/* Capstone Disassembly Engine, http://www.capstone-engine.org */

/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2022, */

/*    Rot127 <unisono@quyllur.org> 2022-2023 */

/* Automatically translated source file from LLVM. */

/* LLVM-commit: <commit> */

/* LLVM-tag: <tag> */

/* Only small edits allowed. */

/* For multiple similar edits, please create a Patch for the translator. */

/* Capstone's C++ file translator: */

/* https://github.com/capstone-engine/capstone/tree/next/suite/auto-sync */

//===-- SparcInstPrinter.cpp - Convert Sparc MCInst to assembly syntax -----==//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

//

// This class prints an Sparc MCInst to a .s file.

//

//===----------------------------------------------------------------------===//

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include <capstone/platform.h>

#include "../../MCInstPrinter.h"

#include "../../Mapping.h"

#include "SparcInstPrinter.h"

#include "SparcLinkage.h"

#include "SparcMCTargetDesc.h"

#include "SparcMapping.h"

#include "SparcDisassemblerExtension.h"

#define CONCAT(a, b) CONCAT_(a, b)

#define CONCAT_(a, b) a##_##b

#define DEBUG_TYPE "asm-printer"

static void printCustomAliasOperand(MCInst *MI, uint64_t Address,

            unsigned OpIdx, unsigned PrintMethodIdx,

            SStream *OS);

static void printOperand(MCInst *MI, int opNum, SStream *O);

#define GET_INSTRUCTION_NAME

#define PRINT_ALIAS_INSTR

#include "SparcGenAsmWriter.inc"

static void printRegName(SStream *OS, MCRegister Reg)

{

  SStream_concat1(OS, '%');

  SStream_concat0(OS, getRegisterName(Reg, Sparc_NoRegAltName));

}

static void printRegNameAlt(SStream *OS, MCRegister Reg, unsigned AltIdx)

{

  SStream_concat1(OS, '%');

  SStream_concat0(OS, getRegisterName(Reg, AltIdx));

}

static void printInst(MCInst *MI, uint64_t Address, SStream *O)

{

  bool isAlias = false;

  bool useAliasDetails = map_use_alias_details(MI);

  map_set_fill_detail_ops(MI, useAliasDetails);

  if (!printAliasInstr(MI, Address, O) && !printSparcAliasInstr(MI, O)) {

    MCInst_setIsAlias(MI, false);

  } else {

    isAlias = true;

    MCInst_setIsAlias(MI, isAlias);

    if (useAliasDetails) {

      return;

    }

  }

  if (!isAlias || !useAliasDetails) {

    map_set_fill_detail_ops(MI, !(isAlias && useAliasDetails));

    if (isAlias)

      SStream_Close(O);

    printInstruction(MI, Address, O);

    if (isAlias)

      SStream_Open(O);

  }

}

bool printSparcAliasInstr(MCInst *MI, SStream *O)

{

  switch (MCInst_getOpcode(MI)) {

  default:

    return false;

  case Sparc_JMPLrr:

  case Sparc_JMPLri: {

    if (MCInst_getNumOperands(MI) != 3)

      return false;

    if (!MCOperand_isReg(MCInst_getOperand(MI, (0))))

      return false;

    switch (MCOperand_getReg(MCInst_getOperand(MI, (0)))) {

    default:

      return false;

    case Sparc_G0: // jmp $addr | ret | retl

      if (MCOperand_isImm(MCInst_getOperand(MI, (2))) &&

          MCOperand_getImm(MCInst_getOperand(MI, (2))) == 8) {

        switch (MCOperand_getReg(

          MCInst_getOperand(MI, (1)))) {

        default:

          break;

        case Sparc_I7:

          SStream_concat0(O, "\tret");

          return true;

        case Sparc_O7:

          SStream_concat0(O, "\tretl");

          return true;

        }

      }

      SStream_concat0(O, "\tjmp ");

      printMemOperand(MI, 1, O);

      return true;

    case Sparc_O7: // call $addr

      SStream_concat0(O, "\tcall ");

      printMemOperand(MI, 1, O);

      return true;

