Fix Quartus issues

3 files changed, 12 insertions, 6 deletions

diff --git a/rtl/core/cycles.sv b/rtl/core/cycles.sv
index d52c0b0..c5ad62f 100644
--- a/rtl/core/cycles.sv
+++ b/rtl/core/cycles.sv
@@ -39,7 +39,6 @@ module core_cycles
 
 	always_ff @(posedge clk) begin
 		cycle <= next_cycle;
-		stall <= next_cycle != EXECUTE;
 		flags <= next_flags;
 
 		if(next_cycle == EXECUTE) begin
diff --git a/rtl/core/decode/decode.sv b/rtl/core/decode/decode.sv
index 57744e1..508467d 100644
--- a/rtl/core/decode/decode.sv
+++ b/rtl/core/decode/decode.sv
@@ -59,7 +59,7 @@ module core_decode
 		rd = 4'bxxxx;
 		data_op = 4'bxxxx;
 
-		priority case(insn `FIELD_OP) inside
+		priority casez(insn `FIELD_OP)
 			`GROUP_B: begin
 				branch = 1;
 				if(branch_link) begin
diff --git a/rtl/core/regs/file.sv b/rtl/core/regs/file.sv
index 1b10682..e2bcc09 100644
--- a/rtl/core/regs/file.sv
+++ b/rtl/core/regs/file.sv
@@ -13,12 +13,19 @@ module core_reg_file
 
 	// Ver comentario en uarch.sv
 	word file[30];
+	word q, wr_value_hold;
+	logic overwrite_hold;
 
-	always @(posedge clk)
-		if(wr_enable)
+	assign rd_value = overwrite_hold ? wr_value_hold : q;
+
+	always @(posedge clk) begin
+		if(wr_enable) begin
 			file[rd_index] <= wr_value;
+			wr_value_hold <= wr_value;
+		end
 
-	always @(posedge clk)
-		rd_value <= wr_enable & (rd_index == wr_index) ? wr_value : file[rd_index];
+		q <= file[rd_index];
+		overwrite_hold <= wr_enable & (rd_index == wr_index);
+	end
 
 endmodule