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PPUThread.cpp
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PPUThread.cpp
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#include "stdafx.h"
#include "Utilities/VirtualMemory.h"
#include "Utilities/sysinfo.h"
#include "Utilities/JIT.h"
#include "Crypto/sha1.h"
#include "Emu/Memory/vm_reservation.h"
#include "Emu/VFS.h"
#include "PPUThread.h"
#include "PPUInterpreter.h"
#include "PPUAnalyser.h"
#include "PPUModule.h"
#include "SPURecompiler.h"
#include "lv2/sys_sync.h"
#include "lv2/sys_prx.h"
#include "Emu/GDB.h"
#ifdef LLVM_AVAILABLE
#include "restore_new.h"
#ifdef _MSC_VER
#pragma warning(push, 0)
#else
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wall"
#pragma GCC diagnostic ignored "-Wextra"
#pragma GCC diagnostic ignored "-Wold-style-cast"
#endif
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ADT/Triple.h"
#include "llvm/IR/LLVMContext.h"
//#include "llvm/IR/Dominators.h"
#include "llvm/IR/Verifier.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/LegacyPassManager.h"
//#include "llvm/IR/Module.h"
//#include "llvm/IR/Function.h"
//#include "llvm/Analysis/Passes.h"
//#include "llvm/Analysis/BasicAliasAnalysis.h"
//#include "llvm/Analysis/TargetTransformInfo.h"
//#include "llvm/Analysis/MemoryDependenceAnalysis.h"
//#include "llvm/Analysis/LoopInfo.h"
//#include "llvm/Analysis/ScalarEvolution.h"
#include "llvm/Analysis/Lint.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Vectorize.h"
#ifdef _MSC_VER
#pragma warning(pop)
#else
#pragma GCC diagnostic pop
#endif
#include "define_new_memleakdetect.h"
#include "PPUTranslator.h"
#endif
#include <thread>
#include <cfenv>
const bool s_use_ssse3 = utils::has_ssse3();
extern u64 get_guest_system_time();
extern atomic_t<const char*> g_progr;
extern atomic_t<u32> g_progr_ptotal;
extern atomic_t<u32> g_progr_pdone;
enum class join_status : u32
{
joinable = 0,
detached = 0u-1,
exited = 0u-2,
zombie = 0u-3,
};
template <>
void fmt_class_string<join_status>::format(std::string& out, u64 arg)
{
format_enum(out, arg, [](join_status js)
{
switch (js)
{
case join_status::joinable: return "";
case join_status::detached: return "detached";
case join_status::zombie: return "zombie";
case join_status::exited: return "exited";
}
return unknown;
});
}
template <>
void fmt_class_string<ppu_decoder_type>::format(std::string& out, u64 arg)
{
format_enum(out, arg, [](ppu_decoder_type type)
{
switch (type)
{
case ppu_decoder_type::precise: return "Interpreter (precise)";
case ppu_decoder_type::fast: return "Interpreter (fast)";
case ppu_decoder_type::llvm: return "Recompiler (LLVM)";
}
return unknown;
});
}
// Table of identical interpreter functions when precise contains SSE2 version, and fast contains SSSE3 functions
const std::pair<ppu_inter_func_t, ppu_inter_func_t> s_ppu_dispatch_table[]
{
#define FUNC(x) {&ppu_interpreter_precise::x, &ppu_interpreter_fast::x}
FUNC(VPERM),
FUNC(LVLX),
FUNC(LVLXL),
FUNC(LVRX),
FUNC(LVRXL),
FUNC(STVLX),
FUNC(STVLXL),
FUNC(STVRX),
FUNC(STVRXL),
#undef FUNC
};
extern const ppu_decoder<ppu_interpreter_precise> g_ppu_interpreter_precise([](auto& table)
{
if (s_use_ssse3)
{
for (auto& func : table)
{
