/*This module does the job of the accumulator. The accumulator is actually an 
8 bit register that stores the value you pass into it through the input Q and D_store.
However, it only does this when you give it the input store. When you give it 
a clear signal it clears the registers are cleared. The output of the registers
is found on Q.*/
module register_8_bit(
	input [7:0] D,
	input clear,
	input store,
	output reg [7:0] Q
);

	//Declaring the register we will use
	reg [7:0] D_store;

	//The standard always block
	always @(clear, store, D_store, D) begin 
		//Since the buttons are inverted, we check for !clear
		if (!clear) begin
		//These <= are blocking statements. They're like an = sign
		//but a little different. You should cover it in lecture a
		//little later. For now trust that it works like an = sign.
			Q <= 8'b0000_0000;
			D_store	= 8'b0000_0000;
		//Since the buttons are inverted, we check for !store
		 end else if (!store) begin
			Q <= D_store;
		//Otherwise save the value on D into D_store
		end else begin
			D_store <= D;
		end
	end

endmodule