dolphin/Source/Core/Core/Debugger/PPCDebugInterface.cpp

// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#include <string>

#include "Common/GekkoDisassembler.h"

#include "Core/Core.h"
#include "Core/Debugger/Debugger_SymbolMap.h"
#include "Core/Debugger/PPCDebugInterface.h"
#include "Core/HW/DSP.h"
#include "Core/HW/Memmap.h"
#include "Core/Host.h"
#include "Core/PowerPC/JitCommon/JitBase.h"
#include "Core/PowerPC/PPCSymbolDB.h"
#include "Core/PowerPC/PowerPC.h"

std::string PPCDebugInterface::Disassemble(unsigned int address)
{
  // PowerPC::HostRead_U32 seemed to crash on shutdown
  if (!IsAlive())
    return "";

  if (Core::GetState() == Core::CORE_PAUSE)
  {
    if (!PowerPC::HostIsRAMAddress(address))
    {
      return "(No RAM here)";
    }

    u32 op = PowerPC::HostRead_Instruction(address);
    std::string disasm = GekkoDisassembler::Disassemble(op, address);

    UGeckoInstruction inst;
    inst.hex = PowerPC::HostRead_U32(address);

    if (inst.OPCD == 1)
    {
      disasm += " (hle)";
    }

    return disasm;
  }
  else
  {
    return "<unknown>";
  }
}

void PPCDebugInterface::GetRawMemoryString(int memory, unsigned int address, char* dest,
                                           int max_size)
{
  if (IsAlive())
  {
    if (memory || PowerPC::HostIsRAMAddress(address))
    {
      snprintf(dest, max_size, "%08X%s", ReadExtraMemory(memory, address), memory ? " (ARAM)" : "");
    }
    else
    {
      strcpy(dest, memory ? "--ARAM--" : "--------");
    }
  }
  else
  {
    strcpy(dest, "<unknwn>");  // bad spelling - 8 chars
  }
}

unsigned int PPCDebugInterface::ReadMemory(unsigned int address)
{
  return PowerPC::HostRead_U32(address);
}

unsigned int PPCDebugInterface::ReadExtraMemory(int memory, unsigned int address)
{
  switch (memory)
  {
  case 0:
    return PowerPC::HostRead_U32(address);
  case 1:
    return (DSP::ReadARAM(address) << 24) | (DSP::ReadARAM(address + 1) << 16) |
           (DSP::ReadARAM(address + 2) << 8) | (DSP::ReadARAM(address + 3));
  default:
    return 0;
  }
}

unsigned int PPCDebugInterface::ReadInstruction(unsigned int address)
{
  return PowerPC::HostRead_Instruction(address);
}

bool PPCDebugInterface::IsAlive()
{
  return Core::IsRunning();
}

bool PPCDebugInterface::IsBreakpoint(unsigned int address)
{
  return PowerPC::breakpoints.IsAddressBreakPoint(address);
}

void PPCDebugInterface::SetBreakpoint(unsigned int address)
{
  PowerPC::breakpoints.Add(address);
}

void PPCDebugInterface::ClearBreakpoint(unsigned int address)
{
  PowerPC::breakpoints.Remove(address);
}

void PPCDebugInterface::ClearAllBreakpoints()
{
  PowerPC::breakpoints.Clear();
}

void PPCDebugInterface::ToggleBreakpoint(unsigned int address)
{
  if (PowerPC::breakpoints.IsAddressBreakPoint(address))
    PowerPC::breakpoints.Remove(address);
  else
    PowerPC::breakpoints.Add(address);
}

void PPCDebugInterface::AddWatch(unsigned int address)
{
  PowerPC::watches.Add(address);
}

void PPCDebugInterface::ClearAllMemChecks()
{
  PowerPC::memchecks.Clear();
}

bool PPCDebugInterface::IsMemCheck(unsigned int address)
{
  return (PowerPC::memchecks.HasAny() && PowerPC::memchecks.GetMemCheck(address));
}

void PPCDebugInterface::ToggleMemCheck(unsigned int address)
{
  if (PowerPC::memchecks.HasAny() && !PowerPC::memchecks.GetMemCheck(address))
  {
    // Add Memory Check
    TMemCheck MemCheck;
    MemCheck.StartAddress = address;
    MemCheck.EndAddress = address;
    MemCheck.OnRead = true;
    MemCheck.OnWrite = true;

    MemCheck.Log = true;
    MemCheck.Break = true;

    PowerPC::memchecks.Add(MemCheck);
  }
  else
    PowerPC::memchecks.Remove(address);
}

void PPCDebugInterface::InsertBLR(unsigned int address, unsigned int value)
{
  PowerPC::HostWrite_U32(value, address);
  PowerPC::ScheduleInvalidateCacheThreadSafe(address);
}

// =======================================================
// Separate the blocks with colors.
// -------------
int PPCDebugInterface::GetColor(unsigned int address)
{
  if (!IsAlive())
    return 0xFFFFFF;
  if (!PowerPC::HostIsRAMAddress(address))
    return 0xeeeeee;
  static const int colors[6] = {
      0xd0FFFF,  // light cyan
      0xFFd0d0,  // light red
      0xd8d8FF,  // light blue
      0xFFd0FF,  // light purple
      0xd0FFd0,  // light green
      0xFFFFd0,  // light yellow
  };
  Symbol* symbol = g_symbolDB.GetSymbolFromAddr(address);
  if (!symbol)
    return 0xFFFFFF;
  if (symbol->type != Symbol::SYMBOL_FUNCTION)
    return 0xEEEEFF;
  return colors[symbol->index % 6];
}
// =============

std::string PPCDebugInterface::GetDescription(unsigned int address)
{
  return g_symbolDB.GetDescription(address);
}

unsigned int PPCDebugInterface::GetPC()
{
  return PowerPC::ppcState.pc;
}

void PPCDebugInterface::SetPC(unsigned int address)
{
  PowerPC::ppcState.pc = address;
}

void PPCDebugInterface::RunToBreakpoint()
{
}