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/* This file is part of the dynarmic project.
* Copyright (c) 2018 MerryMage
* SPDX-License-Identifier: 0BSD
*/
#pragma once
#include <array>
#include <cstring>
#include <map>
#include <string>
#include <vector>
#include <mcl/assert.hpp>
#include <mcl/stdint.hpp>
#include "dynarmic/interface/A32/a32.h"
template<typename InstructionType_, u32 infinite_loop_u32>
class A32TestEnv : public Dynarmic::A32::UserCallbacks {
public:
using InstructionType = InstructionType_;
using RegisterArray = std::array<u32, 16>;
using ExtRegsArray = std::array<u32, 64>;
#ifdef _MSC_VER
# pragma warning(push)
# pragma warning(disable : 4309) // C4309: 'static_cast': truncation of constant value
#endif
static constexpr InstructionType infinite_loop = static_cast<InstructionType>(infinite_loop_u32);
#ifdef _MSC_VER
# pragma warning(pop)
#endif
u64 ticks_left = 0;
bool code_mem_modified_by_guest = false;
std::vector<InstructionType> code_mem;
std::map<u32, u8> modified_memory;
std::vector<std::string> interrupts;
void PadCodeMem() {
do {
code_mem.push_back(infinite_loop);
} while (code_mem.size() % 2 != 0);
}
bool IsInCodeMem(u32 vaddr) const {
return vaddr < sizeof(InstructionType) * code_mem.size();
}
std::optional<std::uint32_t> MemoryReadCode(u32 vaddr) override {
if (IsInCodeMem(vaddr)) {
u32 value;
std::memcpy(&value, &code_mem[vaddr / sizeof(InstructionType)], sizeof(u32));
return value;
}
return infinite_loop_u32; // B .
}
std::uint8_t MemoryRead8(u32 vaddr) override {
if (IsInCodeMem(vaddr)) {
return reinterpret_cast<u8*>(code_mem.data())[vaddr];
}
if (auto iter = modified_memory.find(vaddr); iter != modified_memory.end()) {
return iter->second;
}
return static_cast<u8>(vaddr);
}
std::uint16_t MemoryRead16(u32 vaddr) override {
return u16(MemoryRead8(vaddr)) | u16(MemoryRead8(vaddr + 1)) << 8;
}
std::uint32_t MemoryRead32(u32 vaddr) override {
return u32(MemoryRead16(vaddr)) | u32(MemoryRead16(vaddr + 2)) << 16;
}
std::uint64_t MemoryRead64(u32 vaddr) override {
return u64(MemoryRead32(vaddr)) | u64(MemoryRead32(vaddr + 4)) << 32;
}
void MemoryWrite8(u32 vaddr, std::uint8_t value) override {
if (vaddr < code_mem.size() * sizeof(u32)) {
code_mem_modified_by_guest = true;
}
modified_memory[vaddr] = value;
}
void MemoryWrite16(u32 vaddr, std::uint16_t value) override {
MemoryWrite8(vaddr, static_cast<u8>(value));
MemoryWrite8(vaddr + 1, static_cast<u8>(value >> 8));
}
void MemoryWrite32(u32 vaddr, std::uint32_t value) override {
MemoryWrite16(vaddr, static_cast<u16>(value));
MemoryWrite16(vaddr + 2, static_cast<u16>(value >> 16));
}
void MemoryWrite64(u32 vaddr, std::uint64_t value) override {
MemoryWrite32(vaddr, static_cast<u32>(value));
MemoryWrite32(vaddr + 4, static_cast<u32>(value >> 32));
}
void InterpreterFallback(u32 pc, size_t num_instructions) override { ASSERT_MSG(false, "InterpreterFallback({:08x}, {}) code = {:08x}", pc, num_instructions, *MemoryReadCode(pc)); }
void CallSVC(std::uint32_t swi) override { ASSERT_MSG(false, "CallSVC({})", swi); }
