Memory: Add STRB support, en manera de A.

[firearm.git] / ICache.v

diff --git a/ICache.v b/ICache.v
index 8106259ef9a175a417ab22ccbe849f1b02d7deef..d9fbf04b6f07858a01d965647a989a5231cd3ae3 100644 (file)
--- a/ICache.v
+++ b/ICache.v
@@ -32,7 +32,7 @@ module ICache(
        reg [21:0] cache_tags [15:0];
        reg [31:0] cache_data [15:0 /* line */] [15:0 /* word */];
        
        reg [21:0] cache_tags [15:0];
        reg [31:0] cache_data [15:0 /* line */] [15:0 /* word */];
        

-       reg [4:0] i;
+       integer i;

        initial
                for (i = 0; i < 16; i = i + 1)
                begin
        initial
                for (i = 0; i < 16; i = i + 1)
                begin


@@ -70,14 +70,16 @@ module ICache(
                if (cache_fill_pos != 0 && ((prev_rd_addr != {rd_addr[31:6], 6'b0}) || cache_hit))      /* If this wasn't from the same line, or we've moved on somehow, reset the fill circuitry. */
                        cache_fill_pos <= 0;
                else if (rd_req && !cache_hit) begin
                if (cache_fill_pos != 0 && ((prev_rd_addr != {rd_addr[31:6], 6'b0}) || cache_hit))      /* If this wasn't from the same line, or we've moved on somehow, reset the fill circuitry. */
                        cache_fill_pos <= 0;
                else if (rd_req && !cache_hit) begin

-                       if (bus_ready) begin    /* Started the fill, and we have data. */
+                       if (bus_ack && bus_ready) begin /* Started the fill, and we have data. */

                                $display("ICACHE: FILL: rd addr %08x; bus addr %08x; bus data %08x", rd_addr, bus_addr, bus_rdata);
                                cache_data[rd_idx][cache_fill_pos] <= bus_rdata;
                                cache_fill_pos <= cache_fill_pos + 1;
                                if (cache_fill_pos == 15) begin /* Done? */
                                        cache_tags[rd_idx] <= rd_tag;
                                        cache_valid[rd_idx] <= 1;
                                $display("ICACHE: FILL: rd addr %08x; bus addr %08x; bus data %08x", rd_addr, bus_addr, bus_rdata);
                                cache_data[rd_idx][cache_fill_pos] <= bus_rdata;
                                cache_fill_pos <= cache_fill_pos + 1;
                                if (cache_fill_pos == 15) begin /* Done? */
                                        cache_tags[rd_idx] <= rd_tag;
                                        cache_valid[rd_idx] <= 1;

-                               end
+                                       $display("ICACHE: Fill complete for line %x, tag %x", rd_idx, rd_tag);
+                               end else
+                                       cache_valid[rd_idx] <= 0;

                        end
                end
        end
                        end
                end
        end