93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2018 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#pragma once
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#include <array>
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#include <cstring>
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#include <map>
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#include <dynarmic/A32/a32.h>
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#include "common/assert.h"
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#include "common/common_types.h"
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template <typename InstructionType, u32 infinite_loop>
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class A32TestEnv final : public Dynarmic::A32::UserCallbacks {
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public:
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u64 ticks_left = 0;
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bool code_mem_modified_by_guest = false;
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std::array<InstructionType, 2048> code_mem{};
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std::map<u32, u8> modified_memory;
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std::uint32_t MemoryReadCode(u32 vaddr) override {
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const size_t index = vaddr / sizeof(InstructionType);
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if (index < code_mem.size()) {
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u32 value;
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std::memcpy(&value, &code_mem[index], sizeof(u32));
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return value;
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}
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return infinite_loop; // B .
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}
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std::uint8_t MemoryRead8(u32 vaddr) override {
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if (vaddr < sizeof(InstructionType) * code_mem.size()) {
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return reinterpret_cast<u8*>(code_mem.data())[vaddr];
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}
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if (auto iter = modified_memory.find(vaddr); iter != modified_memory.end()) {
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return iter->second;
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}
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return static_cast<u8>(vaddr);
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}
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std::uint16_t MemoryRead16(u32 vaddr) override {
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return u16(MemoryRead8(vaddr)) | u16(MemoryRead8(vaddr + 1)) << 8;
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}
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std::uint32_t MemoryRead32(u32 vaddr) override {
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return u32(MemoryRead16(vaddr)) | u32(MemoryRead16(vaddr + 2)) << 16;
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}
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std::uint64_t MemoryRead64(u32 vaddr) override {
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return u64(MemoryRead32(vaddr)) | u64(MemoryRead32(vaddr + 4)) << 32;
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}
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void MemoryWrite8(u32 vaddr, std::uint8_t value) override {
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if (vaddr < code_mem.size() * sizeof(u32)) {
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code_mem_modified_by_guest = true;
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}
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modified_memory[vaddr] = value;
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}
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void MemoryWrite16(u32 vaddr, std::uint16_t value) override {
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MemoryWrite8(vaddr, static_cast<u8>(value));
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MemoryWrite8(vaddr + 1, static_cast<u8>(value >> 8));
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}
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void MemoryWrite32(u32 vaddr, std::uint32_t value) override {
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MemoryWrite16(vaddr, static_cast<u16>(value));
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MemoryWrite16(vaddr + 2, static_cast<u16>(value >> 16));
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}
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void MemoryWrite64(u32 vaddr, std::uint64_t value) override {
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MemoryWrite32(vaddr, static_cast<u32>(value));
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MemoryWrite32(vaddr + 4, static_cast<u32>(value >> 32));
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}
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void InterpreterFallback(u32 pc, size_t num_instructions) override { ASSERT_MSG(false, "InterpreterFallback({:08x}, {})", pc, num_instructions); }
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void CallSVC(std::uint32_t swi) override { ASSERT_MSG(false, "CallSVC({})", swi); }
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void ExceptionRaised(u32 pc, Dynarmic::A32::Exception /*exception*/) override { ASSERT_MSG(false, "ExceptionRaised({:08x})", pc); }
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void AddTicks(std::uint64_t ticks) override {
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if (ticks > ticks_left) {
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ticks_left = 0;
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return;
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}
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ticks_left -= ticks;
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}
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std::uint64_t GetTicksRemaining() override {
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return ticks_left;
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}
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};
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using ArmTestEnv = A32TestEnv<u32, 0xEAFFFFFE>;
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using ThumbTestEnv = A32TestEnv<u16, 0xE7FEE7FE>;
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