output reg bus_req,
input bus_ack,
output reg [31:0] bus_addr,
- input [31:0] bus_data
+ input [31:0] bus_data,
output reg bus_rd,
output wire bus_wr,
input bus_ready);
reg cache_valid [15:0];
reg [21:0] cache_tags [15:0];
- reg [31:0] cache_data [15:0] [7:0];
+ reg [31:0] cache_data [15:0 /* line */] [15:0 /* word */];
+ reg [3:0] i;
initial
- for (i = 0; i < 16; i = i + 1)
- cache_valid[i] <= 0;
+ for (i = 0; i <= 15; i = i + 1)
+ cache_valid[i] = 0;
wire [5:0] rd_didx = rd_addr[5:0];
wire [3:0] rd_didx_word = rd_didx[5:2];
end
reg [3:0] cache_fill_pos = 0;
- always @(*) begin
+ always @(*)
if (rd_req && !cache_hit) begin
bus_req = 1;
if (bus_ack) begin