Question

Provide the type, assembly language instruction, and binary representation of instruction described by the following MIPS fields:

op=$0\times 23$, rs=1, rt=2, const=$0\times 4$

Short answer

Type of the instruction described by the MIPS fields: Immediate Instruction

Assembly language Instruction: load word

The binary representation of instruction:

op	rs	rt	immediate
100011	0001	00010	0000 0000 0000 0100

Step-by-step solution

Define MIPS instructions

Each MIPS instruction is 32 bit long. MIPS instructions have an op that specifies the operation and there are 32 registers. MIPS instructions are divided into three categories: I-format, J-format, R-format

Type of instruction

The type of instruction described by the MIPS field is an immediate instruction

It is an immediate instruction because in this instruction the operand is a constant within the instruction itself and in immediate instruction; the operand is only 16 bit.

Assembly language instruction

Assembly language instruction is load word

Load word command copies the value stored at a memory address to a destination register

Binary representation of instruction

op= $0\times 23$, rs = 1, rt = 2, const=$0\times 4$

op specifies what instruction it is

rs is the source register that is used to specify the register containing the first operand

rt is a target register that is used to specify register containing the second operand

const is immediate

So here we use I format

op	rs	rt	immediate
100011	00001	00010	0000 0000 0000 0100

Here, op is a 6-bit operation code

rs is a 5-bit source register

rt is a 5-bit target register

const is a 16-bit immediate branch