    }

  }

  case Sparc_V9FCMPS:

  case Sparc_V9FCMPD:

  case Sparc_V9FCMPQ:

  case Sparc_V9FCMPES:

  case Sparc_V9FCMPED:

  case Sparc_V9FCMPEQ: {

    if (Sparc_getFeatureBits(MI->csh->mode, Sparc_FeatureV9) ||

        (MCInst_getNumOperands(MI) != 3) ||

        (!MCOperand_isReg(MCInst_getOperand(MI, (0)))) ||

        (MCOperand_getReg(MCInst_getOperand(MI, (0))) !=

         Sparc_FCC0))

      return false;

    // if V8, skip printing %fcc0.

    switch (MCInst_getOpcode(MI)) {

    default:

    case Sparc_V9FCMPS:

      SStream_concat0(O, "\tfcmps ");

      break;

    case Sparc_V9FCMPD:

      SStream_concat0(O, "\tfcmpd ");

      break;

    case Sparc_V9FCMPQ:

      SStream_concat0(O, "\tfcmpq ");

      break;

    case Sparc_V9FCMPES:

      SStream_concat0(O, "\tfcmpes ");

      break;

    case Sparc_V9FCMPED:

      SStream_concat0(O, "\tfcmped ");

      break;

    case Sparc_V9FCMPEQ:

      SStream_concat0(O, "\tfcmpeq ");

      break;

    }

    printOperand(MI, 1, O);

    SStream_concat0(O, ", ");

    printOperand(MI, 2, O);

    return true;

  }

  }

}

static void printOperand(MCInst *MI, int opNum, SStream *O)

{

  Sparc_add_cs_detail_0(MI, Sparc_OP_GROUP_Operand, opNum);

  MCOperand *MO = MCInst_getOperand(MI, (opNum));

  if (MCOperand_isReg(MO)) {

    unsigned Reg = MCOperand_getReg(MO);

    if (Sparc_getFeatureBits(MI->csh->mode, Sparc_FeatureV9))

      printRegNameAlt(O, Reg, Sparc_RegNamesStateReg);

    else

      printRegName(O, Reg);

    return;

  }

  if (MCOperand_isImm(MO)) {

    switch (MCInst_getOpcode(MI)) {

    default:

      printInt32(O, (int)MCOperand_getImm(MO));

      return;

    case Sparc_TICCri: // Fall through

    case Sparc_TICCrr: // Fall through

    case Sparc_TRAPri: // Fall through

    case Sparc_TRAPrr: // Fall through

    case Sparc_TXCCri: // Fall through

    case Sparc_TXCCrr: // Fall through

      // Only seven-bit values up to 127.

      printInt8(O, ((int)MCOperand_getImm(MO) & 0x7f));

      return;

    }

  }

  CS_ASSERT(MCOperand_isExpr(MO) &&

      "Unknown operand kind in printOperand");

}

void printMemOperand(MCInst *MI, int opNum, SStream *O)

{

  Sparc_add_cs_detail_0(MI, Sparc_OP_GROUP_MemOperand, opNum);

  MCOperand *Op1 = MCInst_getOperand(MI, (opNum));

  MCOperand *Op2 = MCInst_getOperand(MI, (opNum + 1));

  bool PrintedFirstOperand = false;

  if (MCOperand_isReg(Op1) && MCOperand_getReg(Op1) != Sparc_G0) {

    printOperand(MI, opNum, O);

    PrintedFirstOperand = true;

  }

  // Skip the second operand iff it adds nothing (literal 0 or %g0) and we've

  // already printed the first one

  const bool SkipSecondOperand =

    PrintedFirstOperand &&

    ((MCOperand_isReg(Op2) && MCOperand_getReg(Op2) == Sparc_G0) ||

     (MCOperand_isImm(Op2) && MCOperand_getImm(Op2) == 0));

  if (!SkipSecondOperand) {

    if (PrintedFirstOperand)

      SStream_concat0(O, "+");

    printOperand(MI, opNum + 1, O);

  }

}

void printCCOperand(MCInst *MI, int opNum, SStream *O)

