8-bit Microprocessor Verilog Code [2027]

Let's write a program that loads 5 into ACC, adds 3, and stores the result (8) at address 0xFF:

// Instantiate Program Counter program_counter pc_inst ( .clk(clk), .rst_n(rst_n), .jump_addr(jump_addr), .jump_en(pc_jump_en), .pc(pc_current) ); 8-bit microprocessor verilog code

endmodule

This is the heart of the microprocessor. The control unit reads the opcode and generates all control signals for the datapath. A 3-state FSM works well: Let's write a program that loads 5 into

module processor ( input clk, rst, output [15:0] addr_bus, inout [7:0] data_bus, output mem_read, mem_write ); // Internal signals reg [15:0] pc; reg [7:0] ir; reg [7:0] alu_out; reg zero_flag; // Register selects and controls reg [1:0] reg_sel_a, reg_sel_b, reg_sel_wr; reg [7:0] wr_data; reg wr_en; wire [7:0] reg_a, reg_b; output [15:0] addr_bus