Computer Architecture And Design Question:
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Described the different types of fields that are part of an instruction?
Answer:
An instruction can be considered to be a command that has been issued to a computer to perform a particular operation. The instruction format contains various field in them such as:
★ Operation Code Field:
Also known as the op code field, this field is used to specify the operation to be performed for the instruction.
★ Address Field:
This field as its name specifies is used to designate the various addresses such as register address and memory address.
★ Mode field:
This field specifies as to how effective address is derives or how an operand is to perform.
★ For ex. ADD R0, R1. In this case the ADD is the operand whereas the R1, ans R0 are the address fields.
★ Operation Code Field:
Also known as the op code field, this field is used to specify the operation to be performed for the instruction.
★ Address Field:
This field as its name specifies is used to designate the various addresses such as register address and memory address.
★ Mode field:
This field specifies as to how effective address is derives or how an operand is to perform.
★ For ex. ADD R0, R1. In this case the ADD is the operand whereas the R1, ans R0 are the address fields.
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