1 files changed, 224 insertions, 0 deletions
diff --git a/externals/dynarmic/tests/A64/testenv.h b/externals/dynarmic/tests/A64/testenv.h
new file mode 100644
index 0000000000..73525242c3
--- /dev/null
+++ b/externals/dynarmic/tests/A64/testenv.h
@@ -0,0 +1,224 @@
+/* This file is part of the dynarmic project.
+ * Copyright (c) 2018 MerryMage
+ * SPDX-License-Identifier: 0BSD
+ */
+
+#pragma once
+
+#include <array>
+#include <map>
+
+#include <mcl/assert.hpp>
+#include <mcl/stdint.hpp>
+
+#include "dynarmic/interface/A64/a64.h"
+
+using Vector = Dynarmic::A64::Vector;
+
+class A64TestEnv : public Dynarmic::A64::UserCallbacks {
+public:
+    u64 ticks_left = 0;
+
+    bool code_mem_modified_by_guest = false;
+    u64 code_mem_start_address = 0;
+    std::vector<u32> code_mem;
+
+    std::map<u64, u8> modified_memory;
+    std::vector<std::string> interrupts;
+
+    bool IsInCodeMem(u64 vaddr) const {
+        return vaddr >= code_mem_start_address && vaddr < code_mem_start_address + code_mem.size() * 4;
+    }
+
+    std::optional<std::uint32_t> MemoryReadCode(u64 vaddr) override {
+        if (!IsInCodeMem(vaddr)) {
+            return 0x14000000;  // B .
+        }
+
+        const size_t index = (vaddr - code_mem_start_address) / 4;
+        return code_mem[index];
+    }
+
+    std::uint8_t MemoryRead8(u64 vaddr) override {
+        if (IsInCodeMem(vaddr)) {
+            return reinterpret_cast<u8*>(code_mem.data())[vaddr - code_mem_start_address];
+        }
+        if (auto iter = modified_memory.find(vaddr); iter != modified_memory.end()) {
+            return iter->second;
+        }
+        return static_cast<u8>(vaddr);
+    }
+    std::uint16_t MemoryRead16(u64 vaddr) override {
+        return u16(MemoryRead8(vaddr)) | u16(MemoryRead8(vaddr + 1)) << 8;
+    }
+    std::uint32_t MemoryRead32(u64 vaddr) override {
+        return u32(MemoryRead16(vaddr)) | u32(MemoryRead16(vaddr + 2)) << 16;
+    }
+    std::uint64_t MemoryRead64(u64 vaddr) override {
+        return u64(MemoryRead32(vaddr)) | u64(MemoryRead32(vaddr + 4)) << 32;
+    }
+    Vector MemoryRead128(u64 vaddr) override {
+        return {MemoryRead64(vaddr), MemoryRead64(vaddr + 8)};
+    }
+
+    void MemoryWrite8(u64 vaddr, std::uint8_t value) override {
+        if (IsInCodeMem(vaddr)) {
+            code_mem_modified_by_guest = true;
+        }
+        modified_memory[vaddr] = value;
+    }
+    void MemoryWrite16(u64 vaddr, std::uint16_t value) override {
+        MemoryWrite8(vaddr, static_cast<u8>(value));
+        MemoryWrite8(vaddr + 1, static_cast<u8>(value >> 8));
+    }
+    void MemoryWrite32(u64 vaddr, std::uint32_t value) override {
+        MemoryWrite16(vaddr, static_cast<u16>(value));
+        MemoryWrite16(vaddr + 2, static_cast<u16>(value >> 16));
+    }
+    void MemoryWrite64(u64 vaddr, std::uint64_t value) override {
+        MemoryWrite32(vaddr, static_cast<u32>(value));
+        MemoryWrite32(vaddr + 4, static_cast<u32>(value >> 32));
+    }
+    void MemoryWrite128(u64 vaddr, Vector value) override {
+        MemoryWrite64(vaddr, value[0]);
+        MemoryWrite64(vaddr + 8, value[1]);
+    }
+
+    bool MemoryWriteExclusive8(u64 vaddr, std::uint8_t value, [[maybe_unused]] std::uint8_t expected) override {
+        MemoryWrite8(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive16(u64 vaddr, std::uint16_t value, [[maybe_unused]] std::uint16_t expected) override {
+        MemoryWrite16(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive32(u64 vaddr, std::uint32_t value, [[maybe_unused]] std::uint32_t expected) override {
