ram.v

8位RISC CPU,包括alu,count,machine等等

module ram(data,addr,ena,read,write);
inout[7:0] data;
input[9:0] addr;
input ena;
input read,write;
reg [7:0] ram[10'h3ff:0];
assign data=(read&&ena)?ram[addr]:8'hzz;
always@(posedge write)
  begin
    ram[addr]<=data;
  end
endmodule