Add XE_ARCH_*

src/xenia/base/math.h

@@ -10,8 +10,6 @@
 #ifndef XENIA_BASE_MATH_H_
 #define XENIA_BASE_MATH_H_
 
-#include <xmmintrin.h>
-
 #include <algorithm>
 #include <cstdint>
 #include <cstring>
@@ -19,6 +17,10 @@
 
 #include "xenia/base/platform.h"
 
+#if XE_ARCH_AMD64
+#include <xmmintrin.h>
+#endif
+
 namespace xe {
 
 template <typename T, size_t N>
@@ -255,6 +257,7 @@ T clamp(T value, T min_value, T max_value) {
   return t > max_value ? max_value : t;
 }
 
+#if XE_ARCH_AMD64
 // Utilities for SSE values.
 template <int N>
 float m128_f32(const __m128& v) {
@@ -294,6 +297,7 @@ template <int N>
 int64_t m128_i64(const __m128& v) {
   return m128_i64<N>(_mm_castps_pd(v));
 }
+#endif
 
 uint16_t float_to_half(float value);
 float half_to_float(uint16_t value);

src/xenia/base/platform.h

@@ -47,6 +47,14 @@
 #define XE_COMPILER_UNKNOWN 1
 #endif
 
+#if defined(_M_AMD64) || defined(__amd64__)
+#define XE_ARCH_AMD64 1
+#elif defined(_M_IX86)
+#error "Xenia is not supported on 32-bit platforms."
+#elif defined(_M_PPC) || defined(__powerpc__)
+#define XE_ARCH_PPC 1
+#endif
+
 #if XE_PLATFORM_WIN32
 #define strdup _strdup
 #define strcasecmp _stricmp
@@ -57,7 +65,7 @@
 
 #if XE_PLATFORM_WIN32
 #include <intrin.h>
-#else
+#elif XE_ARCH_AMD64
 #include <x86intrin.h>
 #endif  // XE_PLATFORM_WIN32