Question

True / False
An instruction’s opcode generally indicates the number and type of its operands.

Answer 1

Answer:

True

Explanation:

An opcode is the part of instruction which specifies the operation to be performed by the instruction.

In general, the opcode also provides information about the number and type of operands.

For example, let us consider the MIPS instructions for addition.

• ADD reg_dest, reg_src1, reg_src2

This instruction adds the contents of registers reg_src1 and reg_src2 and stores the result in reg_dest.

• Whereas, ADDI reg_src, reg_dest, value

This instruction adds the value to the content of reg_src and stores the result in reg_dest.

As we can see the opcode type indicates the operand type, number and semantics.