5 files changed, 9 insertions, 381 deletions

diff --git a/src/core/arm/dynarmic/arm_dynarmic_32.cpp b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
index b5f28a86e..6dc03f3b1 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_32.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_32.cpp
@@ -7,6 +7,7 @@
 #include <dynarmic/A32/a32.h>
 #include <dynarmic/A32/config.h>
 #include <dynarmic/A32/context.h>
+#include "common/assert.h"
 #include "common/logging/log.h"
 #include "common/page_table.h"
 #include "core/arm/cpu_interrupt_handler.h"
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.cpp b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
index ce9968724..9f170a224 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.cpp
@@ -6,6 +6,7 @@
 #include <memory>
 #include <dynarmic/A64/a64.h>
 #include <dynarmic/A64/config.h>
+#include "common/assert.h"
 #include "common/logging/log.h"
 #include "common/page_table.h"
 #include "core/arm/cpu_interrupt_handler.h"
@@ -13,7 +14,6 @@
 #include "core/arm/dynarmic/arm_exclusive_monitor.h"
 #include "core/core.h"
 #include "core/core_timing.h"
-#include "core/core_timing_util.h"
 #include "core/gdbstub/gdbstub.h"
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/process.h"
@@ -82,16 +82,9 @@ public:
     }
 
     void InterpreterFallback(u64 pc, std::size_t num_instructions) override {
-        LOG_INFO(Core_ARM, "Unicorn fallback @ 0x{:X} for {} instructions (instr = {:08X})", pc,
-                 num_instructions, MemoryReadCode(pc));
-
-        ARM_Interface::ThreadContext64 ctx;
-        parent.SaveContext(ctx);
-        parent.inner_unicorn.LoadContext(ctx);
-        parent.inner_unicorn.ExecuteInstructions(num_instructions);
-        parent.inner_unicorn.SaveContext(ctx);
-        parent.LoadContext(ctx);
-        num_interpreted_instructions += num_instructions;
+        LOG_ERROR(Core_ARM,
+                  "Unimplemented instruction @ 0x{:X} for {} instructions (instr = {:08X})", pc,
+                  num_instructions, MemoryReadCode(pc));
     }
 
     void ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) override {
@@ -127,18 +120,17 @@ public:
         if (parent.uses_wall_clock) {
             return;
         }
+
         // Divide the number of ticks by the amount of CPU cores. TODO(Subv): This yields only a
         // rough approximation of the amount of executed ticks in the system, it may be thrown off
         // if not all cores are doing a similar amount of work. Instead of doing this, we should
         // device a way so that timing is consistent across all cores without increasing the ticks 4
         // times.
-        u64 amortized_ticks =
-            (ticks - num_interpreted_instructions) / Core::Hardware::NUM_CPU_CORES;
+        u64 amortized_ticks = ticks / Core::Hardware::NUM_CPU_CORES;
         // Always execute at least one tick.
         amortized_ticks = std::max<u64>(amortized_ticks, 1);
 
         parent.system.CoreTiming().AddTicks(amortized_ticks);
-        num_interpreted_instructions = 0;
     }
 
     u64 GetTicksRemaining() override {
@@ -156,7 +148,6 @@ public:
     }
 
     ARM_Dynarmic_64& parent;
-    std::size_t num_interpreted_instructions = 0;
     u64 tpidrro_el0 = 0;
     u64 tpidr_el0 = 0;
     static constexpr u64 minimum_run_cycles = 1000U;
@@ -248,12 +239,8 @@ ARM_Dynarmic_64::ARM_Dynarmic_64(System& system, CPUInterrupts& interrupt_handle
                                  bool uses_wall_clock, ExclusiveMonitor& exclusive_monitor,
                                  std::size_t core_index)
     : ARM_Interface{system, interrupt_handlers, uses_wall_clock},
-      cb(std::make_unique<DynarmicCallbacks64>(*this)), inner_unicorn{system, interrupt_handlers,
-                                                                      uses_wall_clock,
-                                                                      ARM_Unicorn::Arch::AArch64,
-                                                                      core_index},
-      core_index{core_index}, exclusive_monitor{
-                                  dynamic_cast<DynarmicExclusiveMonitor&>(exclusive_monitor)} {}
+      cb(std::make_unique<DynarmicCallbacks64>(*this)), core_index{core_index},
+      exclusive_monitor{dynamic_cast<DynarmicExclusiveMonitor&>(exclusive_monitor)} {}
 
