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// Copyright 2018 Yuzu Emulator Team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <dynarmic/A64/a64.h>
#include <dynarmic/A64/config.h>
#include "core/arm/dynarmic/arm_dynarmic.h"
#include "core/core_timing.h"
#include "core/hle/kernel/svc.h"
#include "core/memory.h"
class ARM_Dynarmic_Callbacks : public Dynarmic::A64::UserCallbacks {
public:
explicit ARM_Dynarmic_Callbacks(ARM_Dynarmic& parent) : parent(parent) {}
~ARM_Dynarmic_Callbacks() = default;
virtual u8 MemoryRead8(u64 vaddr) override {
return Memory::Read8(vaddr);
}
virtual u16 MemoryRead16(u64 vaddr) override {
return Memory::Read16(vaddr);
}
virtual u32 MemoryRead32(u64 vaddr) override {
return Memory::Read32(vaddr);
}
virtual u64 MemoryRead64(u64 vaddr) override {
return Memory::Read64(vaddr);
}
virtual void MemoryWrite8(u64 vaddr, u8 value) override {
Memory::Write8(vaddr, value);
}
virtual void MemoryWrite16(u64 vaddr, u16 value) override {
Memory::Write16(vaddr, value);
}
virtual void MemoryWrite32(u64 vaddr, u32 value) override {
Memory::Write32(vaddr, value);
}
virtual void MemoryWrite64(u64 vaddr, u64 value) override {
Memory::Write64(vaddr, value);
}
virtual void InterpreterFallback(u64 pc, size_t num_instructions) override {
ARM_Interface::ThreadContext 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;
}
virtual void CallSVC(u32 swi) override {
printf("svc %x\n", swi);
Kernel::CallSVC(swi);
}
virtual void AddTicks(u64 ticks) override {
if (ticks > ticks_remaining) {
ticks_remaining = 0;
return;
}
ticks -= ticks_remaining;
}
virtual u64 GetTicksRemaining() override {
return ticks_remaining;
}
ARM_Dynarmic& parent;
size_t ticks_remaining = 0;
size_t num_interpreted_instructions = 0;
u64 tpidrr0_el0 = 0;
};
ARM_Dynarmic::ARM_Dynarmic()
: cb(std::make_unique<ARM_Dynarmic_Callbacks>(*this)),
jit(Dynarmic::A64::UserConfig{cb.get()}) {
ARM_Interface::ThreadContext ctx;
inner_unicorn.SaveContext(ctx);
LoadContext(ctx);
}
ARM_Dynarmic::~ARM_Dynarmic() = default;
void ARM_Dynarmic::MapBackingMemory(u64 address, size_t size, u8* memory,
Kernel::VMAPermission perms) {
inner_unicorn.MapBackingMemory(address, size, memory, perms);
}
void ARM_Dynarmic::SetPC(u64 pc) {
jit.SetPC(pc);
}
u64 ARM_Dynarmic::GetPC() const {
return jit.GetPC();
}
u64 ARM_Dynarmic::GetReg(int index) const {
return jit.GetRegister(index);
}
void ARM_Dynarmic::SetReg(int index, u64 value) {
jit.SetRegister(index, value);
}
u128 ARM_Dynarmic::GetExtReg(int index) const {
return jit.GetVector(index);
}
void ARM_Dynarmic::SetExtReg(int index, u128 value) {
jit.SetVector(index, value);
}
u32 ARM_Dynarmic::GetVFPReg(int /*index*/) const {
UNIMPLEMENTED();
return {};
}
void ARM_Dynarmic::SetVFPReg(int /*index*/, u32 /*value*/) {
UNIMPLEMENTED();
}
u32 ARM_Dynarmic::GetCPSR() const {
return jit.GetPstate();
}
void ARM_Dynarmic::SetCPSR(u32 cpsr) {
jit.SetPstate(cpsr);
}
u64 ARM_Dynarmic::GetTlsAddress() const {
return cb->tpidrr0_el0;
}
void ARM_Dynarmic::SetTlsAddress(u64 address) {
cb->tpidrr0_el0 = address;
}
void ARM_Dynarmic::ExecuteInstructions(int num_instructions) {
cb->ticks_remaining = num_instructions;
jit.Run();
CoreTiming::AddTicks(num_instructions - cb->num_interpreted_instructions);
cb->num_interpreted_instructions = 0;
}
void ARM_Dynarmic::SaveContext(ARM_Interface::ThreadContext& ctx) {
ctx.cpu_registers = jit.GetRegisters();
ctx.sp = jit.GetSP();
ctx.pc = jit.GetPC();
ctx.cpsr = jit.GetPstate();
ctx.fpu_registers = jit.GetVectors();
ctx.fpscr = jit.GetFpcr();
ctx.tls_address = cb->tpidrr0_el0;
}
void ARM_Dynarmic::LoadContext(const ARM_Interface::ThreadContext& ctx) {
jit.SetRegisters(ctx.cpu_registers);
jit.SetSP(ctx.sp);
jit.SetPC(ctx.pc);
jit.SetPstate(ctx.cpsr);
jit.SetVectors(ctx.fpu_registers);
jit.SetFpcr(ctx.fpscr);
cb->tpidrr0_el0 = ctx.tls_address;
}
void ARM_Dynarmic::PrepareReschedule() {
if (jit.IsExecuting()) {
jit.HaltExecution();
}
}
void ARM_Dynarmic::ClearInstructionCache() {
jit.ClearCache();
}
void ARM_Dynarmic::PageTableChanged() {
UNIMPLEMENTED();
}
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