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Feyisa Mereba
Tobin Boyle
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When interrupt occurs where is the address following the current instruction stored?
When an interrupt occurs, the address following the current instruction is stored on the stack.
What is the use of instruction decoder?
Instruction decoder takes bits stored in the instruction register and decodes it and tells to CPU what it need to do for it and enable the components for the operation. Simply, instruction decoder is like a dictionary. It tells the meaning of the instruction.
What is the difference in between instruction and information given to a computer?
An instruction has the computer actually do something. Information is just stored data.
What is the genetic code code for?
instruction stored in the gene in the form genetic code.
What is the difference between three address instruction and two address instruction?
the differebce between three address instruction and two address instruction is three adresss instructoion two address instruction 1) here 3 oprarend fields are used 1) here 2 oprerand fields are used 2) the result is stored in 3rd operand 2) here the result is stored in 2nd oparend
Where instruction are coded and stored?
The place where the instructions are coded and stored is called the BIOS. The BIOS is an acronym of Basic Input Output System.
It is an electronic device operating under the control of instruction stored in its own memory?
computer
Conditional results after execution of an instruction in a microprocess is stored in?
Flag register part of psw
Why is is auxiliary memory required?
Auxillary memory is required so that set of instruction given first stored in temorary memory which can be edited & then can be stored
What needs to be stored in a computer in order for the computer to begin to operate by following the program's first instruction?
CPU
How would you describe the fetch execute cycle?
Fetch Execute Cycle A more complete form of the Instruction Fetch Execute Cycle can be broken down into the following steps: 1. Fetch Cycle 2. Decode Cycle 3. Execute Cycle 4. Interrupt Cycle 1. Fetch Cycle The fetch cycle begins with retrieving the address stored in the Program Counter (PC). The address stored in the PC is some valid address in the memory holding the instruction to be executed. (In case this address does not exist we would end up causing an interrupt or exception).The Central Processing Unit completes this step by fetching the instruction stored at this address from the memory and transferring this instruction to a special register - Instruction Register (IR) to hold the instruction to be executed. The program counter is incremented to point to the next address from which the new instruction is to be fetched. 2. Decode Cycle The decode cycle is used for interpreting the instruction that was fetched in the Fetch Cycle. The operands are retrieved from the addresses if the need be. 3. Execute Cycle This cycle as the name suggests, simply executes the instruction that was fetched and decoded
Where is the CPUs instruction set stored?
The CPU's instruction set is not stored anywhere. Rather, it is an integral part of the silicon that the CPU is made out of. The "instruction set" is actually a metaphor used to describe the different effects of charges at different points in the CPU. Just because I call a certain operation "add" doesn't mean anything to the CPU. Charges are applied and due to the way they are applied, different transistors open and close, providing different effects.
