diff --git a/src/drivers/libretro/libretro.c b/src/drivers/libretro/libretro.c
index 43a4d33..a83f842 100644
--- a/src/drivers/libretro/libretro.c
+++ b/src/drivers/libretro/libretro.c
@@ -1223,33 +1223,33 @@ static void check_variables(bool startup)
       bool do_reinit = false;
 
       if (!strcmp(var.value, "disabled")
-            && FSettings.overclock_enabled != 0)
+            && ppu.overclock_enabled != 0)
       {
-         FSettings.skip_7bit_overclocking = 1;
-         FSettings.extrascanlines         = 0;
-         FSettings.vblankscanlines        = 0;
-         FSettings.overclock_enabled      = 0;
+         ppu.skip_7bit_overclocking = 1;
+         ppu.extrascanlines         = 0;
+         ppu.vblankscanlines        = 0;
+         ppu.overclock_enabled      = 0;
          do_reinit              = true;
       }
       else if (!strcmp(var.value, "2x-Postrender"))
       {
-         FSettings.skip_7bit_overclocking = 1;
-         FSettings.extrascanlines         = 266;
-         FSettings.vblankscanlines        = 0;
-         FSettings.overclock_enabled      = 1;
+         ppu.skip_7bit_overclocking = 1;
+         ppu.extrascanlines         = 266;
+         ppu.vblankscanlines        = 0;
+         ppu.overclock_enabled      = 1;
          do_reinit              = true;
       }
       else if (!strcmp(var.value, "2x-VBlank"))
       {
-         FSettings.skip_7bit_overclocking = 1;
-         FSettings.extrascanlines         = 0;
-         FSettings.vblankscanlines        = 266;
-         FSettings.overclock_enabled      = 1;
+         ppu.skip_7bit_overclocking = 1;
+         ppu.extrascanlines         = 0;
+         ppu.vblankscanlines        = 266;
+         ppu.overclock_enabled      = 1;
          do_reinit              = true;
       }
 
-      FSettings.normal_scanlines = FSettings.dendy ? SCANLINES_DENDY : SCANLINES_NORMAL;
-      FSettings.totalscanlines = FSettings.normal_scanlines + (FSettings.overclock_enabled ? FSettings.extrascanlines : 0);
+      ppu.normal_scanlines = FSettings.dendy ? SCANLINES_DENDY : SCANLINES_NORMAL;
+      ppu.totalscanlines = ppu.normal_scanlines + (ppu.overclock_enabled ? ppu.extrascanlines : 0);
 
       if (do_reinit && startup)
       {
diff --git a/src/fceu.c b/src/fceu.c
index 748e7f7..7977e5c 100644
--- a/src/fceu.c
+++ b/src/fceu.c
@@ -341,14 +341,14 @@ int FCEUI_Initialize(void) {
 	FSettings.UsrLastSLine[0] = 231;
 	FSettings.UsrLastSLine[1] = 239;
 	FSettings.SoundVolume = 100;
-	FSettings.overclock_enabled = 0;
-	FSettings.skip_7bit_overclocking = 1;
-	FSettings.totalscanlines = 0;
-	FSettings.normal_scanlines = SCANLINES_NORMAL;
-	FSettings.extrascanlines = 0;
-	FSettings.vblankscanlines = 0;
 	FSettings.dendy = 0;
 	FSettings.swapDuty = 0;
+	ppu.overclock_enabled = 0;
+	ppu.skip_7bit_overclocking = 1;
+	ppu.totalscanlines = 0;
+	ppu.normal_scanlines = SCANLINES_NORMAL;
+	ppu.extrascanlines = 0;
+	ppu.vblankscanlines = 0;
 	FCEUPPU_Init();
 	X6502_Init();
 	return 1;
@@ -482,8 +482,8 @@ void FCEU_ResetVidSys(void)
    if (PAL)
       FSettings.dendy = 0;
 
-   FSettings.normal_scanlines = FSettings.dendy ? SCANLINES_DENDY : SCANLINES_NORMAL;
-   FSettings.totalscanlines = FSettings.normal_scanlines + (FSettings.overclock_enabled ? FSettings.extrascanlines : 0);
+   ppu.normal_scanlines = FSettings.dendy ? SCANLINES_DENDY : SCANLINES_NORMAL;
+   ppu.totalscanlines = ppu.normal_scanlines + (ppu.overclock_enabled ? ppu.extrascanlines : 0);
 
 	FCEUPPU_SetVideoSystem(w || FSettings.dendy);
 	SetSoundVariables();
diff --git a/src/fceu.h b/src/fceu.h
index 27be7a2..4756bda 100644
--- a/src/fceu.h
+++ b/src/fceu.h
@@ -88,14 +88,6 @@ typedef struct {
 	int soundq;
 	int lowpass;
 
-	/* PPU Overclocking */
-	int overclock_enabled;		/* 1 : enable, 0 : disable duh! */
-	int skip_7bit_overclocking;	/* 7-bit samples have priority over overclocking */
-	int extrascanlines;
-	int vblankscanlines;
-	int normal_scanlines;		/* 240 : normal, 290 : dendy */
-	int totalscanlines;
-
 	int show_crosshair;
 	int ramstate;
 	int dendy;
diff --git a/src/ppu.c b/src/ppu.c
index fdf7675..ca4ea73 100644
--- a/src/ppu.c
+++ b/src/ppu.c
@@ -64,6 +64,8 @@ static uint32 ppulut1[256];
 static uint32 ppulut2[256];
 static uint32 ppulut3[128];
 
