First draft of the sh4 port

src/sh4/map-sh4.h

-// Copyright 2008 the V8 project authors. All rights reserved.
+// Copyright 2011-2012 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
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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-function f() { return this; }
-
-assertFalse(this == null);  // the global object shouldn't be null or undefined
-assertEquals('[object global]', String(this));
-
-assertTrue(this === this);
-assertTrue(this === (function() { return this; })());
-assertTrue(this === f());
-
-var x = {}, y = {};
-x.f = y.f = f;
-assertFalse(x === f());
-assertFalse(y === f());
-assertTrue(x === x.f());
-assertTrue(x === x[new String('f')]());
-assertTrue(y === y.f(), "y.f()");
-assertTrue(y === y[new String('f')]());
-assertFalse(x === y.f());
-assertFalse(y === x.f());
+// Mapping of ARM registers to SH4 registers.
+// Include this file the first time for defining the mapping.
+// Include this file a second time for undefining it.
+#ifndef MAP_SH4
+// First include, we define the mapping
+#define MAP_SH4
+#define r8 "should be cp"
+#define ip sh4_r10
+#define lr pr
+#define pc "to be checked"
+#define r10 "should be roots"
+#define r11 "Unexpected"
+#define r12 "Unexpected"
+#define r13 "Unexpected"
+#define r14 "Unexpected"
+#define r15 "Unexpected"
+#else
+// Second include, we define the mapping
+#undef MAP_SH4
+#undef r8
+#undef ip
+#undef lr
+#undef pc
+#undef r10
+#undef r11
+#undef r12
+#undef r13
+#undef r14
+#undef r15
+#endif