for (const auto& pair : s_ppu_dispatch_table)
{
if (pair.first == func)
{
func = pair.second;
break;
}
}
}
}
});
extern const ppu_decoder<ppu_interpreter_fast> g_ppu_interpreter_fast([](auto& table)
{
if (!s_use_ssse3)
{
for (auto& func : table)
{
for (const auto& pair : s_ppu_dispatch_table)
{
if (pair.second == func)
{
func = pair.first;
break;
}
}
}
}
});
extern void ppu_initialize();
extern void ppu_initialize(const ppu_module& info);
static void ppu_initialize2(class jit_compiler& jit, const ppu_module& module_part, const std::string& cache_path, const std::string& obj_name);
extern void ppu_execute_syscall(ppu_thread& ppu, u64 code);
static bool ppu_break(ppu_thread& ppu, ppu_opcode_t op);
// Get pointer to executable cache
template<typename T = u64>
static T& ppu_ref(u32 addr)
{
return *reinterpret_cast<T*>(vm::g_exec_addr + u64{addr} * 2);
}
// Get interpreter cache value
static u64 ppu_cache(u32 addr)
{
// Select opcode table
const auto& table = *(
g_cfg.core.ppu_decoder == ppu_decoder_type::precise ? &g_ppu_interpreter_precise.get_table() :
g_cfg.core.ppu_decoder == ppu_decoder_type::fast ? &g_ppu_interpreter_fast.get_table() :
(fmt::throw_exception("Invalid PPU decoder"), nullptr));
const u32 value = vm::read32(addr);
return u64{value} << 32 | ::narrow<u32>(reinterpret_cast<std::uintptr_t>(table[ppu_decode(value)]));
}
static bool ppu_fallback(ppu_thread& ppu, ppu_opcode_t op)
{
if (g_cfg.core.ppu_debug)
{
ppu_log.error("Unregistered instruction: 0x%08x", op.opcode);
}
ppu_ref(ppu.cia) = ppu_cache(ppu.cia);
return false;
}
// TODO: Make this a dispatch call
void ppu_recompiler_fallback(ppu_thread& ppu)
{
if (g_cfg.core.ppu_debug)
{
ppu_log.error("Unregistered PPU Function (LR=0x%llx)", ppu.lr);
}
const auto& table = g_ppu_interpreter_fast.get_table();
const auto cache = vm::g_exec_addr;
while (true)
{
// Run instructions in interpreter
if (const u32 op = *reinterpret_cast<u32*>(cache + u64{ppu.cia} * 2 + 4);
table[ppu_decode(op)](ppu, { op })) [[likely]]
{
ppu.cia += 4;
continue;
}
if (uptr func = *reinterpret_cast<u32*>(cache + u64{ppu.cia} * 2);
func != reinterpret_cast<uptr>(ppu_recompiler_fallback))
{
// We found a recompiler function at cia, return
return;
}
if (ppu.test_stopped())
{
return;
}
}
}
static std::unordered_map<u32, u32>* s_ppu_toc;
static bool ppu_check_toc(ppu_thread& ppu, ppu_opcode_t op)
{
// Compare TOC with expected value
const auto found = s_ppu_toc->find(ppu.cia);
if (ppu.gpr[2] != found->second)
{
ppu_log.error("Unexpected TOC (0x%x, expected 0x%x)", ppu.gpr[2], found->second);
if (!ppu.state.test_and_set(cpu_flag::dbg_pause) && ppu.check_state())
{
return false;
}
}
// Fallback to the interpreter function
if (reinterpret_cast<decltype(&ppu_interpreter::UNK)>(ppu_cache(ppu.cia) & 0xffffffff)(ppu, op))
{
ppu.cia += 4;
}
return false;
}
extern void ppu_register_range(u32 addr, u32 size)
{
if (!size)
{
ppu_log.error("ppu_register_range(0x%x): empty range", addr);
return;
}
// Register executable range at
utils::memory_commit(&ppu_ref(addr), size * 2, utils::protection::rw);
vm::page_protect(addr, align(size, 0x10000), 0, vm::page_executable);
const u32 fallback = ::narrow<u32>(g_cfg.core.ppu_decoder == ppu_decoder_type::llvm ?