+FCEU_PPU ppu;
+
 static void makeppulut(void) {
 	int x;
 	int y;
@@ -660,7 +662,7 @@ static void DoLine(void)
 	uint8 *target = NULL;
 	uint8 *dtarget = NULL;
 
-	if (scanline >= 240 && scanline != FSettings.totalscanlines)
+	if (scanline >= 240 && scanline != ppu.totalscanlines)
 	{
 		X6502_Run(256 + 69);
 		scanline++;
@@ -1166,10 +1168,10 @@ int FCEUPPU_Loop(int skip) {
 				TriggerNMI();
 		}
 		X6502_Run((scanlines_per_frame - 242) * (256 + 85) - 12);
-		if (FSettings.overclock_enabled && FSettings.vblankscanlines) {
-			if (!DMC_7bit || !FSettings.skip_7bit_overclocking) {
+		if (ppu.overclock_enabled && ppu.vblankscanlines) {
+			if (!DMC_7bit || !ppu.skip_7bit_overclocking) {
 				overclocking = 1;
-				X6502_Run(FSettings.vblankscanlines * (256 + 85) - 12);
+				X6502_Run(ppu.vblankscanlines * (256 + 85) - 12);
 				overclocking = 0;
 			}
 		}
@@ -1203,7 +1205,7 @@ int FCEUPPU_Loop(int skip) {
 			kook ^= 1;
 		}
 		if (GameInfo->type == GIT_NSF)
-			X6502_Run((256 + 85) * FSettings.normal_scanlines);
+			X6502_Run((256 + 85) * ppu.normal_scanlines);
 		#ifdef FRAMESKIP
 		else if (skip) {
 			int y;
@@ -1234,19 +1236,19 @@ int FCEUPPU_Loop(int skip) {
 			deemp = PPU[1] >> 5;
 
          /* manual samples can't play correctly with overclocking */
-			if (DMC_7bit && FSettings.skip_7bit_overclocking)
-				FSettings.totalscanlines = FSettings.normal_scanlines;
+			if (DMC_7bit && ppu.skip_7bit_overclocking)
+				ppu.totalscanlines = ppu.normal_scanlines;
 			else
-				FSettings.totalscanlines = FSettings.normal_scanlines + (FSettings.overclock_enabled ? FSettings.extrascanlines : 0);
+				ppu.totalscanlines = ppu.normal_scanlines + (ppu.overclock_enabled ? ppu.extrascanlines : 0);
 
-			for (scanline = 0; scanline < FSettings.totalscanlines; ) {	/* scanline is incremented in  DoLine.  Evil. :/ */
+			for (scanline = 0; scanline < ppu.totalscanlines; ) {	/* scanline is incremented in  DoLine.  Evil. :/ */
 				deempcnt[deemp]++;
 				/* if ((PPUViewer) && (scanline == PPUViewScanline)) UpdatePPUView(1); */
 				DoLine();
-				if (scanline < FSettings.normal_scanlines || scanline == FSettings.totalscanlines)
+				if (scanline < ppu.normal_scanlines || scanline == ppu.totalscanlines)
 					overclocking = 0;
 				else {
-					if (DMC_7bit && FSettings.skip_7bit_overclocking) /* 7bit sample started after 240th line */
+					if (DMC_7bit && ppu.skip_7bit_overclocking) /* 7bit sample started after 240th line */
 						break;
 					overclocking = 1;
 				}
diff --git a/src/ppu.h b/src/ppu.h
index d9cfcec..829de71 100644
--- a/src/ppu.h
+++ b/src/ppu.h
@@ -1,6 +1,18 @@
 #ifndef _FCEU_PPU_H
 #define _FCEU_PPU_H
 
+typedef struct {
+    /* PPU Overclocking */
+	int overclock_enabled;		/* 1 : enable, 0 : disable duh! */
+	int skip_7bit_overclocking;	/* 7-bit samples have priority over overclocking */
+	int extrascanlines;
+	int vblankscanlines;
+	int normal_scanlines;		/* 240 : normal, 290 : dendy */
+	int totalscanlines;
+} FCEU_PPU;
+
+extern FCEU_PPU ppu;
+
 void FCEUPPU_Init(void);
 void FCEUPPU_Reset(void);
 void FCEUPPU_Power(void);
diff --git a/src/video.c b/src/video.c
index d54be19..80da854 100644
--- a/src/video.c
+++ b/src/video.c
@@ -52,15 +52,15 @@ int FCEU_InitVirtualVideo(void)
 {
    /* 256 bytes per scanline, * 240 scanline maximum, +8 for alignment, */
    if (!XBuf)
-      XBuf = (uint8*)(FCEU_malloc(256 * (256 + FSettings.extrascanlines + 8)));
+      XBuf = (uint8*)(FCEU_malloc(256 * (256 + ppu.extrascanlines + 8)));
    if (!XDBuf)
-      XDBuf = (uint8*)(FCEU_malloc(256 * (256 + FSettings.extrascanlines + 8)));
+      XDBuf = (uint8*)(FCEU_malloc(256 * (256 + ppu.extrascanlines + 8)));
 
    if (!XBuf || !XDBuf)
       return 0;
 
-   memset(XBuf, 128, 256 * (256 + FSettings.extrascanlines + 8));
-   memset(XDBuf, 128, 256 * (256 + FSettings.extrascanlines + 8));
+   memset(XBuf, 128, 256 * (256 + ppu.extrascanlines + 8));
+   memset(XDBuf, 128, 256 * (256 + ppu.extrascanlines + 8));
    return 1;
 }