nullary_instr.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 Nop0Op {
public:
  static Result<InstrExecFlagsSet> Call(TInstrContext &ictx, const InstrFlagsSet &iflags) {
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};

template <typename TInstrContext> class Dmb0Op {
public:
  static Result<InstrExecFlagsSet> Call(TInstrContext &ictx, const InstrFlagsSet &iflags) {
    PostExecAdvancePcAndIt::Call(ictx, iflags);
    return Ok(kNoInstrExecFlags);
  }
};
 
template <typename TOp, typename TInstrContext> class NullaryInstr {
public:
  using It = typename TInstrContext::It;
  using Pc = typename TInstrContext::Pc;
 
  static Result<InstrExecResult> Call(TInstrContext &ictx, const InstrFlagsSet &iflags) {
    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));
    return Ok(InstrExecResult{eflags});
  }
 
private:
  NullaryInstr() = delete;

  ~NullaryInstr() = delete;

  NullaryInstr(const NullaryInstr &r_src) = delete;

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

  NullaryInstr(NullaryInstr &&r_src) = delete;

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