stub rv64 a64 impl

src/dynarmic/src/dynarmic/CMakeLists.txt

@@ -287,6 +287,7 @@ if ("riscv64" IN_LIST ARCHITECTURE)
         backend/riscv64/a32_address_space.h
         backend/riscv64/a32_core.h
         backend/riscv64/a32_interface.cpp
+        backend/riscv64/a64_interface.cpp
         backend/riscv64/code_block.h
     )
     message(WARNING "TODO: Incomplete frontend for this host architecture")

src/dynarmic/src/dynarmic/backend/riscv64/a64_interface.cpp

@@ -0,0 +1,295 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <memory>
+#include <mutex>
+
+#include <boost/icl/interval_set.hpp>
+#include "common/assert.h"
+#include "common/common_types.h"
+
+#include "dynarmic/frontend/A64/a64_location_descriptor.h"
+#include "dynarmic/frontend/A64/translate/a64_translate.h"
+#include "dynarmic/interface/A64/config.h"
+#include "dynarmic/backend/ppc64/a64_core.h"
+#include "dynarmic/common/atomic.h"
+#include "dynarmic/ir/opt_passes.h"
+#include "dynarmic/interface/A64/a64.h"
+
+namespace Dynarmic::A64 {
+
+using namespace Dynarmic::Backend::RV64;
+using CodePtr = std::uint32_t*;
+
+struct Jit::Impl final {
+    Impl(Jit* jit_interface, A64::UserConfig conf)
+        : conf(conf)
+        //, current_address_space(conf)
+        , jit_interface(jit_interface) {}
+
+    HaltReason Run() {
+        ASSERT(false);
+        return HaltReason{};
+    }
+
+    HaltReason Step() {
+        ASSERT(false);
+        return HaltReason{};
+    }
+
+    void ClearCache() {
+        std::unique_lock lock{invalidation_mutex};
+        invalidate_entire_cache = true;
+        HaltExecution(HaltReason::CacheInvalidation);
+    }
+
+    void InvalidateCacheRange(u64 start_address, size_t length) {
+        std::unique_lock lock{invalidation_mutex};
+        const auto end_address = u64(start_address + length - 1);
+        invalid_cache_ranges.add(boost::icl::discrete_interval<u64>::closed(start_address, end_address));
+        HaltExecution(HaltReason::CacheInvalidation);
+    }
+
+    void Reset() {
+        ASSERT(!is_executing);
+        //jit_state = {};
+    }
+
+    void HaltExecution(HaltReason hr) {
+        //Atomic::Or(&jit_state.halt_reason, u32(hr));
+    }
+
+    void ClearHalt(HaltReason hr) {
+        //Atomic::And(&jit_state.halt_reason, ~u32(hr));
+    }
+
+    u64 GetSP() const {
+        return 0;//jit_state.sp;
+    }
+
+    void SetSP(u64 value) {
+        //jit_state.sp = value;
+    }
+
+    u64 GetPC() const {
+        return 0;//jit_state.pc;
+    }
+
+    void SetPC(u64 value) {
+        //jit_state.pc = value;
+    }
+
+    u64 GetRegister(size_t index) const {
+        return 0;//index == 31 ? GetSP() : jit_state.regs.at(index);
+    }
+
+    void SetRegister(size_t index, u64 value) {
+        if (index == 31)
+            return SetSP(value);
+        //jit_state.regs.at(index) = value;
+    }
+
+    std::array<u64, 31> GetRegisters() const {
+        return {};//jit_state.regs;
+    }
+
+    void SetRegisters(const std::array<u64, 31>& value) {
+        //jit_state.regs = value;
+    }
+
+    Vector GetVector(size_t index) const {
+        //return {jit_state.vec.at(index * 2), jit_state.vec.at(index * 2 + 1)};
+        return Vector{};
+    }
+
+    void SetVector(size_t index, Vector value) {
+        //jit_state.vec.at(index * 2) = value[0];
+        //jit_state.vec.at(index * 2 + 1) = value[1];
+    }
+
+    std::array<Vector, 32> GetVectors() const {
+        std::array<Vector, 32> ret;
+        //static_assert(sizeof(ret) == sizeof(jit_state.vec));
+        //std::memcpy(ret.data(), jit_state.vec.data(), sizeof(jit_state.vec));
+        return ret;
+    }
+
+    void SetVectors(const std::array<Vector, 32>& value) {
+        //static_assert(sizeof(value) == sizeof(jit_state.vec));