 ARM_Dynarmic_64::~ARM_Dynarmic_64() = default;
 
diff --git a/src/core/arm/dynarmic/arm_dynarmic_64.h b/src/core/arm/dynarmic/arm_dynarmic_64.h
index 403c55961..28e11a17d 100644
--- a/src/core/arm/dynarmic/arm_dynarmic_64.h
+++ b/src/core/arm/dynarmic/arm_dynarmic_64.h
@@ -12,7 +12,6 @@
 #include "common/hash.h"
 #include "core/arm/arm_interface.h"
 #include "core/arm/exclusive_monitor.h"
-#include "core/arm/unicorn/arm_unicorn.h"
 
 namespace Core::Memory {
 class Memory;
@@ -71,7 +70,6 @@ private:
     std::unique_ptr<DynarmicCallbacks64> cb;
     JitCacheType jit_cache;
     std::shared_ptr<Dynarmic::A64::Jit> jit;
-    ARM_Unicorn inner_unicorn;
 
     std::size_t core_index;
     DynarmicExclusiveMonitor& exclusive_monitor;
diff --git a/src/core/arm/unicorn/arm_unicorn.cpp b/src/core/arm/unicorn/arm_unicorn.cpp
deleted file mode 100644
index 1df3f3ed1..000000000
--- a/src/core/arm/unicorn/arm_unicorn.cpp
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <unicorn/arm64.h>
-#include "common/assert.h"
-#include "common/microprofile.h"
-#include "core/arm/cpu_interrupt_handler.h"
-#include "core/arm/unicorn/arm_unicorn.h"
-#include "core/core.h"
-#include "core/core_timing.h"
-#include "core/hle/kernel/scheduler.h"
-#include "core/hle/kernel/svc.h"
-#include "core/memory.h"
-
-namespace Core {
-
-// Load Unicorn DLL once on Windows using RAII
-#ifdef _MSC_VER
-#include <unicorn_dynload.h>
-struct LoadDll {
-private:
-    LoadDll() {
-        ASSERT(uc_dyn_load(NULL, 0));
-    }
-    ~LoadDll() {
-        ASSERT(uc_dyn_free());
-    }
-    static LoadDll g_load_dll;
-};
-LoadDll LoadDll::g_load_dll;
-#endif
-
-#define CHECKED(expr)                                                                              \
-    do {                                                                                           \
-        if (auto _cerr = (expr)) {                                                                 \
-            ASSERT_MSG(false, "Call " #expr " failed with error: {} ({})\n", _cerr,                \
-                       uc_strerror(_cerr));                                                        \
-        }                                                                                          \
-    } while (0)
-
-static void CodeHook(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) {
-    GDBStub::BreakpointAddress bkpt =
-        GDBStub::GetNextBreakpointFromAddress(address, GDBStub::BreakpointType::Execute);
-    if (GDBStub::IsMemoryBreak() ||
-        (bkpt.type != GDBStub::BreakpointType::None && address == bkpt.address)) {
-        auto core = static_cast<ARM_Unicorn*>(user_data);
-        core->RecordBreak(bkpt);
-        uc_emu_stop(uc);
-    }
-}
-
-static bool UnmappedMemoryHook(uc_engine* uc, uc_mem_type type, u64 addr, int size, u64 value,
-                               void* user_data) {
-    auto* const system = static_cast<System*>(user_data);
-
-    ARM_Interface::ThreadContext64 ctx{};
-    system->CurrentArmInterface().SaveContext(ctx);
-    ASSERT_MSG(false, "Attempted to read from unmapped memory: 0x{:X}, pc=0x{:X}, lr=0x{:X}", addr,
