From: Joshua Wise <joshua@rebirth.joshuawise.com>
Date: Thu, 22 Jan 2009 07:59:16 +0000 (-0500)
Subject: Execute: Branches allow somebody else to take precedence by not branching if outstall... 
X-Git-Url: http://git.joshuawise.com/firearm.git/commitdiff_plain/04281f327495d65a89aaae133be469dbef7c5638?hp=59680e79c8283984a36efdc1f4a295bb6a7cf2c3

Execute: Branches allow somebody else to take precedence by not branching if outstall is asserted.  outstall must be low for at least one clock cycle, so the branch is guaranteed to eventually happen if it is in fact legitimate and not shot down.
---

diff --git a/Execute.v b/Execute.v
index 7dcc4b9..289ffbb 100644
--- a/Execute.v
+++ b/Execute.v
@@ -188,7 +188,7 @@ module Execute(
 		begin end
 		`DECODE_BRANCH:
 		begin
-			if(!inbubble && !flush && !delayedflush) begin
+			if(!inbubble && !flush && !delayedflush && !outstall /* Let someone else take precedence. */) begin
 				jmppc = pc + op0 + 32'h8;
 				if(insn[24]) begin
 					next_write_reg = 1;