0
What part of the processor indicates which machine instruction in next in line for execution?
The part of the processor that indicates which machine instruction is next in line for execution is called the Program Counter (PC). The Program Counter holds the memory address of the next instruction to be fetched and executed. After the current instruction is executed, the PC is updated to point to the subsequent instruction, ensuring the sequential flow of execution in a program.
What else can I help you with?
How do you add new machine language instruction to a processor intsruction set?
To add a new machine language instruction to an processor instruction set, you need to replace the microcode of the processor.
What is a micro-instruction?
microinstruction: An instruction that controls data flow and instruction-execution sequencing in a processor at a more fundamental level than machine instructions. Note: A series of microinstructions is necessary to perform an individual machine instruction.a micro instruction specifies one or more micro oprations for the system.
What is an instruction phase together with the execution phase called?
The instruction phase together with the execution phase is called a "Machine Cycle".
A processor built in instructions are store as?
A processor's built-in instructions are stored in its microcode, which is a low-level set of commands that control the processor's hardware. These instructions dictate how the processor executes higher-level machine code and manage the various operations of the CPU. Typically, microcode resides in a special memory within the processor, allowing it to be quickly accessed during instruction execution. This enables the processor to perform complex tasks efficiently by translating higher-level instructions into machine-level operations.
Timing diagram of 8085?
Timing Diagram is a graphical representation. It represents the execution time taken by each instruction in a graphical format. The execution time is represented in T-states.Instruction Cycle:The time required to execute an instruction is called instruction cycle.Machine Cycle:The time required to access the memory or input/output devices is called machine cycle.T-State:The machine cycle and instruction cycle takes multiple clock periods.A portion of an operation carried out in one system clock period is called as T-state.MACHINE CYCLES OF 8085:The 8085 microprocessor has 5 (seven) basic machine cycles. They areOpcode fetch cycle (4T)Memory read cycle (3 T)Memory write cycle (3 T)I/O read cycle (3 T)I/O write cycle (3 T)Each instruction of the 8085 processor consists of one to five machine cycles, i.e., when the 8085 processor executes an instruction, it will execute some of the machine cycles in a specific order.The processor takes a definite time to execute the machine cycles. The time taken by the processor to execute a machine cycle is expressed in T-states.One T-state is equal to the time period of the internal clock signal of the processor.The T-state starts at the falling edge of a clock.
How many t states are required for opcode fetch machine cycle at the execution of sequential instruction?
three
What is a bytecode?
In Java, "bytecode" is the name given to the compiled class files. The "compilation" in this case is not for a specific processor, but rather for a kind of fictional processor - and it is meant to be run by a Java Virtual Machine.
What is the use crystal 11.0592MHZ?
this crystals deter mains how many no of machine cycles are need for the execution of one instruction
What are the four distinct actions that a machine instruction can specify?
• The processor fetches the instruction from memory • Program counter (PC) holds address of the instruction to be fetched next • PC is incremented after each fetch • Fetched instruction loaded into instruction register
What parameters decide the size of data type for a processor?
Some bits of machine instruction code. Of course it is platform-dependent.
How many machine cycles in the XCHG instruction?
Summary − So this instruction XCHG requires 1-Byte, 4-Machine Cycles (Opcode Fetch) and 4 T-States for execution as shown in the timing diagram.
What are examples of Simple Machine Language output?
Simple Machine Language output typically includes low-level instructions that a computer's processor can execute directly. Examples of such output might include commands like "LOAD A, 5" to load the value 5 into register A, "ADD A, B" to add the contents of register B to A, or "JUMP 10" to move the execution to an instruction located at address 10. This output is often specific to a particular architecture and directly corresponds to the machine's instruction set.
