From 305cafc8c8523f499e8a1c5935c854c8bed37c93 Mon Sep 17 00:00:00 2001
From: jSTE0 <98854293+jSTE0@users.noreply.github.com>
Date: Fri, 4 Feb 2022 22:48:48 +0000
Subject: [PATCH] gfx: Use simpler equality test for IPPU.FrameCount

As it's only incremented here and then reset to 0, avoids integer
division, which can be be expensive on CPUs without this instruction
such as pre-ARMv7 classic ARMs.
---
 gfx.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gfx.cpp b/gfx.cpp
index bbeae228..e73b7d1a 100644
--- a/gfx.cpp
+++ b/gfx.cpp
@@ -191,7 +191,7 @@ void S9xStartScreenRefresh (void)
 		memset(GFX.SubZBuffer, 0, GFX.ScreenSize);
 	}
 
-	if (++IPPU.FrameCount % Memory.ROMFramesPerSecond == 0)
+	if (++IPPU.FrameCount == (uint32)Memory.ROMFramesPerSecond)
 	{
 		IPPU.DisplayedRenderedFrameCount = IPPU.RenderedFramesCount;
 		IPPU.RenderedFramesCount = 0;