//4×4 查找表乘法器 module mult4x4(out,a,b,clk) output[7:0] out input[3:0] a,b input clk reg[7:0] out reg[1:0] firsta,firstb reg[1:0] seconda,secondb wire[3:0] outa,outb,outc,outd always @(posedge clk) begin firsta = a[3:2] se