zpu_iram.py

from myhdl import *
 
def RAM(dout, din, addr, we, clk, WORD_SZ=8, DEPTH=16384):
    """
 
    """
 
    mem = [Signal(intbv(0)[WORD_SZ:]) for i in range(DEPTH)]
 
    @always(clk.posedge)
    def write():
        if we:
            mem[int(addr)].next = din
 
    @always_comb
    def read():
        dout.next = mem[int(addr)]
 
    return write, read