[Modified] Switch soc_top&board to axi&xc7a200t

lacpu/rtl/mycpu/tools.v

@@ -0,0 +1,54 @@
+`default_nettype wire
+module decoder_2_4(
+    input  [ 1:0] in,
+    output [ 3:0] out
+);
+
+genvar i;
+generate for (i=0; i<4; i=i+1) begin : gen_for_dec_2_4
+    assign out[i] = (in == i);
+end endgenerate
+
+endmodule
+
+
+module decoder_4_16(
+    input  [ 3:0] in,
+    output [15:0] out
+);
+
+genvar i;
+generate for (i=0; i<16; i=i+1) begin : gen_for_dec_4_16
+    assign out[i] = (in == i);
+end endgenerate
+
+endmodule
+
+
+module decoder_5_32(
+    input  [ 4:0] in,
+    output [31:0] out
+);
+
+genvar i;
+generate for (i=0; i<32; i=i+1) begin : gen_for_dec_5_32
+    assign out[i] = (in == i);
+end endgenerate
+
+endmodule
+
+
+module decoder_6_64(
+    input  [ 5:0] in,
+    output [63:0] out
+);
+
+genvar i;
+generate for (i=0; i<64; i=i+1) begin : gen_for_dec_6_64  //bug7
+    assign out[i] = (in == i);
+end endgenerate
+
+endmodule
+
+
+