From 2b9a9dc05b5c4abdf5dac5ceba9300734d4f1b65 Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Sat, 26 Jan 2013 14:47:59 -0500
Subject: Decide whether SuperFX and SA-1 chips are enabled only once per
 frame. This saves a few million instructions per second. (Inspired by
 Snes9x-Euphoria)

---
 source/dma.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'source/dma.cpp')

diff --git a/source/dma.cpp b/source/dma.cpp
index 2addceb..96f705f 100644
--- a/source/dma.cpp
+++ b/source/dma.cpp
@@ -855,8 +855,12 @@ void S9xDoDMA (uint8 Channel)
     IAPU.APUExecuting = Settings.APUEnabled;
     APU_EXECUTE ();
 #endif
-    while (CPU.Cycles > CPU.NextEvent)
-		S9xDoHBlankProcessing ();
+	if (Settings.SuperFX)
+		while (CPU.Cycles > CPU.NextEvent)
+			S9xDoHBlankProcessing_SFX ();
+	else /* if (!Settings.SuperFX) */
+		while (CPU.Cycles > CPU.NextEvent)
+			S9xDoHBlankProcessing_NoSFX ();
 
 	if(Settings.SPC7110&&spc7110_dma)
 	{
-- 
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