binary_instr_with_imm_carry.h

#pragma once
#include "libmicroemu/internal/decoder/decoder.h"
#include "libmicroemu/internal/executor/instr/post_exec.h"
#include "libmicroemu/internal/executor/instr_context.h"
#include "libmicroemu/internal/executor/instr_exec_results.h"
#include "libmicroemu/internal/result.h"
#include "libmicroemu/internal/utils/rarg.h"
#include "libmicroemu/register_details.h"
#include "libmicroemu/types.h"
 
namespace libmicroemu::internal {

template <typename TInstrContext> class Orr1ImmCarryOp {
public:
  template <typename TDest, typename TArg0>
  static Result<InstrExecFlagsSet> Call(const TInstrContext &ictx, const InstrFlagsSet &iflags,
                                        const TDest &rd, const TArg0 &rn,
                                        const ThumbImmediateResult &imm_carry) {
    auto apsr = ictx.cpua.template ReadSpecialRegister<SpecialRegisterId::kApsr>();
    const auto n = ictx.cpua.ReadRegister(rn.Get());
 
    const auto result = Alu32::OR(n, imm_carry.out);
    const auto op_res =
        OpResult{result, imm_carry.carry_out, (apsr & ApsrRegister::kVMsk) == ApsrRegister::kVMsk};
 
    PostExecWriteRegPcExcluded::Call(ictx, rd, op_res.value);
    PostExecOptionalSetFlags::Call(ictx, iflags, op_res);
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};

template <typename TInstrContext> class Eor1ImmCarryOp {
public:
  template <typename TDest, typename TArg0>
  static Result<InstrExecFlagsSet> Call(const TInstrContext &ictx, const InstrFlagsSet &iflags,
                                        const TDest &rd, const TArg0 &rn,
                                        const ThumbImmediateResult &imm_carry) {
    auto apsr = ictx.cpua.template ReadSpecialRegister<SpecialRegisterId::kApsr>();
    const auto n = ictx.cpua.ReadRegister(rn.Get());
    const auto result = Alu32::EOR(n, imm_carry.out);
    const auto op_res =
        OpResult{result, imm_carry.carry_out, (apsr & ApsrRegister::kVMsk) == ApsrRegister::kVMsk};
    PostExecWriteRegPcExcluded::Call(ictx, rd, op_res.value);
    PostExecOptionalSetFlags::Call(ictx, iflags, op_res);
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};

template <typename TInstrContext> class And1ImmCarryOp {
public:
  template <typename TDest, typename TArg0>
  static Result<InstrExecFlagsSet> Call(const TInstrContext &ictx, const InstrFlagsSet &iflags,
                                        const TDest &rd, const TArg0 &rn,
                                        const ThumbImmediateResult &imm_carry) {
    auto apsr = ictx.cpua.template ReadSpecialRegister<SpecialRegisterId::kApsr>();
    const auto n = ictx.cpua.ReadRegister(rn.Get());
    const auto result = Alu32::AND(n, imm_carry.out);
    const auto op_res =
        OpResult{result, imm_carry.carry_out, (apsr & ApsrRegister::kVMsk) == ApsrRegister::kVMsk};
    PostExecWriteRegPcExcluded::Call(ictx, rd, op_res.value);
    PostExecOptionalSetFlags::Call(ictx, iflags, op_res);
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};

template <typename TInstrContext> class Bic1ImmCarryOp {
public:
  template <typename TDest, typename TArg0>
  static Result<InstrExecFlagsSet> Call(const TInstrContext &ictx, const InstrFlagsSet &iflags,
                                        const TDest &rd, const TArg0 &rn,
                                        const ThumbImmediateResult &imm_carry) {
    auto apsr = ictx.cpua.template ReadSpecialRegister<SpecialRegisterId::kApsr>();
    const auto n = ictx.cpua.ReadRegister(rn.Get());
    const auto result = Alu32::AND(n, ~imm_carry.out);
    const auto op_res =
        OpResult{result, imm_carry.carry_out, (apsr & ApsrRegister::kVMsk) == ApsrRegister::kVMsk};
    PostExecWriteRegPcExcluded::Call(ictx, rd, op_res.value);
    PostExecOptionalSetFlags::Call(ictx, iflags, op_res);
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};
 
template <typename TOp, typename TInstrContext> class BinaryInstrWithImmCarry {
public:
  using It = typename TInstrContext::It;
  using Pc = typename TInstrContext::Pc;
 
  template <typename TDest, typename TArg0>
  static Result<InstrExecResult> Call(TInstrContext &ictx, const InstrFlagsSet &iflags,
                                      const TDest &rd, const TArg0 &rn,
                                      const ThumbImmediateResult &imm_carry) {
    TRY_ASSIGN(condition_passed, InstrExecResult, It::ConditionPassed(ictx.cpua));
    if (!condition_passed) {
      PostExecAdvancePcAndIt::Call(ictx, iflags);
      return Ok(InstrExecResult{kNoInstrExecFlags});
    }
 
    TRY_ASSIGN(eflags, InstrExecResult, TOp::Call(ictx, iflags, rd, rn, imm_carry));
    return Ok(InstrExecResult{eflags});
  }
 
private:
  BinaryInstrWithImmCarry() = delete;

  ~BinaryInstrWithImmCarry() = delete;

  BinaryInstrWithImmCarry(const BinaryInstrWithImmCarry &r_src) = delete;

  BinaryInstrWithImmCarry &operator=(const BinaryInstrWithImmCarry &r_src) = delete;

  BinaryInstrWithImmCarry(BinaryInstrWithImmCarry &&r_src) = delete;

  BinaryInstrWithImmCarry &operator=(BinaryInstrWithImmCarry &&r_src) = delete;
};
 
} // namespace libmicroemu::internal