-               ctx.pc, ctx.cpu_registers[30]);
-
-    return false;
-}
-
-ARM_Unicorn::ARM_Unicorn(System& system, CPUInterrupts& interrupt_handlers, bool uses_wall_clock,
-                         Arch architecture, std::size_t core_index)
-    : ARM_Interface{system, interrupt_handlers, uses_wall_clock}, core_index{core_index} {
-    const auto arch = architecture == Arch::AArch32 ? UC_ARCH_ARM : UC_ARCH_ARM64;
-    CHECKED(uc_open(arch, UC_MODE_ARM, &uc));
-
-    auto fpv = 3 << 20;
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_CPACR_EL1, &fpv));
-
-    uc_hook hook{};
-    CHECKED(uc_hook_add(uc, &hook, UC_HOOK_INTR, (void*)InterruptHook, this, 0, UINT64_MAX));
-    CHECKED(uc_hook_add(uc, &hook, UC_HOOK_MEM_INVALID, (void*)UnmappedMemoryHook, &system, 0,
-                        UINT64_MAX));
-    if (GDBStub::IsServerEnabled()) {
-        CHECKED(uc_hook_add(uc, &hook, UC_HOOK_CODE, (void*)CodeHook, this, 0, UINT64_MAX));
-        last_bkpt_hit = false;
-    }
-}
-
-ARM_Unicorn::~ARM_Unicorn() {
-    CHECKED(uc_close(uc));
-}
-
-void ARM_Unicorn::SetPC(u64 pc) {
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_PC, &pc));
-}
-
-u64 ARM_Unicorn::GetPC() const {
-    u64 val{};
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_PC, &val));
-    return val;
-}
-
-u64 ARM_Unicorn::GetReg(int regn) const {
-    u64 val{};
-    auto treg = UC_ARM64_REG_SP;
-    if (regn <= 28) {
-        treg = (uc_arm64_reg)(UC_ARM64_REG_X0 + regn);
-    } else if (regn < 31) {
-        treg = (uc_arm64_reg)(UC_ARM64_REG_X29 + regn - 29);
-    }
-    CHECKED(uc_reg_read(uc, treg, &val));
-    return val;
-}
-
-void ARM_Unicorn::SetReg(int regn, u64 val) {
-    auto treg = UC_ARM64_REG_SP;
-    if (regn <= 28) {
-        treg = (uc_arm64_reg)(UC_ARM64_REG_X0 + regn);
-    } else if (regn < 31) {
-        treg = (uc_arm64_reg)(UC_ARM64_REG_X29 + regn - 29);
-    }
-    CHECKED(uc_reg_write(uc, treg, &val));
-}
-
-u128 ARM_Unicorn::GetVectorReg(int /*index*/) const {
-    UNIMPLEMENTED();
-    static constexpr u128 res{};
-    return res;
-}
-
-void ARM_Unicorn::SetVectorReg(int /*index*/, u128 /*value*/) {
-    UNIMPLEMENTED();
-}
-
-u32 ARM_Unicorn::GetPSTATE() const {
-    u64 nzcv{};
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &nzcv));
-    return static_cast<u32>(nzcv);
-}
-
-void ARM_Unicorn::SetPSTATE(u32 pstate) {
-    u64 nzcv = pstate;
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &nzcv));
-}
-
-VAddr ARM_Unicorn::GetTlsAddress() const {
-    u64 base{};
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_TPIDRRO_EL0, &base));
-    return base;
-}
-
-void ARM_Unicorn::SetTlsAddress(VAddr base) {
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_TPIDRRO_EL0, &base));
-}
-
-u64 ARM_Unicorn::GetTPIDR_EL0() const {
-    u64 value{};
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_TPIDR_EL0, &value));
-    return value;
-}
-
-void ARM_Unicorn::SetTPIDR_EL0(u64 value) {
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_TPIDR_EL0, &value));
-}
-
-void ARM_Unicorn::ChangeProcessorID(std::size_t new_core_id) {
-    core_index = new_core_id;
-}
-
-void ARM_Unicorn::Run() {
