riscv/riscv_zvbb.isa

// 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.

// This file contains the ISA description of the RiscV zvbb extention
// instructions.

isa ZVBB {
  namespace mpact::sim::riscv::zvbb;
  slots {
    riscv_zvbb;
  }
}

// First disasm field is 18 char wide and left justified.
disasm widths = {-18};

#include "riscv_vector.isa"

slot riscv_zvkb {
  includes {
    #include "riscv/riscv_vector_basic_bit_manipulation_instructions.h"
  }
  default size = 4;
  default latency = 0;
  default opcode =
    disasm: "Unimplemented instruction at 0x%(@:08x)",
    semfunc: "&RV32VUnimplementedInstruction";
  opcodes {
    vandn_vv{: vs2, vs1, vmask : vd},
      disasm: "vandn.vv", "%vd, %vs2, %vs1, %vmask",
      semfunc: "&Vandn";
    vandn_vx{: vs2, rs1, vmask : vd},
      disasm: "vandn.vx", "%vd, %vs2, %rs1, %vmask",
      semfunc: "&Vandn";
    vbrev8_v{: vs2, vmask : vd},
      disasm: "vbrev8.v", "%vd, %vs2, %vmask",
      semfunc: "&Vbrev8";
    vrev8_v{: vs2, vmask : vd},
      disasm: "vrev8.v", "%vd, %vs2, %vmask",
      semfunc: "&Vrev8";
    vrol_vv{: vs2, vs1, vmask : vd},
      disasm: "vrol.vv", "%vd, %vs2, %vs1, %vmask",
      semfunc: "&Vrol";
    vrol_vx{: vs2, rs1, vmask : vd},
      disasm: "vrol.vx", "%vd, %vs2, %rs1, %vmask",
      semfunc: "&Vrol";
    vror_vv{: vs2, vs1, vmask : vd},
      disasm: "vror.vv", "%vd, %vs2, %vs1, %vmask",
      semfunc: "&Vror";
    vror_vx{: vs2, rs1, vmask : vd},
      disasm: "vror.vx", "%vd, %vs2, %rs1, %vmask",
      semfunc: "&Vror";
    vror_vi{: vs2, uimm6, vmask : vd},
      disasm: "vror.vi", "%vd, %vs2, %uimm6, %vmask",
      semfunc: "&Vror";
  }
}

slot riscv_zvbb : riscv_zvkb {
  includes {
    #include "riscv/riscv_vector_basic_bit_manipulation_instructions.h"
  }
  default size = 4;
  default latency = 0;
  default opcode =
    disasm: "Unimplemented instruction at 0x%(@:08x)",
    semfunc: "&RV32VUnimplementedInstruction";
  opcodes {
    vbrev_v{: vs2, vmask : vd},
      disasm: "vbrev.v", "%vd, %vs2, %vmask",
      semfunc: "&Vbrev";
    vclz_v{: vs2, vmask : vd},
      disasm: "vclz.v", "%vd, %vs2, %vmask",
      semfunc: "&Vclz";
    vctz_v{: vs2, vmask : vd},
      disasm: "vctz.v", "%vd, %vs2, %vmask",
      semfunc: "&Vctz";
    vcpop_v{: vs2, vmask : vd},
      disasm: "vcpop.v", "%vd, %vs2, %vmask",
      semfunc: "&VectorVcpop";
    vwsll_vv{: vs2, vs1, vmask : vd},
      disasm: "vwsll.vv", "%vd, %vs2, %vs1, %vmask",
      semfunc: "&Vwsll";
    vwsll_vx{: vs2, rs1, vmask : vd},
      disasm: "vwsll.vx", "%vd, %vs2, %rs1, %vmask",
      semfunc: "&Vwsll";
    vwsll_vi{: vs2, uimm5, vmask : vd},
      disasm: "vwsll.vi", "%vd, %vs2, %uimm5, %vmask",
      semfunc: "&Vwsll";
  }
}