51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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// Basic code analysis.
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#include "DSPInterpreter.h"
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namespace DSPAnalyzer {
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#define ISPACE 65536
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// Useful things to detect:
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// * Loop endpoints - so that we can avoid checking for loops every cycle.
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enum
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{
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CODE_START_OF_INST = 1,
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CODE_IDLE_SKIP = 2,
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CODE_LOOP_START = 4,
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CODE_LOOP_END = 8,
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};
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// Easy to query array covering the whole of instruction memory.
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// Just index by address.
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// This one will be helpful for debuggers and jits.
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extern u8 code_flags[ISPACE];
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// This one should be called every time IRAM changes - which is basically
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// every time that a new ucode gets uploaded, and never else. At that point,
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// we can do as much static analysis as we want - but we should always throw
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// all old analysis away. Luckily the entire address space is only 64K code
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// words and the actual code space 8K instructions in total, so we can do
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// some pretty expensive analysis if necessary.
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void Analyze();
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} // namespace
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