reinterpret_cast<uptr>(ppu_recompiler_fallback) : reinterpret_cast<uptr>(ppu_fallback));
size &= ~3; // Loop assumes `size = n * 4`, enforce that by rounding down
while (size)
{
ppu_ref(addr) = u64{vm::read32(addr)} << 32 | fallback;
addr += 4;
size -= 4;
}
}
extern void ppu_register_function_at(u32 addr, u32 size, ppu_function_t ptr)
{
// Initialize specific function
if (ptr)
{
ppu_ref<u32>(addr) = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(ptr));
return;
}
if (!size)
{
if (g_cfg.core.ppu_debug)
{
ppu_log.error("ppu_register_function_at(0x%x): empty range", addr);
}
return;
}
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm)
{
return;
}
// Initialize interpreter cache
const u32 _break = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(ppu_break));
while (size)
{
if (ppu_ref<u32>(addr) != _break)
{
ppu_ref(addr) = ppu_cache(addr);
}
addr += 4;
size -= 4;
}
}
// Breakpoint entry point
static bool ppu_break(ppu_thread& ppu, ppu_opcode_t op)
{
// Pause and wait if necessary
bool status = ppu.state.test_and_set(cpu_flag::dbg_pause);
g_fxo->get<gdb_server>()->pause_from(&ppu);
if (!status && ppu.check_state())
{
return false;
}
// Fallback to the interpreter function
if (reinterpret_cast<decltype(&ppu_interpreter::UNK)>(ppu_cache(ppu.cia) & 0xffffffff)(ppu, op))
{
ppu.cia += 4;
}
return false;
}
// Set or remove breakpoint
extern void ppu_breakpoint(u32 addr, bool isAdding)
{
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm)
{
return;
}
const auto _break = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(&ppu_break));
if (isAdding)
{
// Set breakpoint
ppu_ref<u32>(addr) = _break;
}
else
{
// Remove breakpoint
ppu_ref(addr) = ppu_cache(addr);
}
}
//sets breakpoint, does nothing if there is a breakpoint there already
extern void ppu_set_breakpoint(u32 addr)
{
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm)
{
return;
}
const auto _break = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(&ppu_break));
if (ppu_ref<u32>(addr) != _break)
{
ppu_ref<u32>(addr) = _break;
}
}
//removes breakpoint, does nothing if there is no breakpoint at location
extern void ppu_remove_breakpoint(u32 addr)
{
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm)
{
return;
}
const auto _break = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(&ppu_break));
if (ppu_ref<u32>(addr) == _break)
{
ppu_ref(addr) = ppu_cache(addr);
}
}
extern bool ppu_patch(u32 addr, u32 value)
{
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm && Emu.GetStatus() != system_state::ready)
{
// TODO: support recompilers
ppu_log.fatal("Patch failed at 0x%x: LLVM recompiler is used.", addr);
return false;
}
if (!vm::try_access(addr, &value, sizeof(value), true))
{
ppu_log.fatal("Patch failed at 0x%x: invalid memory address.", addr);
return false;
}
const u32 _break = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(&ppu_break));
const u32 fallback = ::narrow<u32>(reinterpret_cast<std::uintptr_t>(&ppu_fallback));
