2023-02-28 02:22:34 +00:00
|
|
|
`include "timescale.sv"
|
2023-01-01 22:28:56 +00:00
|
|
|
|
2023-02-28 02:22:34 +00:00
|
|
|
module rotate_cru#(
|
2023-01-01 22:28:56 +00:00
|
|
|
parameter ADDR_SIZE = 32,
|
|
|
|
|
parameter NUM_SETS = 16,
|
|
|
|
|
parameter NUM_WAYS = 4,
|
|
|
|
|
parameter BLOCK_SIZE = 32
|
|
|
|
|
)(
|
|
|
|
|
input logic clk, rst,
|
|
|
|
|
input logic replace,
|
|
|
|
|
output logic[LRU_INDEX_SIZE - 1:0] preferred
|
|
|
|
|
);
|
|
|
|
|
logic[LRU_INDEX_SIZE - 1:0] write_preference;
|
|
|
|
|
|
|
|
|
|
always_comb begin
|
|
|
|
|
preferred = write_preference;
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
always_ff @(posedge clk) begin
|
|
|
|
|
if (rst)
|
|
|
|
|
write_preference <= 0;
|
|
|
|
|
else if(replace)
|
|
|
|
|
write_preference += 1;
|
|
|
|
|
end
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
endmodule
|
