/src/capstonenext/arch/ARM/ARMInstPrinter.c

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/* 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 */

//===-- ARMInstPrinter.cpp - Convert ARM 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 ARM MCInst to a .s file.
//
//===----------------------------------------------------------------------===//

#include <capstone/arm.h>

#include <capstone/platform.h>

#include "../../Mapping.h"
#include "../../MCInst.h"
#include "../../MCInstPrinter.h"
#include "../../MCRegisterInfo.h"
#include "../../SStream.h"

#include "ARMAddressingModes.h"
#include "ARMBaseInfo.h"
#include "ARMDisassemblerExtension.h"
#include "ARMInstPrinter.h"
#include "ARMLinkage.h"
#include "ARMMapping.h"

#define GET_BANKEDREG_IMPL
#include "ARMGenSystemRegister.inc"

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

#define DEBUG_TYPE "asm-printer"

// Static function declarations. These are functions which have the same identifiers
// over all architectures. Therefor they need to be static.
#ifndef CAPSTONE_DIET
static void printCustomAliasOperand(MCInst *MI, uint64_t Address,
            unsigned OpIdx, unsigned PrintMethodIdx,
            SStream *O);
#endif
static const char *getRegisterName(unsigned RegNo, unsigned AltIdx);

/// translateShiftImm - Convert shift immediate from 0-31 to 1-32 for printing.
///
/// getSORegOffset returns an integer from 0-31, representing '32' as 0.
unsigned translateShiftImm(unsigned imm)
{
  // lsr #32 and asr #32 exist, but should be encoded as a 0.
  CS_ASSERT((imm & ~0x1f) == 0 && "Invalid shift encoding");

  if (imm == 0)
    return 32;
  return imm;
}

/// Prints the shift value with an immediate value.
static inline void printRegImmShift(MCInst *MI, SStream *O,
            ARM_AM_ShiftOpc ShOpc, unsigned ShImm,
            bool UseMarkup)
{
  add_cs_detail(MI, ARM_OP_GROUP_RegImmShift, ShOpc, ShImm);
  if (ShOpc == ARM_AM_no_shift || (ShOpc == ARM_AM_lsl && !ShImm))
    return;
  SStream_concat0(O, ", ");

  CS_ASSERT(!(ShOpc == ARM_AM_ror && !ShImm) && "Cannot have ror #0");
  SStream_concat0(O, ARM_AM_getShiftOpcStr(ShOpc));

  if (ShOpc != ARM_AM_rrx) {
    SStream_concat0(O, " ");
    if (getUseMarkup())
      SStream_concat0(O, "<imm:");
    SStream_concat(O, "%s%d", "#", translateShiftImm(ShImm));
    if (getUseMarkup())
      SStream_concat0(O, ">");
  }
}

static void printPredicateOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PredicateOperand, OpNum);
  ARMCC_CondCodes CC = (ARMCC_CondCodes)MCOperand_getImm(
    MCInst_getOperand(MI, (OpNum)));
  // Handle the undefined 15 CC value here for printing so we don't abort().
  if ((unsigned)CC == 15)
    SStream_concat0(O, "<und>");
  else if (CC != ARMCC_AL)
    SStream_concat0(O, ARMCondCodeToString(CC));
}

static void printRegName(SStream *OS, unsigned RegNo)
{
  SStream_concat(OS, "%s%s", markup("<reg:"),
           getRegisterName(RegNo, ARM_NoRegAltName));
  SStream_concat0(OS, markup(">"));
}

static inline void printOperand(MCInst *MI, unsigned OpNo, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_Operand, OpNo);
  MCOperand *Op = MCInst_getOperand(MI, (OpNo));
  if (MCOperand_isReg(Op)) {
    unsigned Reg = MCOperand_getReg(Op);
    printRegName(O, Reg);
  } else if (MCOperand_isImm(Op)) {
    SStream_concat(O, "%s", markup("<imm:"));
    SStream_concat1(O, '#');
    printInt64(O, MCOperand_getImm(Op));
    SStream_concat0(O, markup(">"));
  } else {
    CS_ASSERT_RET(0 && "Expressions are not supported.");
  }
}

static inline void printRegisterList(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_RegisterList, OpNum);
  if (MCInst_getOpcode(MI) != ARM_t2CLRM) {
  }