if (ppu_ref<u32>(addr) != _break && ppu_ref<u32>(addr) != fallback)
{
ppu_ref(addr) = ppu_cache(addr);
}
return true;
}
std::string ppu_thread::dump() const
{
std::string ret = cpu_thread::dump();
fmt::append(ret, "Priority: %d\n", +prio);
fmt::append(ret, "Stack: 0x%x..0x%x\n", stack_addr, stack_addr + stack_size - 1);
fmt::append(ret, "Joiner: %s\n", join_status(joiner.load()));
fmt::append(ret, "Commands: %u\n", cmd_queue.size());
const char* _func = current_function;
if (_func)
{
ret += "Current function: ";
ret += _func;
ret += '\n';
}
else if (is_paused())
{
if (const auto last_func = last_function)
{
_func = last_func;
ret += "Last function: ";
ret += _func;
ret += '\n';
}
}
if (const auto _time = start_time)
{
fmt::append(ret, "Waiting: %fs\n", (get_guest_system_time() - _time) / 1000000.);
}
else
{
ret += '\n';
}
if (!_func)
{
ret += '\n';
}
ret += "\nRegisters:\n=========\n";
for (uint i = 0; i < 32; ++i) fmt::append(ret, "GPR[%d] = 0x%llx\n", i, gpr[i]);
for (uint i = 0; i < 32; ++i) fmt::append(ret, "FPR[%d] = %.6G\n", i, fpr[i]);
for (uint i = 0; i < 32; ++i) fmt::append(ret, "VR[%d] = %s [x: %g y: %g z: %g w: %g]\n", i, vr[i], vr[i]._f[3], vr[i]._f[2], vr[i]._f[1], vr[i]._f[0]);
fmt::append(ret, "CR = 0x%08x\n", cr.pack());
fmt::append(ret, "LR = 0x%llx\n", lr);
fmt::append(ret, "CTR = 0x%llx\n", ctr);
fmt::append(ret, "VRSAVE = 0x%08x\n", vrsave);
fmt::append(ret, "XER = [CA=%u | OV=%u | SO=%u | CNT=%u]\n", xer.ca, xer.ov, xer.so, xer.cnt);
fmt::append(ret, "VSCR = [SAT=%u | NJ=%u]\n", sat, nj);
fmt::append(ret, "FPSCR = [FL=%u | FG=%u | FE=%u | FU=%u]\n", fpscr.fl, fpscr.fg, fpscr.fe, fpscr.fu);
fmt::append(ret, "\nCall stack:\n=========\n0x%08x (0x0) called\n", cia);
// Determine stack range
u32 stack_ptr = static_cast<u32>(gpr[1]);
u32 stack_min = stack_ptr & ~0xfff;
u32 stack_max = stack_min + 4096;
while (stack_min && vm::check_addr(stack_min - 4096, 4096, vm::page_writable))
{
stack_min -= 4096;
}
while (stack_max + 4096 && vm::check_addr(stack_max, 4096, vm::page_writable))
{
stack_max += 4096;
}
for (u64 sp = vm::read64(stack_ptr); sp >= stack_min && std::max(sp, sp + 0x200) < stack_max; sp = vm::read64(static_cast<u32>(sp)))
{
// TODO: print also function addresses
fmt::append(ret, "> from 0x%08llx (0x0)\n", vm::read64(static_cast<u32>(sp + 16)));
}
return ret;
}
extern thread_local std::string(*g_tls_log_prefix)();
void ppu_thread::cpu_task()
{
std::fesetround(FE_TONEAREST);
if (g_cfg.core.set_daz_and_ftz && g_cfg.core.ppu_decoder != ppu_decoder_type::precise)
{
// Set DAZ and FTZ
_mm_setcsr(_mm_getcsr() | 0x8840);
}
// Execute cmd_queue
while (cmd64 cmd = cmd_wait())
{
const u32 arg = cmd.arg2<u32>(); // 32-bit arg extracted
switch (auto type = cmd.arg1<ppu_cmd>())
{
case ppu_cmd::opcode:
{
cmd_pop(), g_cfg.core.ppu_decoder == ppu_decoder_type::precise
? g_ppu_interpreter_precise.decode(arg)(*this, {arg})
: g_ppu_interpreter_fast.decode(arg)(*this, {arg});
break;
}
case ppu_cmd::set_gpr:
{
if (arg >= 32)
{