{

  Sparc_add_cs_detail_0(MI, Sparc_OP_GROUP_CCOperand, opNum);

  int CC = (int)MCOperand_getImm(MCInst_getOperand(MI, (opNum)));

  switch (MCInst_getOpcode(MI)) {

  default:

    break;

  case Sparc_FBCOND:

  case Sparc_FBCONDA:

  case Sparc_FBCOND_V9:

  case Sparc_FBCONDA_V9:

  case Sparc_BPFCC:

  case Sparc_BPFCCA:

  case Sparc_BPFCCNT:

  case Sparc_BPFCCANT:

  case Sparc_MOVFCCrr:

  case Sparc_V9MOVFCCrr:

  case Sparc_MOVFCCri:

  case Sparc_V9MOVFCCri:

  case Sparc_FMOVS_FCC:

  case Sparc_V9FMOVS_FCC:

  case Sparc_FMOVD_FCC:

  case Sparc_V9FMOVD_FCC:

  case Sparc_FMOVQ_FCC:

  case Sparc_V9FMOVQ_FCC:

    // Make sure CC is a fp conditional flag.

    CC = (CC < SPARC_CC_FCC_BEGIN) ? (CC + SPARC_CC_FCC_BEGIN) : CC;

    break;

  case Sparc_CBCOND:

  case Sparc_CBCONDA:

    // Make sure CC is a cp conditional flag.

    CC = (CC < SPARC_CC_CPCC_BEGIN) ? (CC + SPARC_CC_CPCC_BEGIN) :

              CC;

    break;

  case Sparc_BPR:

  case Sparc_BPRA:

  case Sparc_BPRNT:

  case Sparc_BPRANT:

  case Sparc_MOVRri:

  case Sparc_MOVRrr:

  case Sparc_FMOVRS:

  case Sparc_FMOVRD:

  case Sparc_FMOVRQ:

    // Make sure CC is a register conditional flag.

    CC = (CC < SPARC_CC_REG_BEGIN) ? (CC + SPARC_CC_REG_BEGIN) : CC;

    break;

  }

  SStream_concat0(O, SPARCCondCodeToString((sparc_cc)CC));

}

bool printGetPCX(MCInst *MI, unsigned opNum, SStream *O)

{

  printf("FIXME: Implement SparcInstPrinter::printGetPCX.");

  return true;

}

void printMembarTag(MCInst *MI, int opNum, SStream *O)

{

  Sparc_add_cs_detail_0(MI, Sparc_OP_GROUP_MembarTag, opNum);

  static const char *const TagNames[] = { "#LoadLoad",  "#StoreLoad",

            "#LoadStore", "#StoreStore",

            "#Lookaside", "#MemIssue",

            "#Sync" };

  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (opNum)));

  if (Imm > 127) {

    printUInt32(O, Imm);

    return;

  }

  bool First = true;

  for (unsigned i = 0; i < sizeof(TagNames); i++) {

    if (Imm & (1ull << i)) {

      SStream_concat(O, "%s", (First ? "" : " | "));

      SStream_concat0(O, TagNames[i]);

      First = false;

    }

  }

}

#define GET_ASITAG_IMPL

#include "SparcGenSystemOperands.inc"

void printASITag(MCInst *MI, int opNum, SStream *O)

{

  Sparc_add_cs_detail_0(MI, Sparc_OP_GROUP_ASITag, opNum);

  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (opNum)));

  const Sparc_ASITag_ASITag *ASITag =

    Sparc_ASITag_lookupASITagByEncoding(Imm);

  if (Sparc_getFeatureBits(MI->csh->mode, Sparc_FeatureV9) && ASITag) {

    SStream_concat1(O, '#');

    SStream_concat0(O, ASITag->Name);

  } else

    printUInt32(O, Imm);

}

void Sparc_LLVM_printInst(MCInst *MI, uint64_t Address, const char *Annot,

        SStream *O)

{

  printInst(MI, Address, O);

}

const char *Sparc_LLVM_getRegisterName(unsigned RegNo, unsigned AltIdx)

{

  return getRegisterName(RegNo, AltIdx);

}