  SStream_concat0(O, "{");
  for (unsigned i = OpNum, e = MCInst_getNumOperands(MI); i != e; ++i) {
    if (i != OpNum)
      SStream_concat0(O, ", ");
    printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (i))));
  }
  SStream_concat0(O, "}");
}

static inline void printSBitModifierOperand(MCInst *MI, unsigned OpNum,
              SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_SBitModifierOperand, OpNum);
  if (MCOperand_getReg(MCInst_getOperand(MI, (OpNum)))) {
    SStream_concat0(O, "s");
  }
}

static inline void printOperandAddr(MCInst *MI, uint64_t Address,
            unsigned OpNum, SStream *O)
{
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));
  if (!MCOperand_isImm(Op) || !MI->csh->PrintBranchImmAsAddress ||
      getUseMarkup()) {
    printOperand(MI, OpNum, O);
    return;
  }
  int64_t Imm = MCOperand_getImm(Op);
  // For ARM instructions the PC offset is 8 bytes, for Thumb instructions it
  // is 4 bytes.
  uint64_t Offset = ARM_getFeatureBits(MI->csh->mode, ARM_ModeThumb) ? 4 :
                       8;

  // A Thumb instruction BLX(i) can be 16-bit aligned while targets Arm code
  // which is 32-bit aligned. The target address for the case is calculated as
  //   targetAddress = Align(PC,4) + imm32;
  // where
  //   Align(x, y) = y * (x DIV y);
  if (MCInst_getOpcode(MI) == ARM_tBLXi)
    Address &= ~0x3;

  uint64_t Target = Address + Imm + Offset;

  Target &= 0xffffffff;
  ARM_set_detail_op_imm(MI, OpNum, ARM_OP_IMM, Target);
  printUInt64(O, Target);
}

static inline void printThumbLdrLabelOperand(MCInst *MI, unsigned OpNum,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbLdrLabelOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  if (MCOperand_isExpr(MO1)) {
    // MO1.getExpr()->print(O, &MAI);
    return;
  }

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[pc, ");

  int32_t OffImm = (int32_t)MCOperand_getImm(MO1);

  // Special value for #-0. All others are normal.
  if (OffImm == INT32_MIN)
    OffImm = 0;
  SStream_concat(O, "%s", markup("<imm:"));
  printInt32Bang(O, OffImm);
  SStream_concat0(O, markup(">"));
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

// so_reg is a 4-operand unit corresponding to register forms of the A5.1
// "Addressing Mode 1 - Data-processing operands" forms.  This includes:
//    REG 0   0           - e.g. R5
//    REG REG 0,SH_OPC    - e.g. R5, ROR R3
//    REG 0   IMM,SH_OPC  - e.g. R5, LSL #3
static inline void printSORegRegOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_SORegRegOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));
  MCOperand *MO3 = MCInst_getOperand(MI, (OpNum + 2));

  printRegName(O, MCOperand_getReg(MO1));

  // Print the shift opc.
  ARM_AM_ShiftOpc ShOpc = ARM_AM_getSORegShOp(MCOperand_getImm(MO3));
  SStream_concat(O, "%s", ", ");
  SStream_concat0(O, ARM_AM_getShiftOpcStr(ShOpc));
  if (ShOpc == ARM_AM_rrx)
    return;

  SStream_concat0(O, " ");

  printRegName(O, MCOperand_getReg(MO2));
}

static inline void printSORegImmOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_SORegImmOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  printRegName(O, MCOperand_getReg(MO1));

  // Print the shift opc.
  printRegImmShift(MI, O, ARM_AM_getSORegShOp(MCOperand_getImm(MO2)),
       ARM_AM_getSORegOffset(MCOperand_getImm(MO2)),
       getUseMarkup());
}

//===--------------------------------------------------------------------===//
// Addressing Mode #2
//===--------------------------------------------------------------------===//

static inline void printAM2PreOrOffsetIndexOp(MCInst *MI, unsigned Op,
                SStream *O)
{
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));
  MCOperand *MO3 = MCInst_getOperand(MI, (Op + 2));

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));

  if (!MCOperand_getReg(MO2)) {
    if (ARM_AM_getAM2Offset(
          MCOperand_getImm(MO3))) { // Don't print +0.
      SStream_concat(
        O, "%s%s%s", ", ", markup("<imm:"), "#",
        ARM_AM_getAddrOpcStr(
          ARM_AM_getAM2Op(MCOperand_getImm(MO3))),
        ARM_AM_getAM2Offset(MCOperand_getImm(MO3)));
      SStream_concat0(O, markup(">"));
    }
    SStream_concat(O, "%s", "]");
    SStream_concat0(O, markup(">"));
    return;
  }

