--- portab.h	2002/03/20 14:02:48	1.4
+++ portab.h	2002/03/28 12:24:41	1.8
@@ -32,7 +32,11 @@
 #define EMMS() __asm {emms}
 
 #define CACHE_LINE  16
+#if _MSC_VER <= 1200
+#define CACHE_ALIGN
+#else
 #define CACHE_ALIGN __declspec(align(CACHE_LINE))
+#endif
 
 // needed for bitstream.h
 #define BSWAP(a) __asm mov eax,a __asm bswap eax __asm mov a, eax
@@ -74,14 +78,19 @@
 #endif
 
 #define CACHE_LINE  16
-#define CACHE_ALIGN
 
 #if defined(LINUX)
 
 #include <stdint.h>
 
+#define DECLARE_ALIGNED_MATRIX(name,sizex,sizey,type,alignment) \
+	type name##_storage[(sizex)*(sizey)+(alignment)-1]; \
+	typedef type  name##_sub[sizey]; \
+	name##_sub * name = (void *) (((int32_t) name##_storage+(alignment)) & ~((int32_t)(alignment)-1))
+
 #else
 
+#define CACHE_ALIGN __attribute__ ((__aligned__(CACHE_LINE)))
 #define int8_t char
 #define uint8_t unsigned char
 #define int16_t short
@@ -93,10 +102,16 @@
 
 #endif
 
-#define EMMS() __asm__("emms\n\t")
 
 // needed for bitstream.h
-#define BSWAP(a) __asm__ ( "bswapl %0\n" : "=r" (a) : "0" (a) )
+#ifdef ARCH_PPC
+	#define BSWAP(a) __asm__ ( "lwbrx %0,0,%1; eieio" : "=r" (a) : \
+		"r" (&(a)), "m" (a));
+	#define EMMS()
+#else
+	#define BSWAP(a) __asm__ ( "bswapl %0\n" : "=r" (a) : "0" (a) )
+	#define EMMS() __asm__("emms\n\t")
+#endif
 
 // needed for timer.c
 static __inline int64_t read_counter() {