X-Git-Url: http://git.joshuawise.com/firearm.git/blobdiff_plain/52fd78ff62b919c5dd5e59af2550e4ff733816a1..4dc317445bd5132ca57744d7faf27731ea10d3b9:/DCache.v?ds=inline diff --git a/DCache.v b/DCache.v index edfcde1..ccaa6b1 100644 --- a/DCache.v +++ b/DCache.v @@ -30,8 +30,8 @@ module DCache( reg cache_valid [15:0]; 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 @@ -80,12 +80,14 @@ module DCache( cache_fill_pos <= 0; else if (rd_req && !cache_hit) begin if (bus_ready && bus_ack) begin /* Started the fill, and we have data. */ + $display("DCACHE: FILL: rd addr %08x; bus addr %08x; bus data %08x, bus_req %d, bus_ack %d", addr, bus_addr, bus_rdata, bus_req, bus_ack); cache_data[idx][cache_fill_pos] <= bus_rdata; cache_fill_pos <= cache_fill_pos + 1; if (cache_fill_pos == 15) begin /* Done? */ cache_tags[idx] <= tag; cache_valid[idx] <= 1; - end + end else + cache_valid[idx] <= 0; end end else if (wr_req && cache_hit) cache_data[idx][addr[5:2]] = wr_data;