Add signed/unsigned 8-bit and 16-bit Representations

src/globals.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 208 matching lines @@
 #endif
 
 // -----------------------------------------------------------------------------
 // Constants
 
 const int KB = 1024;
 const int MB = KB * KB;
 const int GB = KB * KB * KB;
 const int kMaxInt = 0x7FFFFFFF;
 const int kMinInt = -kMaxInt - 1;
+const int kMaxInt8 = (1 << 7) - 1;
+const int kMinInt8 = -(1 << 7);
+const int kMaxUInt8 = (1 << 8) - 1;
+const int kMinUInt8 = 0;
+const int kMaxInt16 = (1 << 15) - 1;
+const int kMinInt16 = -(1 << 15);
+const int kMaxUInt16 = (1 << 16) - 1;
+const int kMinUInt16 = 0;
 
 const uint32_t kMaxUInt32 = 0xFFFFFFFFu;
 
 const int kCharSize      = sizeof(char);      // NOLINT
 const int kShortSize     = sizeof(short);     // NOLINT
 const int kIntSize       = sizeof(int);       // NOLINT
 const int kInt32Size     = sizeof(int32_t);   // NOLINT
 const int kInt64Size     = sizeof(int64_t);   // NOLINT
 const int kDoubleSize    = sizeof(double);    // NOLINT
 const int kIntptrSize    = sizeof(intptr_t);  // NOLINT
@@ skipping 165 matching lines @@
 // the backend, so both modes are represented by the kStrictMode value.
 enum StrictModeFlag {
   kNonStrictMode,
   kStrictMode
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_