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fixed licensing and updated code style naming for arm_interface/arm_interpreter frontend module

This commit is contained in:
bunnei 2014-04-08 20:38:33 -04:00
parent ad4fffca0d
commit d0674cc98b
3 changed files with 57 additions and 94 deletions
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20
src/core/arm/arm_interface.h
View File

@ -11,7 +11,7 @@
class ARM_Interface {
public:
ARM_Interface() {
num_instructions_ = 0;
m_num_instructions = 0;
}
~ARM_Interface() {
@ -20,7 +20,7 @@ public:
/// Step CPU by one instruction
void Step() {
ExecuteInstruction();
num_instructions_++;
m_num_instructions++;
}
/**
@ -33,36 +33,38 @@ public:
* Get the current Program Counter
* @return Returns current PC
*/
virtual u32 PC() = 0;
virtual u32 GetPC() const = 0;
/**
* Get an ARM register
* @param index Register index (0-15)
* @return Returns the value in the register
*/
virtual u32 Reg(int index) = 0;
virtual u32 GetReg(int index) const = 0;
/**
* Get the current CPSR register
* @return Returns the value of the CPSR register
*/
virtual u32 CPSR() = 0;
virtual u32 GetCPSR() const = 0;
/**
* Returns the number of clock ticks since the last rese
* @return Returns number of clock ticks
*/
virtual u64 GetTicks() = 0;
virtual u64 GetTicks() const = 0;
/// Getter for num_instructions_
u64 num_instructions() { return num_instructions_; }
/// Getter for m_num_instructions
u64 GetNumInstructions() {
return m_num_instructions;
}
private:
/// Execture next instruction
virtual void ExecuteInstruction() = 0;
u64 num_instructions_; ///< Number of instructions executed
u64 m_num_instructions; ///< Number of instructions executed
DISALLOW_COPY_AND_ASSIGN(ARM_Interface);
};

93
src/core/arm/interpreter/arm_interpreter.cpp
View File

@ -1,26 +1,6 @@
/**
* Copyright (C) 2013 Citrus Emulator
*
* @file arm_interpreter.h
* @author bunnei
* @date 2014-04-04
* @brief ARM interface instance for SkyEye interprerer
*
* @section LICENSE
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details at
* http://www.gnu.org/copyleft/gpl.html
*
* Official project repository can be found at:
* http://code.google.com/p/gekko-gc-emu/
*/
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "arm_interpreter.h"
@ -29,58 +9,61 @@ const static cpu_config_t s_arm11_cpu_info = {
};
ARM_Interpreter::ARM_Interpreter() {
state = new ARMul_State;
m_state = new ARMul_State;
ARMul_EmulateInit();
ARMul_NewState(state);
ARMul_NewState(m_state);
state->abort_model = 0;
state->cpu = (cpu_config_t*)&s_arm11_cpu_info;
state->bigendSig = LOW;
m_state->abort_model = 0;
m_state->cpu = (cpu_config_t*)&s_arm11_cpu_info;
m_state->bigendSig = LOW;
ARMul_SelectProcessor(state, ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop);
state->lateabtSig = LOW;
mmu_init(state);
ARMul_SelectProcessor(m_state, ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop);
m_state->lateabtSig = LOW;
mmu_init(m_state);
// Reset the core to initial state
ARMul_Reset(state);
state->NextInstr = 0;
state->Emulate = 3;
ARMul_Reset(m_state);
m_state->NextInstr = 0;
m_state->Emulate = 3;
state->pc = state->Reg[15] = 0x00000000;
state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack
m_state->pc = m_state->Reg[15] = 0x00000000;
m_state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack
}
void ARM_Interpreter::SetPC(u32 pc) {
state->pc = state->Reg[15] = pc;
m_state->pc = m_state->Reg[15] = pc;
}
u32 ARM_Interpreter::PC() {
return state->pc;
u32 ARM_Interpreter::GetPC() const {
return m_state->pc;
}
u32 ARM_Interpreter::Reg(int index){
return state->Reg[index];
u32 ARM_Interpreter::GetReg(int index) const {
return m_state->Reg[index];
}
u32 ARM_Interpreter::CPSR() {
return state->Cpsr;
u32 ARM_Interpreter::GetCPSR() const {
return m_state->Cpsr;
}
u64 ARM_Interpreter::GetTicks() const {
return ARMul_Time(m_state);
}
ARM_Interpreter::~ARM_Interpreter() {
delete state;
delete m_state;
}
void ARM_Interpreter::ExecuteInstruction() {
state->step++;
state->cycle++;
state->EndCondition = 0;
state->stop_simulator = 0;
state->NextInstr = RESUME;
state->last_pc = state->Reg[15];
state->Reg[15] = ARMul_DoInstr(state);
state->Cpsr = ((state->Cpsr & 0x0fffffdf) | (state->NFlag << 31) | (state->ZFlag << 30) |
(state->CFlag << 29) | (state->VFlag << 28) | (state->TFlag << 5));
FLUSHPIPE;
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
}

38
src/core/arm/interpreter/arm_interpreter.h
View File

@ -1,26 +1,6 @@
/**
* Copyright (C) 2013 Citrus Emulator
*
* @file arm_interpreter.h
* @author bunnei
* @date 2014-04-04
* @brief ARM interface instance for SkyEye interprerer
*
* @section LICENSE
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details at
* http://www.gnu.org/copyleft/gpl.html
*
* Official project repository can be found at:
* http://code.google.com/p/gekko-gc-emu/
*/
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
@ -39,18 +19,16 @@ public:
void SetPC(u32 pc);
u32 PC();
u32 GetPC() const;
u32 Reg(int index);
u32 GetReg(int index) const;
u32 CPSR();
u32 GetCPSR() const;
u64 GetTicks() {
return ARMul_Time(state);
}
u64 GetTicks() const;
private:
ARMul_State* state;
ARMul_State* m_state;
DISALLOW_COPY_AND_ASSIGN(ARM_Interpreter);
};