summaryrefslogtreecommitdiffstats
path: root/tools/memory_watcher/ia32_modrm_map.cc
diff options
context:
space:
mode:
authorinitial.commit <initial.commit@0039d316-1c4b-4281-b951-d872f2087c98>2008-07-27 00:12:16 +0000
committerinitial.commit <initial.commit@0039d316-1c4b-4281-b951-d872f2087c98>2008-07-27 00:12:16 +0000
commit920c091ac3ee15079194c82ae8a7a18215f3f23c (patch)
treed28515d1e7732e2b6d077df1b4855ace3f4ac84f /tools/memory_watcher/ia32_modrm_map.cc
parentae2c20f398933a9e86c387dcc465ec0f71065ffc (diff)
downloadchromium_src-920c091ac3ee15079194c82ae8a7a18215f3f23c.zip
chromium_src-920c091ac3ee15079194c82ae8a7a18215f3f23c.tar.gz
chromium_src-920c091ac3ee15079194c82ae8a7a18215f3f23c.tar.bz2
Add tools to the repository.
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'tools/memory_watcher/ia32_modrm_map.cc')
-rw-r--r--tools/memory_watcher/ia32_modrm_map.cc120
1 files changed, 120 insertions, 0 deletions
diff --git a/tools/memory_watcher/ia32_modrm_map.cc b/tools/memory_watcher/ia32_modrm_map.cc
new file mode 100644
index 0000000..eaae07c
--- /dev/null
+++ b/tools/memory_watcher/ia32_modrm_map.cc
@@ -0,0 +1,120 @@
+/* Copyright (c) 2007, Google Inc.
+ * 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,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---
+ *
+ * Table of relevant information about how to decode the ModR/M byte.
+ * Based on information in the IA 32 Intel Architecture
+ * Software Developer's Manual Volume 2: Instruction Set Reference.
+ */
+
+#include "mini_disassembler.h"
+#include "mini_disassembler_types.h"
+
+namespace sidestep {
+
+const ModrmEntry MiniDisassembler::s_ia16_modrm_map_[] = {
+// mod == 00
+ /* r/m == 000 */ { false, false, OS_ZERO },
+ /* r/m == 001 */ { false, false, OS_ZERO },
+ /* r/m == 010 */ { false, false, OS_ZERO },
+ /* r/m == 011 */ { false, false, OS_ZERO },
+ /* r/m == 100 */ { false, false, OS_ZERO },
+ /* r/m == 101 */ { false, false, OS_ZERO },
+ /* r/m == 110 */ { true, false, OS_WORD },
+ /* r/m == 111 */ { false, false, OS_ZERO },
+// mod == 01
+ /* r/m == 000 */ { true, false, OS_BYTE },
+ /* r/m == 001 */ { true, false, OS_BYTE },
+ /* r/m == 010 */ { true, false, OS_BYTE },
+ /* r/m == 011 */ { true, false, OS_BYTE },
+ /* r/m == 100 */ { true, false, OS_BYTE },
+ /* r/m == 101 */ { true, false, OS_BYTE },
+ /* r/m == 110 */ { true, false, OS_BYTE },
+ /* r/m == 111 */ { true, false, OS_BYTE },
+// mod == 10
+ /* r/m == 000 */ { true, false, OS_WORD },
+ /* r/m == 001 */ { true, false, OS_WORD },
+ /* r/m == 010 */ { true, false, OS_WORD },
+ /* r/m == 011 */ { true, false, OS_WORD },
+ /* r/m == 100 */ { true, false, OS_WORD },
+ /* r/m == 101 */ { true, false, OS_WORD },
+ /* r/m == 110 */ { true, false, OS_WORD },
+ /* r/m == 111 */ { true, false, OS_WORD },
+// mod == 11
+ /* r/m == 000 */ { false, false, OS_ZERO },
+ /* r/m == 001 */ { false, false, OS_ZERO },
+ /* r/m == 010 */ { false, false, OS_ZERO },
+ /* r/m == 011 */ { false, false, OS_ZERO },
+ /* r/m == 100 */ { false, false, OS_ZERO },
+ /* r/m == 101 */ { false, false, OS_ZERO },
+ /* r/m == 110 */ { false, false, OS_ZERO },
+ /* r/m == 111 */ { false, false, OS_ZERO }
+};
+
+const ModrmEntry MiniDisassembler::s_ia32_modrm_map_[] = {
+// mod == 00
+ /* r/m == 000 */ { false, false, OS_ZERO },
+ /* r/m == 001 */ { false, false, OS_ZERO },
+ /* r/m == 010 */ { false, false, OS_ZERO },
+ /* r/m == 011 */ { false, false, OS_ZERO },
+ /* r/m == 100 */ { false, true, OS_ZERO },
+ /* r/m == 101 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 110 */ { false, false, OS_ZERO },
+ /* r/m == 111 */ { false, false, OS_ZERO },
+// mod == 01
+ /* r/m == 000 */ { true, false, OS_BYTE },
+ /* r/m == 001 */ { true, false, OS_BYTE },
+ /* r/m == 010 */ { true, false, OS_BYTE },
+ /* r/m == 011 */ { true, false, OS_BYTE },
+ /* r/m == 100 */ { true, true, OS_BYTE },
+ /* r/m == 101 */ { true, false, OS_BYTE },
+ /* r/m == 110 */ { true, false, OS_BYTE },
+ /* r/m == 111 */ { true, false, OS_BYTE },
+// mod == 10
+ /* r/m == 000 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 001 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 010 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 011 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 100 */ { true, true, OS_DOUBLE_WORD },
+ /* r/m == 101 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 110 */ { true, false, OS_DOUBLE_WORD },
+ /* r/m == 111 */ { true, false, OS_DOUBLE_WORD },
+// mod == 11
+ /* r/m == 000 */ { false, false, OS_ZERO },
+ /* r/m == 001 */ { false, false, OS_ZERO },
+ /* r/m == 010 */ { false, false, OS_ZERO },
+ /* r/m == 011 */ { false, false, OS_ZERO },
+ /* r/m == 100 */ { false, false, OS_ZERO },
+ /* r/m == 101 */ { false, false, OS_ZERO },
+ /* r/m == 110 */ { false, false, OS_ZERO },
+ /* r/m == 111 */ { false, false, OS_ZERO },
+};
+
+}; // namespace sidestep