void ExceptionRaised(u32 pc, Dynarmic::A32::Exception /*exception*/) override { ASSERT_MSG(false, "ExceptionRaised({:08x}) code = {:08x}", pc, *MemoryReadCode(pc)); }
void AddTicks(std::uint64_t ticks) override {
if (ticks > ticks_left) {
ticks_left = 0;
return;
}
ticks_left -= ticks;
}
std::uint64_t GetTicksRemaining() override {
return ticks_left;
}
};
using ArmTestEnv = A32TestEnv<u32, 0xEAFFFFFE>;
using ThumbTestEnv = A32TestEnv<u16, 0xE7FEE7FE>;
class A32FastmemTestEnv final : public Dynarmic::A32::UserCallbacks {
public:
u64 ticks_left = 0;
char* backing_memory = nullptr;
explicit A32FastmemTestEnv(char* addr)
: backing_memory(addr) {}
template<typename T>
T read(std::uint32_t vaddr) {
T value;
memcpy(&value, backing_memory + vaddr, sizeof(T));
return value;
}
template<typename T>
void write(std::uint32_t vaddr, const T& value) {
memcpy(backing_memory + vaddr, &value, sizeof(T));
}
std::optional<std::uint32_t> MemoryReadCode(std::uint32_t vaddr) override {
return read<std::uint32_t>(vaddr);
}
std::uint8_t MemoryRead8(std::uint32_t vaddr) override {
return read<std::uint8_t>(vaddr);
}
std::uint16_t MemoryRead16(std::uint32_t vaddr) override {
return read<std::uint16_t>(vaddr);
}
std::uint32_t MemoryRead32(std::uint32_t vaddr) override {
return read<std::uint32_t>(vaddr);
}
std::uint64_t MemoryRead64(std::uint32_t vaddr) override {
return read<std::uint64_t>(vaddr);
}
void MemoryWrite8(std::uint32_t vaddr, std::uint8_t value) override {
write(vaddr, value);
}
void MemoryWrite16(std::uint32_t vaddr, std::uint16_t value) override {
write(vaddr, value);
}
void MemoryWrite32(std::uint32_t vaddr, std::uint32_t value) override {
write(vaddr, value);
}
void MemoryWrite64(std::uint32_t vaddr, std::uint64_t value) override {
write(vaddr, value);
}
bool MemoryWriteExclusive8(std::uint32_t vaddr, std::uint8_t value, [[maybe_unused]] std::uint8_t expected) override {
MemoryWrite8(vaddr, value);
return true;
}
bool MemoryWriteExclusive16(std::uint32_t vaddr, std::uint16_t value, [[maybe_unused]] std::uint16_t expected) override {
MemoryWrite16(vaddr, value);
return true;
}
bool MemoryWriteExclusive32(std::uint32_t vaddr, std::uint32_t value, [[maybe_unused]] std::uint32_t expected) override {
MemoryWrite32(vaddr, value);
return true;
}
bool MemoryWriteExclusive64(std::uint32_t vaddr, std::uint64_t value, [[maybe_unused]] std::uint64_t expected) override {
MemoryWrite64(vaddr, value);
return true;
}
void InterpreterFallback(std::uint32_t pc, size_t num_instructions) override { ASSERT_MSG(false, "InterpreterFallback({:016x}, {})", pc, num_instructions); }
void CallSVC(std::uint32_t swi) override { ASSERT_MSG(false, "CallSVC({})", swi); }
void ExceptionRaised(std::uint32_t pc, Dynarmic::A32::Exception) override { ASSERT_MSG(false, "ExceptionRaised({:016x})", pc); }
void AddTicks(std::uint64_t ticks) override {
if (ticks > ticks_left) {
ticks_left = 0;
return;
}
ticks_left -= ticks;
}
std::uint64_t GetTicksRemaining() override {
return ticks_left;
}
};
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