Fix branching bugs

2 files changed, 4 insertions, 3 deletions

diff --git a/rtl/core/regs/file.sv b/rtl/core/regs/file.sv
index e2bcc09..b2dd634 100644
--- a/rtl/core/regs/file.sv
+++ b/rtl/core/regs/file.sv
@@ -18,9 +18,9 @@ module core_reg_file
 
 	assign rd_value = overwrite_hold ? wr_value_hold : q;
 
-	always @(posedge clk) begin
+	always @(negedge clk) begin
 		if(wr_enable) begin
-			file[rd_index] <= wr_value;
+			file[wr_index] <= wr_value;
 			wr_value_hold <= wr_value;
 		end
 
diff --git a/rtl/core/regs/regs.sv b/rtl/core/regs/regs.sv
index 182b240..247c120 100644
--- a/rtl/core/regs/regs.sv
+++ b/rtl/core/regs/regs.sv
@@ -30,6 +30,7 @@ module core_regs
 	assign pc_word = {pc_visible, 2'b00};
 	assign rd_value_a = rd_pc_a ? pc_word : file_rd_value_a;
 	assign rd_value_b = rd_pc_b ? pc_word : file_rd_value_b;
+	assign file_wr_enable = wr_enable & ~wr_pc;
 	assign branch = wr_enable & wr_pc;
 
 	core_reg_file a
@@ -44,7 +45,7 @@ module core_regs
 	(
 		.rd_index(rd_index_b),
 		.rd_value(file_rd_value_b),
-		.wr_enable(wr_enable & ~wr_pc),
+		.wr_enable(file_wr_enable),
 		.*
 	);