processor.cpp

来自「浙江大学的悟空嵌入式系统模拟器」· C++ 代码 · 共 44 行

#include "./stdafx.h"
#include "./Processor.h"
#include "./Instruction.h"

#include <Core/Memory.h>

namespace MU0 {

	CPU::CPU(Instruction_Set & instr_set, Core::MMU<Core::u16> * mmu) 
		: Core::CPU_16Bit(instr_set, mmu)
	{
		set_pc((Core::u16)0);
	}

	Core::Instruction_Unit CPU::fetch_instruction(Core::u16 pc)
	{
		Core::u16 res;
		Core::Bytecode_Type buffer;
		get_mmu().access(Core::Memory_16Bit::MEMORY_READ, (Core::u16)pc, 2, buffer);
		set_pc((Core::u16)(pc + 2));
		Core::Wukong_Get_System().convert_from_bytecode(buffer, res);
		return (Core::Instruction_Unit)res;
	}

	CPU::~CPU(void)
	{
	}

	void CPU::on_create(void)
	{
		Core::Processor::Config config;
		config.name = "MU0";
		config.family = "MU0_FAMILY";
		Core::Register_File::append_profile(config.register_config, "ACC", Core::Register_File::REGISTER_16BIT);
		configurate(config);
	}

	void CPU::on_reset(void)
	{
		set_pc((Core::u16)0);
	}

} //namespace