Fri Apr 19 16:07:00 CST 2024 inscode

inscode.nix

-{ pkgs }: {
-    deps = [
-        
-    ];
-}
+module abs_dif(aIn,bIn,out);
+    //输入输出端口
+    input [3:0] aIn,bIn;
+    output[3:0] out;
+
+    //创建比较器实例
+    wire agb;
+    comp #(.n(4))comp_inst(.a(aIn),.b(bIn),.agb(agb),.aeb(),.alb());
+    
+    //创建选择器实例
+    wire[3:0] max,min;
+    mux_2to1 #(.n(4))mux1(.out(max),.in0(aIn),.in1(bIn),.addr(~agb));
+    mux_2to1 #(.n(4))mux2(.out(min),.in0(aIn),.in1(bIn),.addr(agb));
+   
+    //创建全加器实例
+    wire[2:0] c;
+    full_adder adder0(.a(max[0]),.b(~min[0]),.s(out[0]),.ci(1'b1),.co(c[0]));
+    full_adder adder1(.a(max[1]),.b(~min[1]),.s(out[1]),.ci(c[0]),.co(c[1]));
+    full_adder adder2(.a(max[2]),.b(~min[2]),   .s(out[2]),.ci(c[1]),.co(c[2]));
+    full_adder adder3(.a(max[3]),.b(~min[3]),.s(out[3]),.ci(c[2]),.co());
+endmodule
+