fmt::throw_exception("Invalid ppu_cmd::set_gpr arg (0x%x)" HERE, arg);
}
gpr[arg % 32] = cmd_get(1).as<u64>();
cmd_pop(1);
break;
}
case ppu_cmd::set_args:
{
if (arg > 8)
{
fmt::throw_exception("Unsupported ppu_cmd::set_args size (0x%x)" HERE, arg);
}
for (u32 i = 0; i < arg; i++)
{
gpr[i + 3] = cmd_get(1 + i).as<u64>();
}
cmd_pop(arg);
break;
}
case ppu_cmd::lle_call:
{
const vm::ptr<u32> opd(arg < 32 ? vm::cast(gpr[arg]) : vm::cast(arg));
cmd_pop(), fast_call(opd[0], opd[1]);
break;
}
case ppu_cmd::hle_call:
{
cmd_pop(), ppu_function_manager::get().at(arg)(*this);
break;
}
case ppu_cmd::ptr_call:
{
const ppu_function_t func = cmd_get(1).as<ppu_function_t>();
cmd_pop(1), func(*this);
break;
}
case ppu_cmd::initialize:
{
cmd_pop(), ppu_initialize();
break;
}
case ppu_cmd::sleep:
{
cmd_pop(), lv2_obj::sleep(*this);
break;
}
case ppu_cmd::reset_stack:
{
cmd_pop(), gpr[1] = stack_addr + stack_size - 0x70;
break;
}
default:
{
fmt::throw_exception("Unknown ppu_cmd(0x%x)" HERE, static_cast<u32>(type));
}
}
}
}
void ppu_thread::cpu_sleep()
{
vm::temporary_unlock(*this);
lv2_obj::awake(this);
}
void ppu_thread::cpu_mem()
{
vm::passive_lock(*this);
}
void ppu_thread::cpu_unmem()
{
state.test_and_set(cpu_flag::memory);
}
void ppu_thread::exec_task()
{
if (g_cfg.core.ppu_decoder == ppu_decoder_type::llvm)
{
while (!(state & (cpu_flag::ret + cpu_flag::exit + cpu_flag::stop + cpu_flag::dbg_global_stop)))
{
reinterpret_cast<ppu_function_t>(static_cast<std::uintptr_t>(ppu_ref<u32>(cia)))(*this);
}
return;
}
const auto cache = vm::g_exec_addr;
using func_t = decltype(&ppu_interpreter::UNK);
while (true)
{
const auto exec_op = [this](u64 op)
{
return reinterpret_cast<func_t>(op & 0xffffffff)(*this, {static_cast<u32>(op >> 32)});
};
if (cia % 8 || state) [[unlikely]]
{
if (test_stopped()) return;
// Decode single instruction (may be step)
if (exec_op(*reinterpret_cast<u64*>(cache + u64{cia} * 2))) { cia += 4; }
continue;
}
u64 op0, op1, op2, op3;
u64 _pos = u64{cia} * 2;
// Reinitialize
{
const v128 _op0 = *reinterpret_cast<const v128*>(cache + _pos);
const v128 _op1 = *reinterpret_cast<const v128*>(cache + _pos + 16);
op0 = _op0._u64[0];
op1 = _op0._u64[1];
op2 = _op1._u64[0];
op3 = _op1._u64[1];
}
while (exec_op(op0)) [[likely]]
{
cia += 4;
if (exec_op(op1)) [[likely]]
{
cia += 4;
if (exec_op(op2)) [[likely]]
{
cia += 4;
if (exec_op(op3)) [[likely]]
{
cia += 4;
if (state) [[unlikely]]
{
break;
}
_pos += 32;
const v128 _op0 = *reinterpret_cast<const v128*>(cache + _pos);
const v128 _op1 = *reinterpret_cast<const v128*>(cache + _pos + 16);
op0 = _op0._u64[0];
op1 = _op0._u64[1];
op2 = _op1._u64[0];
op3 = _op1._u64[1];
continue;
}
break;
}
break;
}
break;
}
}
}
ppu_thread::~ppu_thread()
{
// Deallocate Stack Area
vm::dealloc_verbose_nothrow(stack_addr, vm::stack);
}
ppu_thread::ppu_thread(const ppu_thread_params& param, std::string_view name, u32 prio, int detached)
: cpu_thread(idm::last_id())
, prio(prio)
, stack_size(param.stack_size)