+        //std::memcpy(jit_state.vec.data(), value.data(), sizeof(jit_state.vec));
+    }
+
+    u32 GetFpcr() const {
+        return 0;//jit_state.fpcr;
+    }
+
+    void SetFpcr(u32 value) {
+        //jit_state.fpcr = value;
+    }
+
+    u32 GetFpsr() const {
+        return 0;//jit_state.fpsr;
+    }
+
+    void SetFpsr(u32 value) {
+        //jit_state.fpsr = value;
+    }
+
+    u32 GetPstate() const {
+        return 0;//jit_state.pstate;
+    }
+
+    void SetPstate(u32 value) {
+        //jit_state.pstate = value;
+    }
+
+    void ClearExclusiveState() {
+        //jit_state.exclusive_state = 0;
+    }
+
+    bool IsExecuting() const {
+        return is_executing;
+    }
+
+    std::string Disassemble() const {
+        // const size_t size = reinterpret_cast<const char*>(block_of_code.getCurr()) - reinterpret_cast<const char*>(block_of_code.GetCodeBegin());
+        // auto const* p = reinterpret_cast<const char*>(block_of_code.GetCodeBegin());
+        // return Common::DisassemblePPC64(p, p + size);
+        return {};
+    }
+
+private:
+    void RequestCacheInvalidation() {
+        // UNREACHABLE();
+        invalidate_entire_cache = false;
+        invalid_cache_ranges.clear();
+    }
+
+    A64::UserConfig conf;
+    //A64JitState jit_state{};
+    //A64AddressSpace current_address_space;
+    Jit* jit_interface;
+    volatile u32 halt_reason = 0;
+    bool is_executing = false;
+
+    boost::icl::interval_set<u64> invalid_cache_ranges;
+    bool invalidate_entire_cache = false;
+    std::mutex invalidation_mutex;
+};
+
+Jit::Jit(UserConfig conf) : impl(std::make_unique<Jit::Impl>(this, conf)) {}
+Jit::~Jit() = default;
+
+HaltReason Jit::Run() {
+    return impl->Run();
+}
+
+HaltReason Jit::Step() {
+    return impl->Step();
+}
+
+void Jit::ClearCache() {
+    impl->ClearCache();
+}
+
+void Jit::InvalidateCacheRange(u64 start_address, size_t length) {
+    impl->InvalidateCacheRange(start_address, length);
+}
+
+void Jit::Reset() {
+    impl->Reset();
+}
+
+void Jit::HaltExecution(HaltReason hr) {
+    impl->HaltExecution(hr);
+}
+
+void Jit::ClearHalt(HaltReason hr) {
+    impl->ClearHalt(hr);
+}
+
+u64 Jit::GetSP() const {
+    return impl->GetSP();
+}
+
+void Jit::SetSP(u64 value) {
+    impl->SetSP(value);
+}
+
+u64 Jit::GetPC() const {
+    return impl->GetPC();
+}
+
+void Jit::SetPC(u64 value) {
+    impl->SetPC(value);
+}
+
+u64 Jit::GetRegister(size_t index) const {
+    return impl->GetRegister(index);
+}
+
+void Jit::SetRegister(size_t index, u64 value) {
+    impl->SetRegister(index, value);
+}
+
+std::array<u64, 31> Jit::GetRegisters() const {
+    return impl->GetRegisters();
+}
+
+void Jit::SetRegisters(const std::array<u64, 31>& value) {
+    impl->SetRegisters(value);
+}
+
+Vector Jit::GetVector(size_t index) const {
+    return impl->GetVector(index);
+}
+
+void Jit::SetVector(size_t index, Vector value) {
+    impl->SetVector(index, value);
+}
+
+std::array<Vector, 32> Jit::GetVectors() const {
+    return impl->GetVectors();
+}
+
+void Jit::SetVectors(const std::array<Vector, 32>& value) {
+    impl->SetVectors(value);
+}
+
+u32 Jit::GetFpcr() const {
+    return impl->GetFpcr();
+}
+
+void Jit::SetFpcr(u32 value) {
+    impl->SetFpcr(value);
+}
+
+u32 Jit::GetFpsr() const {
+    return impl->GetFpsr();
+}
+
+void Jit::SetFpsr(u32 value) {
+    impl->SetFpsr(value);
+}
+
+u32 Jit::GetPstate() const {
+    return impl->GetPstate();
+}
+
+void Jit::SetPstate(u32 value) {
+    impl->SetPstate(value);
+}
+
+void Jit::ClearExclusiveState() {
+    impl->ClearExclusiveState();
+}
+
+bool Jit::IsExecuting() const {
+    return impl->IsExecuting();
+}
+
+std::string Jit::Disassemble() const {
+    return impl->Disassemble();
+}
+
+}  // namespace Dynarmic::A64