cheriot/riscv_cheriot_a_instructions.h

/*
 * Copyright 2024 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef MPACT_CHERIOT__RISCV_CHERIOT_A_INSTRUCTIONS_H_
#define MPACT_CHERIOT__RISCV_CHERIOT_A_INSTRUCTIONS_H_

#include "mpact/sim/generic/instruction.h"

namespace mpact {
namespace sim {
namespace cheriot {

using ::mpact::sim::generic::Instruction;

// This file declares the set of semantic functions used in the A (or atomic)
// subset of the RiscV instruction set. The *w functions are used in the
// 32 bit version, and both *w and *d are used in the 64 bit version of RiscV.

// The following instruction takes 3 source operands and one destination
// operand. The first source is the register holding the address of the
// memory to access, the second is the acquire bit, and the third, the release
// bit. The instruction has a single destination operand which is the register
// to write the result to.
void ALrw(Instruction *instruction);
// The following instructions take 4 source operands and one destination
// operand. The first source is the register holding the address of the
// memory to access, the second is the register value used in the memory
// operation (to store, swap, etc), the third is the acquire bit, and the
// fourth, the release bit. The instruction has a single destination operand
// which is the register to write the result to.
void AScw(Instruction *instruction);
void AAmoswapw(Instruction *instruction);
void AAmoaddw(Instruction *instruction);
void AAmoandw(Instruction *instruction);
void AAmoorw(Instruction *instruction);
void AAmoxorw(Instruction *instruction);
void AAmomaxw(Instruction *instruction);
void AAmomaxuw(Instruction *instruction);
void AAmominw(Instruction *instruction);
void AAmominuw(Instruction *instruction);

}  // namespace cheriot
}  // namespace sim
}  // namespace mpact

#endif  // MPACT_CHERIOT__RISCV_CHERIOT_A_INSTRUCTIONS_H_