, stack_addr(param.stack_addr)
, joiner(-!!detached)
, start_time(get_guest_system_time())
, ppu_tname(stx::shared_cptr<std::string>::make(name))
{
gpr[1] = stack_addr + stack_size - 0x70;
gpr[13] = param.tls_addr;
if (detached >= 0 && id != id_base)
{
// Initialize thread entry point
cmd_list
({
{ppu_cmd::set_args, 2}, param.arg0, param.arg1,
{ppu_cmd::lle_call, param.entry},
});
}
else
{
// Save entry for further use (interrupt handler workaround)
gpr[2] = param.entry;
}
// Trigger the scheduler
state += cpu_flag::suspend;
if (!g_use_rtm)
{
state += cpu_flag::memory;
}
}
void ppu_thread::cmd_push(cmd64 cmd)
{
// Reserve queue space
const u32 pos = cmd_queue.push_begin();
// Write single command
cmd_queue[pos] = cmd;
}
void ppu_thread::cmd_list(std::initializer_list<cmd64> list)
{
// Reserve queue space
const u32 pos = cmd_queue.push_begin(static_cast<u32>(list.size()));
// Write command tail in relaxed manner
for (u32 i = 1; i < list.size(); i++)
{
cmd_queue[pos + i].raw() = list.begin()[i];
}
// Write command head after all
cmd_queue[pos] = *list.begin();
}
void ppu_thread::cmd_pop(u32 count)
{
// Get current position
const u32 pos = cmd_queue.peek();
// Clean command buffer for command tail
for (u32 i = 1; i <= count; i++)
{
cmd_queue[pos + i].raw() = cmd64{};
}
// Free
cmd_queue.pop_end(count + 1);
}
cmd64 ppu_thread::cmd_wait()
{
while (true)
{
if (state) [[unlikely]]
{
if (is_stopped())
{
return cmd64{};
}
}
if (cmd64 result = cmd_queue[cmd_queue.peek()].exchange(cmd64{}))
{
return result;
}
thread_ctrl::wait();
}
}
be_t<u64>* ppu_thread::get_stack_arg(s32 i, u64 align)
{
if (align != 1 && align != 2 && align != 4 && align != 8 && align != 16) fmt::throw_exception("Unsupported alignment: 0x%llx" HERE, align);
return vm::_ptr<u64>(vm::cast((gpr[1] + 0x30 + 0x8 * (i - 1)) & (0 - align), HERE));
}
void ppu_thread::fast_call(u32 addr, u32 rtoc)
{
const auto old_cia = cia;
const auto old_rtoc = gpr[2];
const auto old_lr = lr;
const auto old_func = current_function;
const auto old_fmt = g_tls_log_prefix;
cia = addr;
gpr[2] = rtoc;
lr = ppu_function_manager::addr + 8; // HLE stop address
current_function = nullptr;
g_tls_log_prefix = []
{
const auto _this = static_cast<ppu_thread*>(get_current_cpu_thread());
static thread_local stx::shared_cptr<std::string> name_cache;
if (!_this->ppu_tname.is_equal(name_cache)) [[unlikely]]
{
name_cache = _this->ppu_tname.load();
}
return fmt::format("PPU[0x%x] Thread (%s) [0x%08x]", _this->id, *name_cache.get(), _this->cia);
};
auto at_ret = [&]()
{
if (std::uncaught_exceptions())
{
if (current_function)
{
if (start_time)
{
ppu_log.warning("'%s' aborted (%fs)", current_function, (get_guest_system_time() - start_time) / 1000000.);
}
else
{
ppu_log.warning("'%s' aborted", current_function);
}
}
current_function = old_func;
}
else
{
state -= cpu_flag::ret;
cia = old_cia;
gpr[2] = old_rtoc;
lr = old_lr;
current_function = old_func;
g_tls_log_prefix = old_fmt;
}
};
try
{
exec_task();
}
catch (...)
