Tests: Handle integer floating point numbers

src/xenia/base/vec128.h

@@ -171,6 +171,19 @@ static inline vec128_t vec128i(uint32_t x, uint32_t y, uint32_t z, uint32_t w) {
   v.u32[3] = w;
   return v;
 }
+static inline vec128_t vec128q(uint64_t src) {
+  vec128_t v;
+  for (auto i = 0; i < 2; ++i) {
+    v.i64[i] = src;
+  }
+  return v;
+}
+static inline vec128_t vec128q(uint64_t x, uint64_t y) {
+  vec128_t v;
+  v.i64[0] = x;
+  v.i64[1] = y;
+  return v;
+}
 static inline vec128_t vec128d(double src) {
   vec128_t v;
   for (auto i = 0; i < 2; ++i) {

src/xenia/cpu/ppc/ppc_context.cc

@@ -147,11 +147,28 @@ bool PPCContext::CompareRegWithString(const char* name, const char* value,
     }
     return true;
   } else if (sscanf(name, "f%d", &n) == 1) {
-    double expected = string_util::from_string<double>(value);
-    // TODO(benvanik): epsilon
-    if (this->f[n] != expected) {
-      std::snprintf(out_value, out_value_size, "%f", this->f[n]);
-      return false;
+    if (std::strstr(value, "0x")) {
+      // Special case: Treat float as integer.
+      uint64_t expected = string_util::from_string<uint64_t>(value, true);
+
+      union {
+        double f;
+        uint64_t u;
+      } f2u;
+      f2u.f = this->f[n];
+
+      if (f2u.u != expected) {
+        std::snprintf(out_value, out_value_size, "%016" PRIX64, f2u.u);
+        return false;
+      }
+    } else {
+      double expected = string_util::from_string<double>(value);
+
+      // TODO(benvanik): epsilon
+      if (this->f[n] != expected) {
+        std::snprintf(out_value, out_value_size, "%f", this->f[n]);
+        return false;
+      }
     }
     return true;
   } else if (sscanf(name, "v%d", &n) == 1) {