1 files changed, 77 insertions, 21 deletions
diff --git a/code/handmade_intrinsics.h b/code/handmade_intrinsics.h
index 2a3a69e..00b2769 100644
--- a/code/handmade_intrinsics.h
+++ b/code/handmade_intrinsics.h
@@ -3,75 +3,98 @@
 #ifndef HANDMADE_INTRINSICS_H
 #define HANDMADE_INTRINSICS_H
 
+#if COMPILER_GNU
+#include <x86intrin.h>
+#endif
 //
 // TODO(casey): Remove math.h
 //
 #include <math.h>
 
-inline s32
-RoundReal32ToInt32(r32 Real32)
+inline
+s32 SignOf(s32 Value)
+{
+    s32 Result = (Value >= 0) ? 1 : -1;
+    return Result;
+}
+
+inline 
+r32 AbsoluteValue(r32 Real32)
+{
+    r32 Result = fabs(Real32);
+    return Result;
+}
+
+inline 
+s32 RoundReal32ToInt32(r32 Real32)
 {
     s32 Result = (s32)(roundf(Real32));
     return Result;
 }
 
-inline u32
-RoundReal32ToUInt32(r32 Real32)
+inline 
+u32 RoundReal32ToUInt32(r32 Real32)
 {
     u32 Result = (u32)(roundf(Real32));
     return Result;
 }
 
-inline u32
-TruncateReal32ToUInt32(r32 Real32)
+inline 
+u32 TruncateReal32ToUInt32(r32 Real32)
 {
     u32 Result = (u32)Real32;
     return Result;
 }
 
-inline s32
-TruncateReal32ToInt32(r32 Real32)
+inline 
+s32 TruncateReal32ToInt32(r32 Real32)
 {
     s32 Result = (s32)Real32;
     return Result;
 }
 
-inline s32
-FloorReal32ToInt32(r32 Real32)
+inline 
+s32 FloorReal32ToInt32(r32 Real32)
 {
     s32 Result = (s32)floorf(Real32);
     return Result;
 }
 
-inline r32
-Sin(r32 Angle)
+inline 
+s32 CeilReal32ToInt32(r32 Real32)
+{
+    s32 Result = (s32)ceilf(Real32);
+    return Result;
+}
+inline 
+r32 Sin(r32 Angle)
 {
     r32 Result = sinf(Angle);
     return Result;
 }
 
-inline r32
-Cos(r32 Angle)
+inline 
+r32 Cos(r32 Angle)
 {
     r32 Result = cosf(Angle);
     return Result;
 }
 
-inline r32
-Atan2(r32 Y, r32 X)
+inline 
+r32 Atan2(r32 Y, r32 X)
 {
     r32 Result = atan2f(Y, X);
     return Result;
+    
 }
-
 struct bit_scan_result
 {
     b32 Found;
     u32 Index;
-};
-
-internal inline bit_scan_result
-FindLeastSignificantSetBit(u32 Value)
+}
+;
+internal inline 
+bit_scan_result FindLeastSignificantSetBit(u32 Value)
 {
     bit_scan_result Result = {};
     
@@ -100,4 +123,37 @@ FindLeastSignificantSetBit(u32 Value)
     return Result;
 }
 
+u32 RotateLeft(u32 Value, u32 Count)
+{
+    u32 Result = 0;
+    
+#if 0
+#elif COMPILER_GNU
+    Result = _rotl(Value, Count);
+#endif
+    
+    return Result;
+}
+
+u32 RotateRight(u32 Value, u32 Count)
+{
+    u32 Result = 0;
+    
+#if 0
+#elif COMPILER_GNU
+    Result = _rotr(Value, Count);
+#endif
+    
+    return Result;
+}
+
+
+inline
+r32 SquareRoot(r32 Real32)
+{
+    r32 Result = sqrtf(Real32);
+    return Result;
+}
+
+
 #endif //HANDMADE_INTRINSICS_H