  SStream_concat0(O, ", ");
  SStream_concat0(O, ARM_AM_getAddrOpcStr(
           ARM_AM_getAM2Op(MCOperand_getImm(MO3))));
  printRegName(O, MCOperand_getReg(MO2));

  printRegImmShift(MI, O, ARM_AM_getAM2ShiftOpc(MCOperand_getImm(MO3)),
       ARM_AM_getAM2Offset(MCOperand_getImm(MO3)),
       getUseMarkup());
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printAddrModeTBB(MCInst *MI, unsigned Op, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrModeTBB, Op);
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));
  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MO2));
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printAddrModeTBH(MCInst *MI, unsigned Op, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrModeTBH, Op);
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));
  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MO2));
  SStream_concat(O, "%s%s%s%s%s", ", lsl ", markup("<imm:"), "#1",
           markup(">"), "]");
  SStream_concat0(O, markup(">"));
}

static inline void printAddrMode2Operand(MCInst *MI, unsigned Op, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode2Operand, Op);
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));

  if (!MCOperand_isReg(
        MO1)) { // FIXME: This is for CP entries, but isn't right.
    printOperand(MI, Op, O);
    return;
  }

  printAM2PreOrOffsetIndexOp(MI, Op, O);
}

static inline void printAddrMode2OffsetOperand(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode2OffsetOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  if (!MCOperand_getReg(MO1)) {
    unsigned ImmOffs = ARM_AM_getAM2Offset(MCOperand_getImm(MO2));
    SStream_concat(O, "%s", markup("<imm:"));
    SStream_concat1(O, '#');
    SStream_concat(O, "%s",
             ARM_AM_getAddrOpcStr(
               ARM_AM_getAM2Op(MCOperand_getImm(MO2))));
    printUInt32(O, ImmOffs);
    SStream_concat0(O, markup(">"));
    return;
  }

  SStream_concat0(O, ARM_AM_getAddrOpcStr(
           ARM_AM_getAM2Op(MCOperand_getImm(MO2))));
  printRegName(O, MCOperand_getReg(MO1));

  printRegImmShift(MI, O, ARM_AM_getAM2ShiftOpc(MCOperand_getImm(MO2)),
       ARM_AM_getAM2Offset(MCOperand_getImm(MO2)),
       getUseMarkup());
}

//===--------------------------------------------------------------------===//
// Addressing Mode #3
//===--------------------------------------------------------------------===//

static inline void printAM3PreOrOffsetIndexOp(MCInst *MI, unsigned Op,
                SStream *O, bool AlwaysPrintImm0)
{
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));
  MCOperand *MO3 = MCInst_getOperand(MI, (Op + 2));

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");

  printRegName(O, MCOperand_getReg(MO1));

  if (MCOperand_getReg(MO2)) {
    SStream_concat(O, "%s", ", ");
    SStream_concat0(O, ARM_AM_getAddrOpcStr(ARM_AM_getAM3Op(
             MCOperand_getImm(MO3))));
    printRegName(O, MCOperand_getReg(MO2));
    SStream_concat1(O, ']');
    SStream_concat0(O, markup(">"));
    return;
  }

  // If the op is sub we have to print the immediate even if it is 0
  unsigned ImmOffs = ARM_AM_getAM3Offset(MCOperand_getImm(MO3));
  ARM_AM_AddrOpc op = ARM_AM_getAM3Op(MCOperand_getImm(MO3));

  if (AlwaysPrintImm0 || ImmOffs || (op == ARM_AM_sub)) {
    SStream_concat(O, "%s%s%s%s", ", ", markup("<imm:"), "#",
             ARM_AM_getAddrOpcStr(op));
    printUInt32(O, ImmOffs);
    SStream_concat0(O, markup(">"));
  }
  SStream_concat1(O, ']');
  SStream_concat0(O, markup(">"));
}

