Avoid stall when actual branch

2024-07-12 00:17:33 +08:00
parent ee78aabc48
commit c8a110e740
1 changed files with 3 additions and 1 deletions
--- a/PipelineProcessor.srcs/sources_1/new/InstFetch.v
+++ b/PipelineProcessor.srcs/sources_1/new/InstFetch.v
@@ -26,7 +26,9 @@ module InstFetch (
        if (reset) begin
            PC <= 32'h00000000;
        end else begin
-            if (need_stall) begin
+            // Note: if the inst is branch followed by a load word, the stall of the load word
+            // will prevent the branch from jump
+            if (need_stall == 1'h1 && PC_branch == 1'h0) begin
                PC <= PC;
            end else begin
                if (PC_branch) begin