed by a microprocessor, you typically use the program counter (PC), which holds the address of the next instruction to be fetched. The PC is incremented after each fetch, usually by the size of the instruction that was executed. In systems with paging or segmentation, you may also need to consider the current values of the segment registers or page tables to translate virtual addresses to physical addresses correctly. Thus, the physical address can be derived from the PC value, along with any necessary address translation mechanisms.
What instruction is executed by the x86-64 microprocessor?
it has an instruction set of a few hundred instructions.
What is the function of instruction register?
The Instruction Register (IR) stores the instruction currently being executed. In simple processors each instruction to be executed is loaded into the instruction register which holds it while it is decoded, prepared and ultimately executed.
What is the function of the program counter register?
The function of the program counter register is to hold the address of the instruction that is being executed and (later) to hold the address of the instruction that will be executed next.
How many bus cycles are required for an unconditional or a conditional jump instruction in 8086 microprocessor to be executed?
when conditional jump instruction is executed it has 10 m/c cycles bt when nt executed it has 7 m/c cycles....while unconditional jump instruction has 10 m/c cycles...
What do you mean by microprogram sequencing?
To get the next micro instruction to be executed.
What is a single instruction to the computer that is executed as soon as it is received?
input
What is an instruction clock in a microprocessor?
An instruction clock in a microprocessor refers to the clock signal that synchronizes the execution of instructions within the processor. It determines the timing for when instructions are fetched, decoded, and executed, effectively controlling the overall speed at which the processor operates. The frequency of the instruction clock influences the number of instructions that can be processed per second, impacting the performance of the microprocessor.
What is CIR register?
The CIR (Current Instruction Register) is a crucial component of a computer's CPU that holds the instruction currently being executed. When an instruction is fetched from memory, it is placed in the CIR before being decoded and executed by the control unit. This allows the CPU to keep track of the instruction flow and manage execution efficiently. By storing the instruction temporarily, the CIR plays a key role in the instruction cycle of the CPU.
