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CPU: Add trace log to file support

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This commit is contained in:
Connor McLaughlin 2019-11-04 00:55:07 +10:00
parent 9de9cf3be2
commit 4a6f283484
3 changed files with 49 additions and 0 deletions
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6
src/core/bus.cpp
View file

@ -376,7 +376,13 @@ void Bus::DoWriteEXP2(MemoryAccessSize size, u32 offset, u32 value)
if (value == '\n') if (value == '\n')
{ {
if (!m_tty_line_buffer.IsEmpty()) if (!m_tty_line_buffer.IsEmpty())
{
Log_InfoPrintf("TTY: %s", m_tty_line_buffer.GetCharArray()); Log_InfoPrintf("TTY: %s", m_tty_line_buffer.GetCharArray());
#ifdef _DEBUG
if (CPU::LOG_EXECUTION)
CPU::WriteToExecutionLog("TTY: %s\n", m_tty_line_buffer.GetCharArray());
#endif
}
m_tty_line_buffer.Clear(); m_tty_line_buffer.Clear();
} }
else else

38
src/core/cpu_core.cpp
View file

@ -6,7 +6,33 @@
Log_SetChannel(CPU::Core); Log_SetChannel(CPU::Core);
namespace CPU { namespace CPU {
bool TRACE_EXECUTION = false; bool TRACE_EXECUTION = false;
bool LOG_EXECUTION = false;
void WriteToExecutionLog(const char* format, ...)
{
static std::FILE* log_file = nullptr;
static bool log_file_opened = false;
std::va_list ap;
va_start(ap, format);
if (!log_file_opened)
{
log_file = std::fopen("cpu_log.txt", "wb");
log_file_opened = true;
}
if (log_file)
{
std::vfprintf(log_file, format, ap);
std::fflush(log_file);
}
va_end(ap);
}
Core::Core() = default; Core::Core() = default;
@ -495,6 +521,14 @@ static void PrintInstruction(u32 bits, u32 pc, Core* state)
std::printf("%08x: %08x %s\n", pc, bits, instr.GetCharArray()); std::printf("%08x: %08x %s\n", pc, bits, instr.GetCharArray());
} }
static void LogInstruction(u32 bits, u32 pc, Core* state)
{
TinyString instr;
DisassembleInstruction(&instr, pc, bits, state);
WriteToExecutionLog("%08x: %08x %s\n", pc, bits, instr.GetCharArray());
}
static constexpr bool AddOverflow(u32 old_value, u32 add_value, u32 new_value) static constexpr bool AddOverflow(u32 old_value, u32 add_value, u32 new_value)
{ {
return (((new_value ^ old_value) & (new_value ^ add_value)) & UINT32_C(0x80000000)) != 0; return (((new_value ^ old_value) & (new_value ^ add_value)) & UINT32_C(0x80000000)) != 0;
@ -596,8 +630,12 @@ void Core::ExecuteInstruction()
} }
#endif #endif
#ifdef _DEBUG
if (TRACE_EXECUTION) if (TRACE_EXECUTION)
PrintInstruction(inst.bits, m_current_instruction_pc, this); PrintInstruction(inst.bits, m_current_instruction_pc, this);
if (LOG_EXECUTION)
LogInstruction(inst.bits, m_current_instruction_pc, this);
#endif
switch (inst.op) switch (inst.op)
{ {

5
src/core/cpu_core.h
View file

@ -88,6 +88,7 @@ private:
} }
void DisassembleAndPrint(u32 addr); void DisassembleAndPrint(u32 addr);
void DisassembleAndLog(u32 addr);
void DisassembleAndPrint(u32 addr, u32 instructions_before, u32 instructions_after); void DisassembleAndPrint(u32 addr, u32 instructions_before, u32 instructions_after);
// Fetches the instruction at m_regs.npc // Fetches the instruction at m_regs.npc
@ -156,6 +157,10 @@ private:
}; };
extern bool TRACE_EXECUTION; extern bool TRACE_EXECUTION;
extern bool LOG_EXECUTION;
// Write to CPU execution log file.
void WriteToExecutionLog(const char* format, ...);
} // namespace CPU } // namespace CPU