-    if (GDBStub::IsServerEnabled()) {
-        ExecuteInstructions(std::max(4000000U, 0U));
-    } else {
-        while (true) {
-            if (interrupt_handlers[core_index].IsInterrupted()) {
-                return;
-            }
-            ExecuteInstructions(10);
-        }
-    }
-}
-
-void ARM_Unicorn::Step() {
-    ExecuteInstructions(1);
-}
-
-MICROPROFILE_DEFINE(ARM_Jit_Unicorn, "ARM JIT", "Unicorn", MP_RGB(255, 64, 64));
-
-void ARM_Unicorn::ExecuteInstructions(std::size_t num_instructions) {
-    MICROPROFILE_SCOPE(ARM_Jit_Unicorn);
-
-    // Temporarily map the code page for Unicorn
-    u64 map_addr{GetPC() & ~Memory::PAGE_MASK};
-    std::vector<u8> page_buffer(Memory::PAGE_SIZE);
-    system.Memory().ReadBlock(map_addr, page_buffer.data(), page_buffer.size());
-
-    CHECKED(uc_mem_map_ptr(uc, map_addr, page_buffer.size(),
-                           UC_PROT_READ | UC_PROT_WRITE | UC_PROT_EXEC, page_buffer.data()));
-    CHECKED(uc_emu_start(uc, GetPC(), 1ULL << 63, 0, num_instructions));
-    CHECKED(uc_mem_unmap(uc, map_addr, page_buffer.size()));
-    if (GDBStub::IsServerEnabled()) {
-        if (last_bkpt_hit && last_bkpt.type == GDBStub::BreakpointType::Execute) {
-            uc_reg_write(uc, UC_ARM64_REG_PC, &last_bkpt.address);
-        }
-
-        Kernel::Thread* const thread = system.CurrentScheduler().GetCurrentThread();
-        SaveContext(thread->GetContext64());
-        if (last_bkpt_hit || GDBStub::IsMemoryBreak() || GDBStub::GetCpuStepFlag()) {
-            last_bkpt_hit = false;
-            GDBStub::Break();
-            GDBStub::SendTrap(thread, 5);
-        }
-    }
-}
-
-void ARM_Unicorn::SaveContext(ThreadContext64& ctx) {
-    int uregs[32];
-    void* tregs[32];
-
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_SP, &ctx.sp));
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_PC, &ctx.pc));
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &ctx.pstate));
-
-    for (auto i = 0; i < 29; ++i) {
-        uregs[i] = UC_ARM64_REG_X0 + i;
-        tregs[i] = &ctx.cpu_registers[i];
-    }
-    uregs[29] = UC_ARM64_REG_X29;
-    tregs[29] = (void*)&ctx.cpu_registers[29];
-    uregs[30] = UC_ARM64_REG_X30;
-    tregs[30] = (void*)&ctx.cpu_registers[30];
-
-    CHECKED(uc_reg_read_batch(uc, uregs, tregs, 31));
-
-    for (int i = 0; i < 32; ++i) {
-        uregs[i] = UC_ARM64_REG_Q0 + i;
-        tregs[i] = &ctx.vector_registers[i];
-    }
-
-    CHECKED(uc_reg_read_batch(uc, uregs, tregs, 32));
-}
-
-void ARM_Unicorn::LoadContext(const ThreadContext64& ctx) {
-    int uregs[32];
-    void* tregs[32];
-
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_SP, &ctx.sp));
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_PC, &ctx.pc));
-    CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &ctx.pstate));
-
-    for (int i = 0; i < 29; ++i) {
-        uregs[i] = UC_ARM64_REG_X0 + i;
-        tregs[i] = (void*)&ctx.cpu_registers[i];
-    }
-    uregs[29] = UC_ARM64_REG_X29;
-    tregs[29] = (void*)&ctx.cpu_registers[29];
-    uregs[30] = UC_ARM64_REG_X30;
-    tregs[30] = (void*)&ctx.cpu_registers[30];
-
