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updated how we call ARM core to make things much faster

This commit is contained in:
bunnei 2014-05-17 11:59:18 -04:00
parent a4fd257469
commit 265c770a9d
8 changed files with 44 additions and 30 deletions

View File

@ -18,26 +18,24 @@
int __cdecl main(int argc, char **argv) { int __cdecl main(int argc, char **argv) {
std::string program_dir = File::GetCurrentDir(); std::string program_dir = File::GetCurrentDir();
LogManager::Init(); LogManager::Init();
EmuWindow_GLFW* emu_window = new EmuWindow_GLFW; EmuWindow_GLFW* emu_window = new EmuWindow_GLFW;
System::Init(emu_window); System::Init(emu_window);
std::string boot_filename = "homebrew.elf"; std::string boot_filename = "homebrew.elf";
std::string error_str; std::string error_str;
bool res = Loader::LoadFile(boot_filename, &error_str); bool res = Loader::LoadFile(boot_filename, &error_str);
if (!res) { if (!res) {
ERROR_LOG(BOOT, "Failed to load ROM: %s", error_str.c_str()); ERROR_LOG(BOOT, "Failed to load ROM: %s", error_str.c_str());
} }
for (;;) { Core::RunLoop();
Core::SingleStep();
}
delete emu_window; delete emu_window;
return 0; return 0;
} }

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@ -6,6 +6,8 @@
#include "core/core.h" #include "core/core.h"
#include "core/loader.h" #include "core/loader.h"
#include "core/hw/hw.h"
#include "video_core/video_core.h" #include "video_core/video_core.h"
#include "version.h" #include "version.h"
@ -40,6 +42,7 @@ void EmuThread::run()
emit CPUStepped(); emit CPUStepped();
} }
} }
HW::Update();
} }
Core::Stop(); Core::Stop();

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@ -17,12 +17,20 @@ public:
~ARM_Interface() { ~ARM_Interface() {
} }
/**
* Runs the CPU for the given number of instructions
* @param num_instructions Number of instructions to run
*/
void Run(int num_instructions) {
ExecuteInstructions(num_instructions);
m_num_instructions += num_instructions;
}
/// Step CPU by one instruction /// Step CPU by one instruction
void Step() { void Step() {
ExecuteInstruction(); Run(1);
m_num_instructions++;
} }
/** /**
* Set the Program Counter to an address * Set the Program Counter to an address
* @param addr Address to set PC to * @param addr Address to set PC to
@ -68,8 +76,11 @@ public:
protected: protected:
/// Execture next instruction /**
virtual void ExecuteInstruction() = 0; * Executes the given number of instructions
* @param num_instructions Number of instructions to executes
*/
virtual void ExecuteInstructions(int num_instructions) = 0;
private: private:

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@ -85,16 +85,11 @@ u64 ARM_Interpreter::GetTicks() const {
return ARMul_Time(m_state); return ARMul_Time(m_state);
} }
/// Execture next instruction /**
void ARM_Interpreter::ExecuteInstruction() { * Executes the given number of instructions
m_state->step++; * @param num_instructions Number of instructions to executes
m_state->cycle++; */
m_state->EndCondition = 0; void ARM_Interpreter::ExecuteInstructions(int num_instructions) {
m_state->stop_simulator = 0; m_state->NumInstrsToExecute = num_instructions;
m_state->NextInstr = RESUME; ARMul_Emulate32(m_state);
m_state->last_pc = m_state->Reg[15];
m_state->Reg[15] = ARMul_DoInstr(m_state);
m_state->Cpsr = ((m_state->Cpsr & 0x0fffffdf) | (m_state->NFlag << 31) | (m_state->ZFlag << 30) |
(m_state->CFlag << 29) | (m_state->VFlag << 28) | (m_state->TFlag << 5));
m_state->NextInstr |= PRIMEPIPE; // Flush pipe
} }

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@ -56,8 +56,11 @@ public:
protected: protected:
/// Execture next instruction /**
void ExecuteInstruction(); * Executes the given number of instructions
* @param num_instructions Number of instructions to executes
*/
void ExecuteInstructions(int num_instructions);
private: private:

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@ -288,6 +288,7 @@ struct ARMul_State
ARMword loaded_addr, decoded_addr; /* saved pipeline state addr*/ ARMword loaded_addr, decoded_addr; /* saved pipeline state addr*/
unsigned int NumScycles, NumNcycles, NumIcycles, NumCcycles, NumFcycles; /* emulated cycles used */ unsigned int NumScycles, NumNcycles, NumIcycles, NumCcycles, NumFcycles; /* emulated cycles used */
unsigned long long NumInstrs; /* the number of instructions executed */ unsigned long long NumInstrs; /* the number of instructions executed */
unsigned NumInstrsToExecute;
unsigned NextInstr; unsigned NextInstr;
unsigned VectorCatch; /* caught exception mask */ unsigned VectorCatch; /* caught exception mask */
unsigned CallDebug; /* set to call the debugger */ unsigned CallDebug; /* set to call the debugger */

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@ -4734,7 +4734,7 @@ TEST_EMULATE:
else if (state->Emulate != RUN) else if (state->Emulate != RUN)
break; break;
} }
while (!state->stop_simulator); while (state->NumInstrsToExecute--);
state->decoded = decoded; state->decoded = decoded;
state->loaded = loaded; state->loaded = loaded;

View File

@ -4,8 +4,9 @@
#include "common/common_types.h" #include "common/common_types.h"
#include "common/log.h" #include "common/log.h"
#include "core/core.h" #include "common/symbols.h"
#include "core/core.h"
#include "core/mem_map.h" #include "core/mem_map.h"
#include "core/hw/hw.h" #include "core/hw/hw.h"
#include "core/arm/disassembler/arm_disasm.h" #include "core/arm/disassembler/arm_disasm.h"
@ -19,13 +20,15 @@ ARM_Interface* g_sys_core = NULL; ///< ARM11 system (OS) core
/// Run the core CPU loop /// Run the core CPU loop
void RunLoop() { void RunLoop() {
// TODO(ShizZy): ImplementMe for (;;){
g_app_core->Run(10000);
HW::Update();
}
} }
/// Step the CPU one instruction /// Step the CPU one instruction
void SingleStep() { void SingleStep() {
g_app_core->Step(); g_app_core->Step();
HW::Update();
} }
/// Halt the core /// Halt the core