{
at_ret();
throw;
}
at_ret();
}
u32 ppu_thread::stack_push(u32 size, u32 align_v)
{
if (auto cpu = get_current_cpu_thread()) if (cpu->id_type() == 1)
{
ppu_thread& context = static_cast<ppu_thread&>(*cpu);
const u32 old_pos = vm::cast(context.gpr[1], HERE);
context.gpr[1] -= align(size + 4, 8); // room minimal possible size
context.gpr[1] &= ~(u64{align_v} - 1); // fix stack alignment
if (old_pos >= context.stack_addr && old_pos < context.stack_addr + context.stack_size && context.gpr[1] < context.stack_addr)
{
fmt::throw_exception("Stack overflow (size=0x%x, align=0x%x, SP=0x%llx, stack=*0x%x)" HERE, size, align_v, old_pos, context.stack_addr);
}
else
{
const u32 addr = static_cast<u32>(context.gpr[1]);
vm::_ref<nse_t<u32>>(addr + size) = old_pos;
std::memset(vm::base(addr), 0, size);
return addr;
}
}
fmt::throw_exception("Invalid thread" HERE);
}
void ppu_thread::stack_pop_verbose(u32 addr, u32 size) noexcept
{
if (auto cpu = get_current_cpu_thread()) if (cpu->id_type() == 1)
{
ppu_thread& context = static_cast<ppu_thread&>(*cpu);
if (context.gpr[1] != addr)
{
ppu_log.error("Stack inconsistency (addr=0x%x, SP=0x%llx, size=0x%x)", addr, context.gpr[1], size);
return;
}
context.gpr[1] = vm::_ref<nse_t<u32>>(context.gpr[1] + size);
return;
}
ppu_log.error("Invalid thread" HERE);
}
extern u64 get_timebased_time();
extern ppu_function_t ppu_get_syscall(u64 code);
extern __m128 sse_exp2_ps(__m128 A);
extern __m128 sse_log2_ps(__m128 A);
extern __m128i sse_altivec_vperm(__m128i A, __m128i B, __m128i C);
extern __m128i sse_altivec_vperm_v0(__m128i A, __m128i B, __m128i C);
extern __m128i sse_altivec_lvsl(u64 addr);
extern __m128i sse_altivec_lvsr(u64 addr);
extern __m128i sse_cellbe_lvlx(u64 addr);
extern __m128i sse_cellbe_lvrx(u64 addr);
extern void sse_cellbe_stvlx(u64 addr, __m128i a);
extern void sse_cellbe_stvrx(u64 addr, __m128i a);
extern __m128i sse_cellbe_lvlx_v0(u64 addr);
extern __m128i sse_cellbe_lvrx_v0(u64 addr);
extern void sse_cellbe_stvlx_v0(u64 addr, __m128i a);
extern void sse_cellbe_stvrx_v0(u64 addr, __m128i a);
[[noreturn]] static void ppu_trap(ppu_thread& ppu, u64 addr)
{
ppu.cia = ::narrow<u32>(addr);
fmt::throw_exception("Trap! (0x%llx)", addr);
}
[[noreturn]] static void ppu_error(ppu_thread& ppu, u64 addr, u32 op)
{
ppu.cia = ::narrow<u32>(addr);
fmt::throw_exception("Unknown/Illegal opcode 0x08x (0x%llx)", op, addr);
}
static void ppu_check(ppu_thread& ppu, u64 addr)
{
ppu.cia = ::narrow<u32>(addr);
if (ppu.test_stopped())
{
return;
}
}
static void ppu_trace(u64 addr)
{
ppu_log.notice("Trace: 0x%llx", addr);
}
template <typename T>
static T ppu_load_acquire_reservation(ppu_thread& ppu, u32 addr)
{
// Always load aligned 64-bit value (unaligned reservation will fail to store)
auto& data = vm::_ref<const atomic_be_t<u64>>(addr & -8);
const u64 size_off = (sizeof(T) * 8) & 63;
const u64 data_off = (addr & 7) * 8;
ppu.raddr = addr;
u64 count = 0;
while (g_use_rtm) [[likely]]
{
ppu.rtime = vm::reservation_acquire(addr, sizeof(T)) & -128;
ppu.rdata = data;
if ((vm::reservation_acquire(addr, sizeof(T)) & -128) == ppu.rtime) [[likely]]
{
if (count >= 10) [[unlikely]]
{
ppu_log.error("%s took too long: %u", sizeof(T) == 4 ? "LWARX" : "LDARX", count);
}
return static_cast<T>(ppu.rdata << data_off >> size_off);
}
else
{
_mm_pause();
count++;
}
}
ppu.rtime = vm::reservation_acquire(addr, sizeof(T));
if ((ppu.rtime & 127) == 0) [[likely]]