From 09334d546982a354ccf73e64966191aac2d22083 Mon Sep 17 00:00:00 2001
From: Jonathan Teh
Date: Tue, 22 Feb 2022 23:01:27 +0000
Subject: 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.
---
 source/gfx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/gfx.c b/source/gfx.c
index 85b58f3..5eac5b9 100644
--- a/source/gfx.c
+++ b/source/gfx.c
@@ -423,7 +423,7 @@ void S9xStartScreenRefresh(void)
       GFX.Delta = (GFX.SubScreen - GFX.Screen) >> 1;
    }
 
-   if (++IPPU.FrameCount % Memory.ROMFramesPerSecond == 0)
+   if (++IPPU.FrameCount == (uint32_t)Memory.ROMFramesPerSecond)
       IPPU.FrameCount = 0;
 }
 
-- 
cgit v1.2.3