riscv/riscv_zihintntl.bin_fmt

// 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
//
//     https://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.

// This file defines the non-temporal localicty hint instruction encodings.

instruction group RiscVZihintntl[32] : Inst32Format {
  ntl_p1  : RType : func7 == 0b000'0000, rs1 == 0, rs2 == 2, func3 == 0b000, rd == 0, opcode == 0b011'0011;
  ntl_pall: RType : func7 == 0b000'0000, rs1 == 0, rs2 == 3, func3 == 0b000, rd == 0, opcode == 0b011'0011;
  ntl_s1  : RType : func7 == 0b000'0000, rs1 == 0, rs2 == 4, func3 == 0b000, rd == 0, opcode == 0b011'0011;
  ntl_all : RType : func7 == 0b000'0000, rs1 == 0, rs2 == 5, func3 == 0b000, rd == 0, opcode == 0b011'0011;
};

instruction group RiscVCZihintntl[16] : Inst16Format {
  c_ntl_p1  : CR : func4 == 0b1001, rs1 == 0, rs2 == 2, op == 0b10;
  c_ntl_pall: CR : func4 == 0b1001, rs1 == 0, rs2 == 3, op == 0b10;
  c_ntl_s1  : CR : func4 == 0b1001, rs1 == 0, rs2 == 4, op == 0b10;
  c_ntl_all : CR : func4 == 0b1001, rs1 == 0, rs2 == 5, op == 0b10;
}