加入移位運算元

遺忘地方： - 使用過往重置直接在運算地方重置

Author: timmy61109

example/mips/shift_microoperation.v

@@ -0,0 +1,30 @@
+module shift_microoperation (
+ clock,
+ reset,
+ a_in,
+ lift_serial_input,
+ right_serial_input,
+ selective_set,
+ data
+);
+ input clock, reset;
+ input [3:0] a_in;
+ input lift_serial_input;
+ input right_serial_input;
+ input selective_set;
+ output [3:0] data;
+
+ reg [3:0] data;
+
+ always @ (posedge clock) begin
+ if (reset) begin
+ data = 0; 
+ end else begin
+ case (selective_set)
+ 0: data = {right_serial_input, a_in[3:1]};
+ 1: data = {a_in[2:0], lift_serial_input};
+ endcase
+ end
+ end
+
+endmodule