dat_mem.sv

// Create Date:    2022.05.05
// Module Name:    dat_mem 
//
// works as a ROM, register file, or RAM 
// $clog2(N) = ceiling (log2(N)) -- use to determine pointer width needed
// two-dimensional array
// default size = 8 bits wide x 256 words deep, 
//   where each word is one byte wide, in this case 
// writes are clocked/sequential; reads are combinational
module dat_mem #(parameter W=8, byte_count=256)(
  input                           clk,
                                  write_en,  // write (store) enable
  input  [$clog2(byte_count)-1:0] raddr,     // read pointer
                                  waddr,     // write (store) pointer
  input  [ W-1:0]                 data_in,
  output [ W-1:0]                 data_out
    );

// W bits wide [W-1:0] and byte_count registers deep 	 
logic [W-1:0] core[byte_count];	 

// combinational reads from Memory using raddr 
//TODO

// sequential (clocked) writes, with enable to prevent accidental overwrites	
//TODO