dsp: Mark function-scope const arrays as static

Avoids recreating the arrays on the stack on every entry to the function and moves them to the ro section.
snes9xgit · Feb 4, 2022 · 423361e · 423361e
1 parent 305cafc
commit 423361e
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Showing 3 changed files with 5 additions and 5 deletions.
diff --git a/dsp1.cpp b/dsp1.cpp
@@ -522,7 +522,7 @@ static void DSP1_Op0C (void)
 
 static void DSP1_Parameter (int16 Fx, int16 Fy, int16 Fz, int16 Lfe, int16 Les, int16 Aas, int16 Azs, int16 *Vof, int16 *Vva, int16 *Cx, int16 *Cy)
 {
-	const int16	MaxAZS_Exp[16] =
+	static const int16	MaxAZS_Exp[16] =
 	{
 		0x38b4, 0x38b7, 0x38ba, 0x38be, 0x38c0, 0x38c4, 0x38c7, 0x38ca,
 		0x38ce,	0x38d0, 0x38d4, 0x38d7, 0x38da, 0x38dd, 0x38e0, 0x38e4

diff --git a/dsp3.cpp b/dsp3.cpp
@@ -929,12 +929,12 @@ static void DSP3_OP1E_D (int16 move, int16 *lo, int16 *hi)
 
 static void DSP3_OP1E_D1 (int16 move, int16 *lo, int16 *hi)
 {
-	const uint16	HiAdd[] =
+	static const uint16	HiAdd[] =
 	{
 		0x00, 0xFF, 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x01, 0x00, 0xFF, 0x00
 	};
 
-	const uint16	LoAdd[] =
+	static const uint16	LoAdd[] =
 	{
 		0x00, 0x00, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x00
 	};

diff --git a/dsp4.cpp b/dsp4.cpp
@@ -90,7 +90,7 @@ static int32 DSP4_READ_DWORD (void)
 static int16 DSP4_Inverse (int16 value)
 {
 	// Attention: This lookup table is not verified
-	const uint16	div_lut[64] =
+	static const uint16	div_lut[64] =
 	{
 		0x0000, 0x8000, 0x4000, 0x2aaa, 0x2000, 0x1999, 0x1555, 0x1249,
 		0x1000, 0x0e38, 0x0ccc, 0x0ba2, 0x0aaa, 0x09d8, 0x0924, 0x0888,
@@ -1080,7 +1080,7 @@ static void DSP4_OP09 (void)
 
 static void DSP4_OP0A (int16 n2, int16 *o1, int16 *o2, int16 *o3, int16 *o4)
 {
-	const uint16	OP0A_Values[16] =
+	static const uint16	OP0A_Values[16] =
 	{
 		0x0000, 0x0030, 0x0060, 0x0090, 0x00c0, 0x00f0, 0x0120, 0x0150,
 		0xfe80, 0xfeb0, 0xfee0, 0xff10, 0xff40, 0xff70, 0xffa0, 0xffd0