#define DEFINE_printAddrMode3Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printAddrMode3Operand, AlwaysPrintImm0)( \
    MCInst * MI, unsigned Op, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_AddrMode3Operand, \
             AlwaysPrintImm0), \
            Op, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (Op)); \
    if (!MCOperand_isReg(MO1)) { \
      printOperand(MI, Op, O); \
      return; \
    } \
\
    printAM3PreOrOffsetIndexOp(MI, Op, O, AlwaysPrintImm0); \
  }
DEFINE_printAddrMode3Operand(false);
DEFINE_printAddrMode3Operand(true);

static inline void printAddrMode3OffsetOperand(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode3OffsetOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  if (MCOperand_getReg(MO1)) {
    SStream_concat0(O, ARM_AM_getAddrOpcStr(ARM_AM_getAM3Op(
             MCOperand_getImm(MO2))));
    printRegName(O, MCOperand_getReg(MO1));
    return;
  }

  unsigned ImmOffs = ARM_AM_getAM3Offset(MCOperand_getImm(MO2));
  SStream_concat(O, "%s", markup("<imm:"));
  SStream_concat1(O, '#');
  SStream_concat(
    O, "%s",
    ARM_AM_getAddrOpcStr(ARM_AM_getAM3Op(MCOperand_getImm(MO2))));
  printUInt32(O, ImmOffs);
  SStream_concat0(O, markup(">"));
}

static inline void printPostIdxImm8Operand(MCInst *MI, unsigned OpNum,
             SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PostIdxImm8Operand, OpNum);
  MCOperand *MO = MCInst_getOperand(MI, (OpNum));
  unsigned Imm = MCOperand_getImm(MO);
  SStream_concat(O, "%s", markup("<imm:"));
  SStream_concat1(O, '#');
  SStream_concat(O, "%s", ((Imm & 256) ? "" : "-"));
  printUInt32(O, (Imm & 0xff));
  SStream_concat0(O, markup(">"));
}

static inline void printPostIdxRegOperand(MCInst *MI, unsigned OpNum,
            SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PostIdxRegOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  SStream_concat0(O, (MCOperand_getImm(MO2) ? "" : "-"));
  printRegName(O, MCOperand_getReg(MO1));
}

static inline void printPostIdxImm8s4Operand(MCInst *MI, unsigned OpNum,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PostIdxImm8s4Operand, OpNum);
  MCOperand *MO = MCInst_getOperand(MI, (OpNum));
  unsigned Imm = MCOperand_getImm(MO);
  SStream_concat(O, "%s", markup("<imm:"));
  SStream_concat1(O, '#');
  SStream_concat(O, "%s", ((Imm & 256) ? "" : "-"));
  printUInt32(O, (Imm & 0xff) << 2);
  SStream_concat0(O, markup(">"));
}

#define DEFINE_printMveAddrModeRQOperand(shift) \
  static inline void CONCAT(printMveAddrModeRQOperand, shift)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail( \
      MI, CONCAT(ARM_OP_GROUP_MveAddrModeRQOperand, shift), \
      OpNum, shift); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
    SStream_concat0(O, ", "); \
    printRegName(O, MCOperand_getReg(MO2)); \
\
    if (shift > 0) \
      printRegImmShift(MI, O, ARM_AM_uxtw, shift, \
           getUseMarkup()); \
\
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printMveAddrModeRQOperand(0);
DEFINE_printMveAddrModeRQOperand(3);
DEFINE_printMveAddrModeRQOperand(1);
DEFINE_printMveAddrModeRQOperand(2);

#define DEFINE_printAddrMode5Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printAddrMode5Operand, AlwaysPrintImm0)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_AddrMode5Operand, \
             AlwaysPrintImm0), \
            OpNum, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
\
    unsigned ImmOffs = ARM_AM_getAM5Offset(MCOperand_getImm(MO2)); \
    ARM_AM_AddrOpc Op = ARM_AM_getAM5Op(MCOperand_getImm(MO2)); \
    if (AlwaysPrintImm0 || ImmOffs || Op == ARM_AM_sub) { \
      SStream_concat(O, "%s%s%s%s", ", ", markup("<imm:"), \
               "#", ARM_AM_getAddrOpcStr(Op)); \
      printUInt32(O, ImmOffs * 4); \
      SStream_concat0(O, markup(">")); \
    } \
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printAddrMode5Operand(false);
DEFINE_printAddrMode5Operand(true);

