Add fetch module

[firearm.git] / system.v

diff --git a/system.v b/system.v
index a653ea12bbc1145b4484f80528845e3bd03f0f23..ebf0882701fa91b275cb64ef0f28c5e59fcc2099 100644 (file)
--- a/system.v
+++ b/system.v
@@ -1,10 +1,11 @@
 `define BUS_ICACHE 0
 
-module System();
+module System(input clk);
        wire [7:0] bus_req;
        wire [7:0] bus_ack;
        wire [31:0] bus_addr;
-       wire [31:0] bus_data;
+       wire [31:0] bus_rdata;
+       wire [31:0] bus_wdata;
        wire bus_rd, bus_wr;
        wire bus_ready;
        
@@ -15,16 +16,30 @@ module System();
        wire bus_rd_icache;
        wire bus_wr_icache;
        
+       wire [31:0] bus_rdata_blockram;
+       wire bus_ready_blockram;
+       
        assign bus_addr = bus_addr_icache;
-       assign bus_data = bus_wdata_icache;
+       assign bus_rdata = bus_rdata_blockram;
+       assign bus_wdata = bus_wdata_icache;
        assign bus_rd = bus_rd_icache;
        assign bus_wr = bus_wr_icache;
+       assign bus_ready = bus_ready_blockram;
 
        BusArbiter busarbiter(.bus_req(bus_req), .bus_ack(bus_ack));
-       ICache(
+
+       ICache icache(
+               .clk(clk),
                .rd_addr(), .rd_req(), .rd_wait(), .rd_data(),
                .bus_req(bus_req_icache), .bus_ack(bus_ack_icache),
-               .bus_addr(bus_addr_icache), .bus_rdata(bus_data),
+               .bus_addr(bus_addr_icache), .bus_rdata(bus_rdata),
                .bus_wdata(bus_wdata_icache), .bus_rd(bus_rd_icache),
                .bus_wr(bus_wr_icache), .bus_ready(bus_ready));
+
+       BlockRAM blockram(
+               .clk(clk),
+               .bus_addr(bus_addr), .bus_rdata(bus_rdata_blockram),
+               .bus_wdata(bus_wdata), .bus_rd(bus_rd), .bus_wr(bus_wr),
+               .bus_ready(bus_ready_blockram));
+
 endmodule