-    CHECKED(uc_reg_write_batch(uc, uregs, tregs, 31));
-
-    for (auto i = 0; i < 32; ++i) {
-        uregs[i] = UC_ARM64_REG_Q0 + i;
-        tregs[i] = (void*)&ctx.vector_registers[i];
-    }
-
-    CHECKED(uc_reg_write_batch(uc, uregs, tregs, 32));
-}
-
-void ARM_Unicorn::PrepareReschedule() {
-    CHECKED(uc_emu_stop(uc));
-}
-
-void ARM_Unicorn::ClearExclusiveState() {}
-
-void ARM_Unicorn::ClearInstructionCache() {}
-
-void ARM_Unicorn::RecordBreak(GDBStub::BreakpointAddress bkpt) {
-    last_bkpt = bkpt;
-    last_bkpt_hit = true;
-}
-
-void ARM_Unicorn::InterruptHook(uc_engine* uc, u32 int_no, void* user_data) {
-    u32 esr{};
-    CHECKED(uc_reg_read(uc, UC_ARM64_REG_ESR, &esr));
-
-    const auto ec = esr >> 26;
-    const auto iss = esr & 0xFFFFFF;
-
-    auto* const arm_instance = static_cast<ARM_Unicorn*>(user_data);
-
-    switch (ec) {
-    case 0x15: // SVC
-        Kernel::Svc::Call(arm_instance->system, iss);
-        break;
-    }
-}
-
-} // namespace Core
diff --git a/src/core/arm/unicorn/arm_unicorn.h b/src/core/arm/unicorn/arm_unicorn.h
deleted file mode 100644
index 810aff311..000000000
--- a/src/core/arm/unicorn/arm_unicorn.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <unicorn/unicorn.h>
-#include "common/common_types.h"
-#include "core/arm/arm_interface.h"
-#include "core/gdbstub/gdbstub.h"
-
-namespace Core {
-
-class System;
-
-class ARM_Unicorn final : public ARM_Interface {
-public:
-    enum class Arch {
-        AArch32, // 32-bit ARM
-        AArch64, // 64-bit ARM
-    };
-
-    explicit ARM_Unicorn(System& system, CPUInterrupts& interrupt_handlers, bool uses_wall_clock,
-                         Arch architecture, std::size_t core_index);
-    ~ARM_Unicorn() override;
-
-    void SetPC(u64 pc) override;
-    u64 GetPC() const override;
-    u64 GetReg(int index) const override;
-    void SetReg(int index, u64 value) override;
-    u128 GetVectorReg(int index) const override;
-    void SetVectorReg(int index, u128 value) override;
-    u32 GetPSTATE() const override;
-    void SetPSTATE(u32 pstate) override;
-    VAddr GetTlsAddress() const override;
-    void SetTlsAddress(VAddr address) override;
-    void SetTPIDR_EL0(u64 value) override;
-    u64 GetTPIDR_EL0() const override;
-    void ChangeProcessorID(std::size_t new_core_id) override;
-    void PrepareReschedule() override;
-    void ClearExclusiveState() override;
-    void ExecuteInstructions(std::size_t num_instructions);
-    void Run() override;
-    void Step() override;
-    void ClearInstructionCache() override;
-    void PageTableChanged(Common::PageTable&, std::size_t) override {}
-    void RecordBreak(GDBStub::BreakpointAddress bkpt);
-
-    void SaveContext(ThreadContext32& ctx) override {}
-    void SaveContext(ThreadContext64& ctx) override;
-    void LoadContext(const ThreadContext32& ctx) override {}
-    void LoadContext(const ThreadContext64& ctx) override;
-
-private:
-    static void InterruptHook(uc_engine* uc, u32 int_no, void* user_data);
-
-    uc_engine* uc{};
-    GDBStub::BreakpointAddress last_bkpt{};
-    bool last_bkpt_hit = false;
-    std::size_t core_index;
-};
-
-} // namespace Core