#define DEFINE_printAddrMode5FP16Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printAddrMode5FP16Operand, AlwaysPrintImm0)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_AddrMode5FP16Operand, \
             AlwaysPrintImm0), \
            OpNum, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    if (!MCOperand_isReg(MO1)) { \
      printOperand(MI, OpNum, O); \
      return; \
    } \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
\
    unsigned ImmOffs = \
      ARM_AM_getAM5FP16Offset(MCOperand_getImm(MO2)); \
    unsigned Op = ARM_AM_getAM5FP16Op(MCOperand_getImm(MO2)); \
    if (AlwaysPrintImm0 || ImmOffs || Op == ARM_AM_sub) { \
      SStream_concat( \
        O, "%s%s%s%s", ", ", markup("<imm:"), "#", \
        ARM_AM_getAddrOpcStr(ARM_AM_getAM5FP16Op( \
          MCOperand_getImm(MO2)))); \
      printUInt32(O, ImmOffs * 2); \
      SStream_concat0(O, markup(">")); \
    } \
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printAddrMode5FP16Operand(false);

static inline void printAddrMode6Operand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode6Operand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  if (MCOperand_getImm(MO2)) {
    SStream_concat(O, "%s", ":");
    printInt64(O, ((uint32_t)MCOperand_getImm(MO2)) << 3);
  }
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printAddrMode7Operand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode7Operand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printAddrMode6OffsetOperand(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_AddrMode6OffsetOperand, OpNum);
  MCOperand *MO = MCInst_getOperand(MI, (OpNum));
  if (MCOperand_getReg(MO) == 0)
    SStream_concat0(O, "!");
  else {
    SStream_concat0(O, ", ");
    printRegName(O, MCOperand_getReg(MO));
  }
}

static inline void printBitfieldInvMaskImmOperand(MCInst *MI, unsigned OpNum,
              SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_BitfieldInvMaskImmOperand, OpNum);
  MCOperand *MO = MCInst_getOperand(MI, (OpNum));
  uint32_t v = ~MCOperand_getImm(MO);
  int32_t lsb = CountTrailingZeros_32(v);
  int32_t width = (32 - countLeadingZeros(v)) - lsb;

  SStream_concat(O, "%s", markup("<imm:"));
  SStream_concat1(O, '#');
  printInt32(O, lsb);
  SStream_concat(O, "%s%s%s", markup(">"), ", ", markup("<imm:"));
  printInt32Bang(O, width);
  SStream_concat0(O, markup(">"));
}

static inline void printMemBOption(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MemBOption, OpNum);
  unsigned val = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  SStream_concat0(O, ARM_MB_MemBOptToString(
           val, ARM_getFeatureBits(MI->csh->mode,
                 ARM_HasV8Ops)));
}

static inline void printInstSyncBOption(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_InstSyncBOption, OpNum);
  unsigned val = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  SStream_concat0(O, ARM_ISB_InstSyncBOptToString(val));
}

static inline void printTraceSyncBOption(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_TraceSyncBOption, OpNum);
  unsigned val = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  SStream_concat0(O, ARM_TSB_TraceSyncBOptToString(val));
}

static inline void printShiftImmOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ShiftImmOperand, OpNum);
  unsigned ShiftOp = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  bool isASR = (ShiftOp & (1 << 5)) != 0;
  unsigned Amt = ShiftOp & 0x1f;
  if (isASR) {
    SStream_concat(O, "%s%s%s", ", asr ", markup("<imm:"), "#");
    printUInt32(O, Amt == 0 ? 32 : Amt);
    SStream_concat0(O, markup(">"));
  } else if (Amt) {
    SStream_concat(O, "%s%s%s", ", lsl ", markup("<imm:"), "#");
    printUInt32(O, Amt);
    SStream_concat0(O, markup(">"));
  }
}

static inline void printPKHLSLShiftImm(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PKHLSLShiftImm, OpNum);
  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  if (Imm == 0)
    return;

  SStream_concat(O, "%s%s%s", ", lsl ", markup("<imm:"), "#");
  printUInt32(O, Imm);
  SStream_concat0(O, markup(">"));
}

static inline void printPKHASRShiftImm(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PKHASRShiftImm, OpNum);
  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  // A shift amount of 32 is encoded as 0.
  if (Imm == 0)
    Imm = 32;

