Capturing guest/host context and showing registers in debugger.

src/xenia/base/vec128.h

@@ -11,6 +11,7 @@
 #define XENIA_BASE_VEC128_H_
 
 #include <cstddef>
+#include <string>
 
 #include "xenia/base/math.h"
 #include "xenia/base/platform.h"
@@ -194,6 +195,13 @@ static inline vec128_t vec128b(uint8_t x0, uint8_t x1, uint8_t x2, uint8_t x3,
   return v;
 }
 
+inline std::string to_string(const vec128_t& value) {
+  char buffer[128];
+  std::snprintf(buffer, sizeof(buffer), "(%g, %g, %g, %g)", value.x, value.y,
+                value.z, value.w);
+  return std::string(buffer);
+}
+
 }  // namespace xe
 
 #endif  // XENIA_BASE_VEC128_H_