#ifndef PROCESSOR_LR35902_HPP
#define PROCESSOR_LR35902_HPP

namespace Processor {

//Sharp LR35902 (Game Boy Z80-derivative)

struct LR35902 {
  #include "registers.hpp"

  virtual void op_io() = 0;
  virtual uint8 op_read(uint16 addr) = 0;
  virtual void op_write(uint16 addr, uint8 data) = 0;
  virtual bool stop() = 0;
  virtual uint8 debugger_read(uint16 addr) { return 0u; }

  void power();
  void exec();
  void exec_cb();
  void serialize(serializer&);

privileged:
  void op_xx();
  void op_cb();

  //8-bit load commands
  template<unsigned x, unsigned y> void op_ld_r_r();
  template<unsigned x> void op_ld_r_n();
  template<unsigned x> void op_ld_r_hl();
  template<unsigned x> void op_ld_hl_r();
  void op_ld_hl_n();
  template<unsigned x> void op_ld_a_rr();
  void op_ld_a_nn();
  template<unsigned x> void op_ld_rr_a();
  void op_ld_nn_a();
  void op_ld_a_ffn();
  void op_ld_ffn_a();
  void op_ld_a_ffc();
  void op_ld_ffc_a();
  void op_ldi_hl_a();
  void op_ldi_a_hl();
  void op_ldd_hl_a();
  void op_ldd_a_hl();

  //16-bit load commands
  template<unsigned x> void op_ld_rr_nn();
  void op_ld_nn_sp();
  void op_ld_sp_hl();
  template<unsigned x> void op_push_rr();
  template<unsigned x> void op_pop_rr();

  //8-bit arithmetic commands
  void opi_add_a(uint8 x);
  template<unsigned x> void op_add_a_r();
  void op_add_a_n();
  void op_add_a_hl();

  void opi_adc_a(uint8 x);
  template<unsigned x> void op_adc_a_r();
  void op_adc_a_n();
  void op_adc_a_hl();

  void opi_sub_a(uint8 x);
  template<unsigned x> void op_sub_a_r();
  void op_sub_a_n();
  void op_sub_a_hl();

  void opi_sbc_a(uint8 x);
  template<unsigned x> void op_sbc_a_r();
  void op_sbc_a_n();
  void op_sbc_a_hl();

  void opi_and_a(uint8 x);
  template<unsigned x> void op_and_a_r();
  void op_and_a_n();
  void op_and_a_hl();

  void opi_xor_a(uint8 x);
  template<unsigned x> void op_xor_a_r();
  void op_xor_a_n();
  void op_xor_a_hl();

  void opi_or_a(uint8 x);
  template<unsigned x> void op_or_a_r();
  void op_or_a_n();
  void op_or_a_hl();

  void opi_cp_a(uint8 x);
  template<unsigned x> void op_cp_a_r();
  void op_cp_a_n();
  void op_cp_a_hl();

  template<unsigned x> void op_inc_r();
  void op_inc_hl();
  template<unsigned x> void op_dec_r();
  void op_dec_hl();
  void op_daa();
  void op_cpl();

  //16-bit arithmetic commands
  template<unsigned x> void op_add_hl_rr();
  template<unsigned x> void op_inc_rr();
  template<unsigned x> void op_dec_rr();
  void op_add_sp_n();
  void op_ld_hl_sp_n();

  //rotate/shift commands
  void op_rlca();
  void op_rla();
  void op_rrca();
  void op_rra();
  template<unsigned x> void op_rlc_r();
  void op_rlc_hl();
  template<unsigned x> void op_rl_r();
  void op_rl_hl();
  template<unsigned x> void op_rrc_r();
  void op_rrc_hl();
  template<unsigned x> void op_rr_r();
  void op_rr_hl();
  template<unsigned x> void op_sla_r();
  void op_sla_hl();
  template<unsigned x> void op_swap_r();
  void op_swap_hl();
  template<unsigned x> void op_sra_r();
  void op_sra_hl();
  template<unsigned x> void op_srl_r();
  void op_srl_hl();

  //single-bit commands
  template<unsigned b, unsigned x> void op_bit_n_r();
  template<unsigned b> void op_bit_n_hl();
  template<unsigned b, unsigned x> void op_set_n_r();
  template<unsigned b> void op_set_n_hl();
  template<unsigned b, unsigned x> void op_res_n_r();
  template<unsigned b> void op_res_n_hl();

  //control commands
  void op_ccf();
  void op_scf();
  void op_nop();
  void op_halt();
  void op_stop();
  void op_di();
  void op_ei();

  //jump commands
  void op_jp_nn();
  void op_jp_hl();
  template<unsigned x, bool y> void op_jp_f_nn();
  void op_jr_n();
  template<unsigned x, bool y> void op_jr_f_n();
  void op_call_nn();
  template<unsigned x, bool y> void op_call_f_nn();
  void op_ret();
  template<unsigned x, bool y> void op_ret_f();
  void op_reti();
  template<unsigned n> void op_rst_n();

  //disassembler.cpp
  string disassemble(uint16 pc);
  string disassemble_opcode(uint16 pc);
  string disassemble_opcode_cb(uint16 pc);
};

}

#endif