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

@ -33,9 +33,7 @@ int __cdecl main(int argc, char **argv) {
ERROR_LOG(BOOT, "Failed to load ROM: %s", error_str.c_str());
}
for (;;) {
Core::SingleStep();
}
Core::RunLoop();
delete emu_window;

View file

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

View file

@ -17,10 +17,18 @@ public:
~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
void Step() {
ExecuteInstruction();
m_num_instructions++;
Run(1);
}
/**
@ -68,8 +76,11 @@ public:
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:

View file

@ -85,16 +85,11 @@ u64 ARM_Interpreter::GetTicks() const {
return ARMul_Time(m_state);
}
/// Execture next instruction
void ARM_Interpreter::ExecuteInstruction() {
m_state->step++;
m_state->cycle++;
m_state->EndCondition = 0;
m_state->stop_simulator = 0;
m_state->NextInstr = RESUME;
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
/**
* Executes the given number of instructions
* @param num_instructions Number of instructions to executes
*/
void ARM_Interpreter::ExecuteInstructions(int num_instructions) {
m_state->NumInstrsToExecute = num_instructions;
ARMul_Emulate32(m_state);
}

View file

@ -56,8 +56,11 @@ public:
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:

View file

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

View file

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

View file

@ -4,8 +4,9 @@
#include "common/common_types.h"
#include "common/log.h"
#include "core/core.h"
#include "common/symbols.h"
#include "core/core.h"
#include "core/mem_map.h"
#include "core/hw/hw.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
void RunLoop() {
// TODO(ShizZy): ImplementMe
for (;;){
g_app_core->Run(10000);
HW::Update();
}
}
/// Step the CPU one instruction
void SingleStep() {
g_app_core->Step();
HW::Update();
}
/// Halt the core