verilog流水线除法器

Verilog中实现流水线除法器可以使用SRT（Sweeney-Robertson-Tocher）算法或者Newton-Raphson算法。这里我给出一个使用SRT算法实现的Verilog代码示例：

module Divider (
    input wire [31:0] dividend,
    input wire [15:0] divisor,
    output wire [31:0] quotient,
    output wire [15:0] remainder,
    output wire done
);

reg [15:0] reg_divisor;
reg [31:0] reg_quotient;
reg [15:0] reg_remainder;
reg [5:0] count;
reg [4:0] state;

// 状态定义
localparam IDLE = 3'b000;
localparam SHIFT = 3'b001;
localparam SUBTRACT = 3'b010;
localparam COMPARE = 3'b011;
localparam UPDATE = 3'b100;

always @(*) begin
    case (state)
        IDLE: begin
            if (dividend != 0) begin
                reg_divisor <= divisor;
                reg_quotient <= dividend;
                reg_remainder <= 0;
                count <= 0;
                state <= SHIFT;
            end
        end
        SHIFT: begin
            reg_quotient <= {reg_quotient, 1'b0};
            count <= count + 1;
            state <= SUBTRACT;
        end
        SUBTRACT: begin
            if (reg_quotient >= reg_divisor) begin
                reg_quotient <= reg_quotient - reg_divisor;
                state <= COMPARE;
            end else begin
                state <= COMPARE;
            end
        end
        COMPARE: begin
            if (count == 15) begin
                state <= UPDATE;
            end else begin
                state <= SHIFT;
            end
        end
        UPDATE: begin
            reg_remainder <= reg_quotient;
            done <= 1'b1;
            state <= IDLE;
        end
        default: state <= IDLE;
    endcase
end

endmodule

这是一个简单的32位除法器，使用了一个5位的状态机来控制流水线的执行过程。它将被除数和除数作为输入，商、余数和完成信号作为输出。你可以根据需要进行修改和扩展。