File instr_formosa.h

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#pragma once

#include <cstdint>

#include "sm/instr.h"
#include "sm/warp.h"

namespace simtix {

class InstrFormosa : public Instr {
 public:
  using Op = void (InstrFormosa::*)();

  // Implementation of Instr's virtual methods
  void Decode() override;

  void Issue() override;

  void OperandCollect() override;

  void Execute() override;

  void Commit() override;

  void Reset() override;

  void Assign(const Instr* other) override;

  bool CanIssue() const override;

  bool CanExecute() const override { return true; }

  bool CanCommit() const override { return true; }

  bool CanRetire() const override { return committed_; }

  bool may_change_ctrl_flow() const override { return may_change_ctrl_flow_; }
  bool barrier_valid() const override { return barrier_valid_; }

 protected:
  // Protected constructor
  InstrFormosa(Warp* warp, uint32_t iword, uint64_t wpc);

  // Operation
  Op op_ = nullptr;

  bool committed_ = false;

 private:
  // Operations defined in this Opcode
  void fsa_pri_raise_() {
    for (Thread* t : active_threads_) {
      t->RaisePriority();
    }
  }

  void fsa_pri_lower_() {
    for (Thread* t : active_threads_) {
      t->LowerPriority();
    }
  }

  void fsa_pri_reset_() {
    for (Thread* t : active_threads_) {
      t->ResetPriority();
    }
  }

  void fsa_pri_set_() {
    for (Thread* t : active_threads_) {
      t->SetPriority(set_priority_);
    }
  }

  void fsa_pri_raise_f_() {
    for (Thread* t : active_threads_) {
      t->RaiseFunctPriority();
    }
  }

  void fsa_pri_lower_f_() {
    for (Thread* t : active_threads_) {
      t->LowerFunctPriority();
    }
  }

  void fsa_bar_() {
    warp_->set_bid(bid_);
    warp_->set_wc(bar_wc_);
  }

  void nop_() {}

  // Make InstrPool friend so that they can call our protected constructor
  template <class InstrType>
  friend class InstrPool;

  bool barrier_valid_ = false;
  bool may_change_ctrl_flow_ = false;
  uint8_t bar_wc_ = 0;
  uint8_t bid_ = 0;
  uint32_t set_priority_ = 0;
};

}  // namespace simtix