From: Toni Wilen <twilen@winuae.net>
Date: Sat, 14 Oct 2017 17:44:47 +0000 (+0300)
Subject: Do not do useless writes.
X-Git-Tag: 3600~80
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=1389694743950c63330c87aece1747a8f67269db;p=francis%2Fwinuae.git

Do not do useless writes.
---

diff --git a/newcpu.cpp b/newcpu.cpp
index 40968df3..ad4bb5f5 100644
--- a/newcpu.cpp
+++ b/newcpu.cpp
@@ -8725,9 +8725,11 @@ static void fill_icache020 (uae_u32 addr, bool opcode)
 	data = icache_fetch(addr);
 	end_020_cycle_prefetch(opcode);
 
-	if (!(regs.cacr & 2)) {
+	if (!(regs.cacr & 1)) {
+		c->valid = false;
+	} else if (!(regs.cacr & 2)) {
 		c->tag = tag;
-		c->valid = !!(regs.cacr & 1);
+		c->valid = true;
 		c->data = data;
 	}
 	regs.cacheholdingaddr020 = addr;