dolphin/Source/Core/DSPCore/Src/DSPAnalyzer.h

51 lines
1.6 KiB
C++

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