(svn r117) Feature: Performance details window in company league menu (TrueLight)

1 files changed, 11 insertions, 4 deletions

diff --git a/misc.c b/misc.c
index 06e790019..5f86d8445 100644
--- a/misc.c
+++ b/misc.c
@@ -601,11 +601,18 @@ void IncreaseDate()
 	/* XXX: check if year 2050 was reached */
 }
 
-int FindFirstBit(uint32 x)
+int FindFirstBit(uint32 value)
 {
-	int i = 0;
-	assert(x != 0);
-	for(;!(x&1);i++,x>>=1);
+	// This is much faster then the one that was before here.
+	//  Created by Darkvater.. blame him if it is wrong ;)
+	// Btw, the macro FINDFIRSTBIT is better to use when your value is
+	//  not more then 128.
+	byte i = 0;
+	if (value & 0xffff0000) { value >>= 16; i += 16; }
+	if (value & 0x0000ff00) { value >>= 8;  i += 8; }
+	if (value & 0x000000f0) { value >>= 4;  i += 4; }
+	if (value & 0x0000000c) { value >>= 2;  i += 2; }
+	if (value & 0x00000002) { i += 1; }
 	return i;
 }