  SStream_concat(O, "%s%s%s", ", asr ", markup("<imm:"), "#");
  printUInt32(O, Imm);
  SStream_concat0(O, markup(">"));
}

static inline void printGPRPairOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_GPRPairOperand, OpNum);
  unsigned Reg = MCOperand_getReg(MCInst_getOperand(MI, (OpNum)));
  printRegName(O, MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_gsub_0));
  SStream_concat0(O, ", ");
  printRegName(O, MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_gsub_1));
}

static inline void printSetendOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_SetendOperand, OpNum);
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));
  if (MCOperand_getImm(Op))
    SStream_concat0(O, "be");
  else
    SStream_concat0(O, "le");
}

static inline void printCPSIMod(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_CPSIMod, OpNum);
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));
  SStream_concat0(O, ARM_PROC_IModToString(MCOperand_getImm(Op)));
}

static inline void printCPSIFlag(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_CPSIFlag, OpNum);
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));
  unsigned IFlags = MCOperand_getImm(Op);
  for (int i = 2; i >= 0; --i)
    if (IFlags & (1 << i))
      SStream_concat0(O, ARM_PROC_IFlagsToString(1 << i));

  if (IFlags == 0)
    SStream_concat0(O, "none");
}

static inline void printMSRMaskOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MSRMaskOperand, OpNum);
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));

  if (ARM_getFeatureBits(MI->csh->mode, ARM_FeatureMClass)) {
    unsigned SYSm = MCOperand_getImm(Op) & 0xFFF; // 12-bit SYSm
    unsigned Opcode = MCInst_getOpcode(MI);

    // For writes, handle extended mask bits if the DSP extension is
    // present.
    if (Opcode == ARM_t2MSR_M &&
        ARM_getFeatureBits(MI->csh->mode, ARM_FeatureDSP)) {
      const ARMSysReg_MClassSysReg *TheReg =
        ARMSysReg_lookupMClassSysRegBy12bitSYSmValue(
          SYSm);
      if (TheReg && MClassSysReg_isInRequiredFeatures(
                TheReg, ARM_FeatureDSP)) {
        SStream_concat0(O, TheReg->Name);
        return;
      }
    }

    // Handle the basic 8-bit mask.
    SYSm &= 0xff;
    if (Opcode == ARM_t2MSR_M &&
        ARM_getFeatureBits(MI->csh->mode, ARM_HasV7Ops)) {
      // ARMv7-M deprecates using MSR APSR without a _<bits> qualifier as
      // an alias for MSR APSR_nzcvq.
      const ARMSysReg_MClassSysReg *TheReg =
        ARMSysReg_lookupMClassSysRegAPSRNonDeprecated(
          SYSm);
      if (TheReg) {
        SStream_concat0(O, TheReg->Name);
        return;
      }
    }

    const ARMSysReg_MClassSysReg *TheReg =
      ARMSysReg_lookupMClassSysRegBy8bitSYSmValue(SYSm);
    if (TheReg) {
      SStream_concat0(O, TheReg->Name);
      return;
    }

    printUInt32(O, SYSm);

    return;
  }

  // As special cases, CPSR_f, CPSR_s and CPSR_fs prefer printing as
  // APSR_nzcvq, APSR_g and APSRnzcvqg, respectively.
  unsigned SpecRegRBit = MCOperand_getImm(Op) >> 4;
  unsigned Mask = MCOperand_getImm(Op) & 0xf;

  if (!SpecRegRBit && (Mask == 8 || Mask == 4 || Mask == 12)) {
    SStream_concat0(O, "apsr_");
    switch (Mask) {
    default:
      CS_ASSERT_RET(0 && "Unexpected mask value!");
    case 4:
      SStream_concat0(O, "g");
      return;
    case 8:
      SStream_concat0(O, "nzcvq");
      return;
    case 12:
      SStream_concat0(O, "nzcvqg");
      return;
    }
  }

  if (SpecRegRBit)
    SStream_concat0(O, "spsr");
  else
    SStream_concat0(O, "cpsr");

  if (Mask) {
    SStream_concat0(O, "_");

    if (Mask & 8)
      SStream_concat0(O, "f");

    if (Mask & 4)
      SStream_concat0(O, "s");

    if (Mask & 2)
      SStream_concat0(O, "x");

    if (Mask & 1)
      SStream_concat0(O, "c");
  }
}

static inline void printBankedRegOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_BankedRegOperand, OpNum);
  uint32_t Banked = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  const ARMBankedReg_BankedReg *TheReg =
    ARMBankedReg_lookupBankedRegByEncoding(Banked);

  const char *Name = TheReg->Name;

