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7cecb28bdf
This fixes a problem I was having where using frame advance with the debugger open would frequently cause panic alerts about invalid addresses due to the CPU thread changing MSR.DR while the host thread was trying to access memory. To aid in tracking down all the places where we weren't properly locking the CPU, I've created a new type (in Core.h) that you have to pass as a reference or pointer to functions that require running as the CPU thread.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright 2010 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <span>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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class PointerWrap;
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namespace Core
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{
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class CPUThreadGuard;
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};
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namespace Gecko
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{
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class GeckoCode
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{
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public:
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GeckoCode() = default;
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struct Code
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{
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u32 address = 0;
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u32 data = 0;
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std::string original_line;
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};
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std::vector<Code> codes;
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std::string name, creator;
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std::vector<std::string> notes;
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bool enabled = false;
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bool default_enabled = false;
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bool user_defined = false;
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bool Exist(u32 address, u32 data) const;
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};
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bool operator==(const GeckoCode& lhs, const GeckoCode& rhs);
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bool operator!=(const GeckoCode& lhs, const GeckoCode& rhs);
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bool operator==(const GeckoCode::Code& lhs, const GeckoCode::Code& rhs);
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bool operator!=(const GeckoCode::Code& lhs, const GeckoCode::Code& rhs);
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// Installation address for codehandler.bin in the Game's RAM
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constexpr u32 INSTALLER_BASE_ADDRESS = 0x80001800;
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constexpr u32 INSTALLER_END_ADDRESS = 0x80003000;
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constexpr u32 ENTRY_POINT = INSTALLER_BASE_ADDRESS + 0xA8;
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// If the GCT is max-length then this is the second word of the End code (0xF0000000 0x00000000)
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// If the table is shorter than the max-length then this address is unused / contains trash.
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constexpr u32 HLE_TRAMPOLINE_ADDRESS = INSTALLER_END_ADDRESS - 4;
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// This forms part of a communication protocol with HLE_Misc::GeckoCodeHandlerICacheFlush.
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// Basically, codehandleronly.s doesn't use ICBI like it's supposed to when patching the
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// game's code. This results in the JIT happily ignoring all code patches for blocks that
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// are already compiled. The hack for getting around that is that the first 5 frames after
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// the handler is installed (0xD01F1BAD -> +5 -> 0xD01F1BB2) cause full ICache resets.
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//
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// GeckoCodeHandlerICacheFlush will increment this value 5 times then cease flushing the ICache to
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// preserve the emulation performance.
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constexpr u32 MAGIC_GAMEID = 0xD01F1BAD;
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void SetActiveCodes(std::span<const GeckoCode> gcodes);
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void SetSyncedCodesAsActive();
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void UpdateSyncedCodes(std::span<const GeckoCode> gcodes);
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std::vector<GeckoCode> SetAndReturnActiveCodes(std::span<const GeckoCode> gcodes);
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void RunCodeHandler(const Core::CPUThreadGuard& guard);
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void Shutdown();
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void DoState(PointerWrap&);
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} // namespace Gecko
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