(Material [in brackets] is optional.)

[
FIXME instruction (e.g., add $t0, $t0, $t0)
with PC = FIXME, register values FIXME

FIXME instruction in hex

opcode FIXME
(other fields depend on instruction)

]

PC:
	input FIXME
	output FIXME

Instruction memory:
	input FIXME
	output FIXME

Inputs and output of top-left adder:
	in1 FIXME
	in2 FIXME
	out FIXME

Inputs and output of top-right adder:
	in1 FIXME
	in2 FIXME
	output FIXME

Control signals:
	RegDst	FIXME
	ALUSrc	FIXME
	MemtoReg FIXME
	RegWrite FIXME
	MemRead	FIXME
	MemWrite FIXME
	Branch FIXME
	ALUOp FIXME

Inputs and output of register file:
	Read register 1 FIXME
	Read register 2 FIXME
	Write register FIXME
	Write data FIXME
	Read data 1 FIXME
	Read data 2 FIXME

Inputs and output of the main ALU, including the control signals:
	ALU control FIXME
	ALU input 1 FIXME
	ALU input 2 FIXME
	ALU result FIXME
	Zero FIXME

Inputs and output of data memory:
	Address FIXME
	Write signal FIXME
	Write data FIXME
	Read signal FIXME
	Read data FIXME

State elements to be changed:
	PC FIXME
	register file FIXME
	data memory FIXME