+        MemoryWrite32(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive64(u64 vaddr, std::uint64_t value, [[maybe_unused]] std::uint64_t expected) override {
+        MemoryWrite64(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive128(u64 vaddr, Vector value, [[maybe_unused]] Vector expected) override {
+        MemoryWrite128(vaddr, value);
+        return true;
+    }
+
+    void InterpreterFallback(u64 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(u64 pc, Dynarmic::A64::Exception /*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;
+    }
+    std::uint64_t GetCNTPCT() override {
+        return 0x10000000000 - ticks_left;
+    }
+};
+
+class A64FastmemTestEnv final : public Dynarmic::A64::UserCallbacks {
+public:
+    u64 ticks_left = 0;
+    char* backing_memory = nullptr;
+
+    explicit A64FastmemTestEnv(char* addr)
+            : backing_memory(addr) {}
+
+    template<typename T>
+    T read(u64 vaddr) {
+        T value;
+        memcpy(&value, backing_memory + vaddr, sizeof(T));
+        return value;
+    }
+    template<typename T>
+    void write(u64 vaddr, const T& value) {
+        memcpy(backing_memory + vaddr, &value, sizeof(T));
+    }
+
+    std::optional<std::uint32_t> MemoryReadCode(u64 vaddr) override {
+        return read<std::uint32_t>(vaddr);
+    }
+
+    std::uint8_t MemoryRead8(u64 vaddr) override {
+        return read<std::uint8_t>(vaddr);
+    }
+    std::uint16_t MemoryRead16(u64 vaddr) override {
+        return read<std::uint16_t>(vaddr);
+    }
+    std::uint32_t MemoryRead32(u64 vaddr) override {
+        return read<std::uint32_t>(vaddr);
+    }
+    std::uint64_t MemoryRead64(u64 vaddr) override {
+        return read<std::uint64_t>(vaddr);
+    }
+    Vector MemoryRead128(u64 vaddr) override {
+        return read<Vector>(vaddr);
+    }
+
+    void MemoryWrite8(u64 vaddr, std::uint8_t value) override {
+        write(vaddr, value);
+    }
+    void MemoryWrite16(u64 vaddr, std::uint16_t value) override {
+        write(vaddr, value);
+    }
+    void MemoryWrite32(u64 vaddr, std::uint32_t value) override {
+        write(vaddr, value);
+    }
+    void MemoryWrite64(u64 vaddr, std::uint64_t value) override {
+        write(vaddr, value);
+    }
+    void MemoryWrite128(u64 vaddr, Vector value) override {
+        write(vaddr, value);
+    }
+
+    bool MemoryWriteExclusive8(u64 vaddr, std::uint8_t value, [[maybe_unused]] std::uint8_t expected) override {
+        MemoryWrite8(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive16(u64 vaddr, std::uint16_t value, [[maybe_unused]] std::uint16_t expected) override {
+        MemoryWrite16(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive32(u64 vaddr, std::uint32_t value, [[maybe_unused]] std::uint32_t expected) override {
+        MemoryWrite32(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive64(u64 vaddr, std::uint64_t value, [[maybe_unused]] std::uint64_t expected) override {
+        MemoryWrite64(vaddr, value);
+        return true;
+    }
+    bool MemoryWriteExclusive128(u64 vaddr, Vector value, [[maybe_unused]] Vector expected) override {
+        MemoryWrite128(vaddr, value);
+        return true;
+    }
+
+    void InterpreterFallback(u64 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(u64 pc, Dynarmic::A64::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;
+    }
+    std::uint64_t GetCNTPCT() override {
+        return 0x10000000000 - ticks_left;
+    }
+};