diff --git a/desmume/src/cocoa/cocoa_input.mm b/desmume/src/cocoa/cocoa_input.mm
index b54ab0fb2..89548d02a 100644
--- a/desmume/src/cocoa/cocoa_input.mm
+++ b/desmume/src/cocoa/cocoa_input.mm
@@ -573,7 +573,7 @@ SineWaveGenerator sineWaveGenerator(250.0, MIC_SAMPLE_RATE);
 		theSample = sampleGenerator->generateSample();
 	}
 	
-	_hwMicLevelList->push_back(abs((float)theSample - MIC_NULL_SAMPLE_VALUE));
+	_hwMicLevelList->push_back(fabs((float)theSample - MIC_NULL_SAMPLE_VALUE));
 	return theSample;
 }
 
diff --git a/desmume/src/cocoa/cocoa_rom.mm b/desmume/src/cocoa/cocoa_rom.mm
index 4271b3e3c..7b2153c89 100644
--- a/desmume/src/cocoa/cocoa_rom.mm
+++ b/desmume/src/cocoa/cocoa_rom.mm
@@ -151,22 +151,19 @@ static NSMutableDictionary *saveTypeValues = nil;
 		return;
 	}
 	
-	if (&ndsRomBanner != NULL)
-	{
-		[self.header setValue:[self banner:ndsRomBanner.titles[0]] forKey:@"bannerJapanese"];
-		[self.header setValue:[self banner:ndsRomBanner.titles[1]] forKey:@"bannerEnglish"];
-		[self.header setValue:[self banner:ndsRomBanner.titles[2]] forKey:@"bannerFrench"];
-		[self.header setValue:[self banner:ndsRomBanner.titles[3]] forKey:@"bannerGerman"];
-		[self.header setValue:[self banner:ndsRomBanner.titles[4]] forKey:@"bannerItalian"];
-		[self.header setValue:[self banner:ndsRomBanner.titles[5]] forKey:@"bannerSpanish"];
-		
-		[self.bindings setValue:[self.header objectForKey:@"bannerJapanese"] forKey:@"bannerJapanese"];
-		[self.bindings setValue:[self.header objectForKey:@"bannerEnglish"] forKey:@"bannerEnglish"];
-		[self.bindings setValue:[self.header objectForKey:@"bannerFrench"] forKey:@"bannerFrench"];
-		[self.bindings setValue:[self.header objectForKey:@"bannerGerman"] forKey:@"bannerGerman"];
-		[self.bindings setValue:[self.header objectForKey:@"bannerItalian"] forKey:@"bannerItalian"];
-		[self.bindings setValue:[self.header objectForKey:@"bannerSpanish"] forKey:@"bannerSpanish"];
-	}
+	[self.header setValue:[self banner:ndsRomBanner.titles[0]] forKey:@"bannerJapanese"];
+	[self.header setValue:[self banner:ndsRomBanner.titles[1]] forKey:@"bannerEnglish"];
+	[self.header setValue:[self banner:ndsRomBanner.titles[2]] forKey:@"bannerFrench"];
+	[self.header setValue:[self banner:ndsRomBanner.titles[3]] forKey:@"bannerGerman"];
+	[self.header setValue:[self banner:ndsRomBanner.titles[4]] forKey:@"bannerItalian"];
+	[self.header setValue:[self banner:ndsRomBanner.titles[5]] forKey:@"bannerSpanish"];
+	
+	[self.bindings setValue:[self.header objectForKey:@"bannerJapanese"] forKey:@"bannerJapanese"];
+	[self.bindings setValue:[self.header objectForKey:@"bannerEnglish"] forKey:@"bannerEnglish"];
+	[self.bindings setValue:[self.header objectForKey:@"bannerFrench"] forKey:@"bannerFrench"];
+	[self.bindings setValue:[self.header objectForKey:@"bannerGerman"] forKey:@"bannerGerman"];
+	[self.bindings setValue:[self.header objectForKey:@"bannerItalian"] forKey:@"bannerItalian"];
+	[self.bindings setValue:[self.header objectForKey:@"bannerSpanish"] forKey:@"bannerSpanish"];
 	
 	if (ndsRomHeader != NULL)
 	{
@@ -665,12 +662,6 @@ void RomIconToRGBA8888(uint32_t *bitmapData)
 		return;
 	}
 	
-	if (&ndsRomBanner == NULL)
-	{
-		memset(bitmapData, 0, 4096); // 4096 bytes = 32px * 32px * sizeof(uint32_t)
-		return;
-	}
-	
 	// Set all of our icon read pointers.
 	iconClutPtr = (uint16_t *)ndsRomBanner.palette + 1;
 	iconPixPtr = (uint32_t *)ndsRomBanner.bitmap;
diff --git a/desmume/src/cocoa/utilities.c b/desmume/src/cocoa/utilities.c
index dd58d9602..2db026a16 100644
--- a/desmume/src/cocoa/utilities.c
+++ b/desmume/src/cocoa/utilities.c
@@ -381,7 +381,7 @@ CGSize GetTransformedBounds(const double normalBoundsWidth, const double normalB
 	}
 	else
 	{
-		transformBounds.width = abs(x[1] - x[3]);
+		transformBounds.width = fabs(x[1] - x[3]);
 	}
 	
 	// Determine the transformed height, which is dependent on the location of
@@ -418,7 +418,7 @@ CGSize GetTransformedBounds(const double normalBoundsWidth, const double normalB
 	}
 	else
 	{
-		transformBounds.height = abs(y[3] - y[1]);
+		transformBounds.height = fabs(y[3] - y[1]);
 	}
 	
 	return transformBounds;