Implement initial fetch stage

1 files changed, 35 insertions, 0 deletions

diff --git a/rtl/core/fetch/fetch.sv b/rtl/core/fetch/fetch.sv
new file mode 100644
index 0000000..9b21dd2
--- /dev/null
+++ b/rtl/core/fetch/fetch.sv
@@ -0,0 +1,35 @@
+`include "core/uarch.sv"
+
+module core_fetch
+#(parameter PREFETCH_ORDER=2)
+(
+	input  logic       clk,
+	                   stall,
+	                   flush,
+	                   fetched,
+	input  logic[31:0] fetch_data,
+
+	output logic       fetch,
+	output logic[31:0] insn,
+	output logic[29:0] insn_pc,
+	                   addr
+);
+
+	logic[29:0] next_pc;
+
+	core_prefetch #(.ORDER(PREFETCH_ORDER)) prefetch
+	(
+		.*
+	);
+
+	always_ff @(posedge clk)
+		if(flush)
+			addr <= next_pc;
+		else if(fetched)
+			addr <= addr + 1;
+
+	initial begin
+		addr = 0;
+	end
+
+endmodule