cheriot/riscv_cheriot_f.isa

// 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.


// RiscV32 F (single precision floating point) instructions.
slot riscv_cheriot_f {
  includes {
    #include "cheriot/riscv_cheriot_f_instructions.h"
  }
  default size = 4;
  default latency = global_latency;
  resources TwoOp = { next_pc, frs1 : frd[0..]};
  resources ThreeOp = { next_pc, frs1, frs2 : frd[0..]};
  resources FourOp = { next_pc, frs1, frs2, frs3 : frd[0..]};
  opcodes {
    flw{(: rs1, I_imm12 : ), (: : frd)},
      resources: { next_pc, rs1 : frd[0..]},
      semfunc: "&RiscVILw", "&RiscVIFlwChild",
      disasm: "flw", "%frd, %I_imm12(%rs1)";
    fsw{: rs1, S_imm12, frs2},
      resources: { next_pc, rs1, frs2},
      semfunc: "&RV32::RiscVFSw",
      disasm: "fsw", "%frs2, %S_imm12(%rs1)";
    fadd_s{: frs1, frs2, rm : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFAdd",
      disasm: "fadd", "%frd, %frs1, %frs2";
    fsub_s{: frs1, frs2, rm : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFSub",
      disasm: "fsub", "%frd, %frs1, %frs2";
    fmul_s{: frs1, frs2, rm : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFMul",
      disasm: "fmul", "%frd, %frs1, %frs2";
    fdiv_s{: frs1, frs2, rm : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFDiv",
      disasm: "fdiv", "%frd, %frs1, %frs2";
    fsqrt_s{: frs1, rm : frd},
      resources: TwoOp,
      semfunc: "&RiscVFSqrt",
      disasm: "fsqrt", "%frd, %frs1";
    fmin_s{: frs1, frs2 : frd, fflags},
      resources: ThreeOp,
      semfunc: "&RiscVFMin",
      disasm: "fmin", "%frd, %frs1, %frs2";
    fmax_s{: frs1, frs2 : frd, fflags},
      resources: ThreeOp,
      semfunc: "&RiscVFMax",
      disasm: "fmax", "%frd, %frs1, %frs2";
    fmadd_s{: frs1, frs2, frs3, rm : frd, fflags},
      resources: FourOp,
      semfunc: "&RiscVFMadd",
      disasm: "fmadd", "%frd, %frs1, %frs2, %frs3";
    fmsub_s{: frs1, frs2, frs3, rm : frd, fflags},
      resources: FourOp,
      semfunc: "&RiscVFMsub",
      disasm: "fmsub", "%frd, %frs1, %frs2, %frs3";
    fnmadd_s{: frs1, frs2, frs3, rm : frd, fflags},
      resources: FourOp,
      semfunc: "&RiscVFNmadd",
      disasm: "fnmadd", "%frd, %frs1, %frs2, %frs3";
    fnmsub_s{: frs1, frs2, frs3, rm : frd, fflags},
      resources: FourOp,
      semfunc: "&RiscVFNmsub",
      disasm: "fnmsub", "%frd, %frs1, %frs2, %frs3";
    fcvt_ws{: frs1, rm : rd, fflags},
      resources: TwoOp,
      semfunc: "&RV32::RiscVFCvtWs",
      disasm: "fcvt.w.s", "%rd, %frs1";
    fcvt_sw{: rs1, rm : frd},
      resources: TwoOp,
      semfunc: "&RiscVFCvtSw",
      disasm: "fcvt.s.w", "%frd, %rs1";
    fcvt_wus{: frs1, rm : rd, fflags},
      resources: TwoOp,
      semfunc: "&RV32::RiscVFCvtWus",
      disasm: "fcvt.wu.s", "%rd, %frs1";
    fcvt_swu{: rs1, rm : frd},
      resources: TwoOp,
      semfunc: "&RiscVFCvtSwu",
      disasm: "fcvt.s.wu", "%frd, %rs1";
    fsgnj_s{: frs1, frs2 : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFSgnj",
      disasm: "fsgn.s", "%frd, %frs1, %frs2";
    fsgnjn_s{: frs1, frs2 : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFSgnjn",
      disasm: "fsgnjx.s", "%frd, %frs1, %frs2";
    fsgnjx_s{: frs1, frs2 : frd},
      resources: ThreeOp,
      semfunc: "&RiscVFSgnjx",
      disasm: "fsgnjx.s", "%frd, %frs1, %frs2";
    fmv_xw{: frs1 : rd},
      resources: { next_pc, frs1 : rd[0..]},
      disasm: "mv.x.w", "%rd, %frs1",
      semfunc: "&RV32::RiscVFMvxw";
    fmv_wx{: rs1 : frd},
      resources: { next_pc, rs1 : frd[0..]},
      disasm: "mv.w.x", "%frd, %rs1",
      semfunc: "&RiscVFMvwx";
    fcmpeq_s{: frs1, frs2 : rd, fflags},
      resources: { next_pc, frs1, frs2 : rd[0..]},
      semfunc: "&RV32::RiscVFCmpeq",
      disasm: "fcmpeq", "%rd, %frs1, %frs2";
    fcmplt_s{: frs1, frs2 : rd, fflags},
      resources: { next_pc, frs1, frs2 : rd[0..]},
      semfunc: "&RV32::RiscVFCmplt",
      disasm: "fcmplt", "%rd, %frs1, %frs2";
    fcmple_s{: frs1, frs2 : rd, fflags},
      resources: { next_pc, frs1, frs2 : rd[0..]},
      semfunc: "&RV32::RiscVFCmple",
      disasm: "fcmple", "%rd, %frs1, %frs2";
    fclass_s{: frs1 : rd},
      resources: { next_pc, frs1 : rd[0..]},
      semfunc: "&RV32::RiscVFClass",
      disasm: "fclass", "%rd, %frs1";
  }
}