// Copyright 2025 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.

#include "riscv/riscv32g.bin_fmt"
#include "riscv/riscv_vector.bin_fmt"

decoder ZVBB {
  namespace mpact::sim::riscv::zvbb;
  opcode_enum = "OpcodeEnum";
  includes {
    #include "riscv/zvbb_decoder.h"
  }
  RiscVZvbbInst32 = { RiscVZvkbInst32, RiscVBasicBitInst32 };
}

instruction group RiscVZvkbInst32[32] : VArith {
  vandn_vv : VArith : func6 == 0b000'001, func3 == 0b000, opcode == 0b101'0111;
  vandn_vx : VArith : func6 == 0b000'001, func3 == 0b100, opcode == 0b101'0111;
  vbrev8_v : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'000;
  vrev8_v  : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'001;
  vrol_vv  : VArith : func6 == 0b010'101, func3 == 0b000, opcode == 0b101'0111;
  vrol_vx  : VArith : func6 == 0b010'101, func3 == 0b100, opcode == 0b101'0111;
  vror_vv  : VArith : func6 == 0b010'100, func3 == 0b000, opcode == 0b101'0111;
  vror_vx  : VArith : func6 == 0b010'100, func3 == 0b100, opcode == 0b101'0111;
  vror_vi  : VArith : func5 == 0b01010, func3 == 0b011, opcode == 0b101'0111;
}

instruction group RiscVBasicBitInst32[32] : VArith {
  vbrev_v : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'010;
  vclz_v  : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'100;
  vctz_v  : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'101;
  vcpop_v : VArith : func6 == 0b010'010, func3 == 0b010, opcode == 0b101'0111, vs1 == 0b01'110;
  vwsll_vv : VArith : func6 == 0b110'101, func3 == 0b000, opcode == 0b101'0111;
  vwsll_vx : VArith : func6 == 0b110'101, func3 == 0b100, opcode == 0b101'0111;
  vwsll_vi : VArith : func6 == 0b110'101, func3 == 0b011, opcode == 0b101'0111;
}