Initial work on reading instructions from bootROM

rtl/shared/rom.sv

@@ -0,0 +1,24 @@
+module rom #(
+    parameter string           FILE_NAME = "",
+    parameter integer unsigned ADDR_W = 8,
+    parameter integer unsigned DATA_W = 8
+) (
+    input  logic              clk_i,
+    input  logic [ADDR_W-1:0] address_i,
+
+    output logic [DATA_W-1:0] rdata_o
+);
+
+localparam ROM_SIZE = 2**ADDR_W;
+
+logic [DATA_W-1:0] rom [ROM_SIZE-1:0];
+
+always_ff @(posedge clk_i)
+    rdata_o <= rom[address_i];
+
+initial begin
+    static integer fd = $fopen(FILE_NAME, "rb");
+    void'($fread(rom, fd));
+end
+
+endmodule : rom