  // uint32_t isSPSR = (Banked & 0x20) >> 5;
  // if (isSPSR)
  //  Name.replace(0, 4, "SPSR"); // convert 'spsr_' to 'SPSR_'
  SStream_concat0(O, Name);
}

static inline void printMandatoryPredicateOperand(MCInst *MI, unsigned OpNum,
              SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MandatoryPredicateOperand, OpNum);
  ARMCC_CondCodes CC = (ARMCC_CondCodes)MCOperand_getImm(
    MCInst_getOperand(MI, (OpNum)));
  SStream_concat0(O, ARMCondCodeToString(CC));
}

static inline void
printMandatoryRestrictedPredicateOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MandatoryRestrictedPredicateOperand,
          OpNum);
  if ((ARMCC_CondCodes)MCOperand_getImm(MCInst_getOperand(MI, (OpNum))) ==
      ARMCC_HS)
    SStream_concat0(O, "cs");
  else
    printMandatoryPredicateOperand(MI, OpNum, O);
}

static inline void
printMandatoryInvertedPredicateOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MandatoryInvertedPredicateOperand,
          OpNum);
  ARMCC_CondCodes CC = (ARMCC_CondCodes)MCOperand_getImm(
    MCInst_getOperand(MI, (OpNum)));
  SStream_concat0(O, ARMCondCodeToString(ARMCC_getOppositeCondition(CC)));
}

static inline void printNoHashImmediate(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_NoHashImmediate, OpNum);
  printInt64(O, MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
}

static inline void printPImmediate(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_PImmediate, OpNum);
  SStream_concat(O, "%s%d", "p",
           MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
}

static inline void printCImmediate(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_CImmediate, OpNum);
  SStream_concat(O, "%s%d", "c",
           MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
}

static inline void printCoprocOptionImm(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_CoprocOptionImm, OpNum);
  SStream_concat(O, "%s", "{");
  printInt64(O, MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "}");
}

#define DEFINE_printAdrLabelOperand(scale) \
  static inline void CONCAT(printAdrLabelOperand, scale)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, CONCAT(ARM_OP_GROUP_AdrLabelOperand, scale), \
            OpNum, scale); \
    MCOperand *MO = MCInst_getOperand(MI, (OpNum)); \
\
    if (MCOperand_isExpr(MO)) { \
      return; \
    } \
\
    int32_t OffImm = (uint32_t)MCOperand_getImm(MO) << scale; \
\
    SStream_concat0(O, markup("<imm:")); \
    if (OffImm == INT32_MIN) \
      SStream_concat0(O, "#-0"); \
    else if (OffImm < 0) { \
      printInt32Bang(O, OffImm); \
    } else { \
      printInt32Bang(O, OffImm); \
    } \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printAdrLabelOperand(0);
DEFINE_printAdrLabelOperand(2);

#define DEFINE_printAdrLabelOperandAddr(scale) \
  static inline void CONCAT(printAdrLabelOperandAddr, scale)( \
    MCInst * MI, uint64_t Address, unsigned OpNum, SStream *O) \
  { \
    CONCAT(printAdrLabelOperand, scale)(MI, OpNum, O); \
  }
DEFINE_printAdrLabelOperandAddr(2);

static inline void printThumbS4ImmOperand(MCInst *MI, unsigned OpNum,
            SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbS4ImmOperand, OpNum);
  SStream_concat(O, "%s", markup("<imm:"));
  printInt64Bang(O, MCOperand_getImm(MCInst_getOperand(MI, (OpNum))) * 4);
  SStream_concat0(O, markup(">"));
}

static inline void printThumbSRImm(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbSRImm, OpNum);
  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  SStream_concat(O, "%s", markup("<imm:"));
  printUInt32Bang(O, (Imm == 0 ? 32 : Imm));
  SStream_concat0(O, markup(">"));
}

static inline void printThumbITMask(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbITMask, OpNum);
  // (3 - the number of trailing zeros) is the number of then / else.
  unsigned Mask = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  unsigned NumTZ = CountTrailingZeros_32(Mask);

  for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
    if ((Mask >> Pos) & 1)
      SStream_concat0(O, "e");

    else
      SStream_concat0(O, "t");
  }
}

static inline void printThumbAddrModeRROperand(MCInst *MI, unsigned Op,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbAddrModeRROperand, Op);
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));

  if (!MCOperand_isReg(
        MO1)) { // FIXME: This is for CP entries, but isn't right.
    printOperand(MI, Op, O);
    return;
  }

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  unsigned RegNum = MCOperand_getReg(MO2);
  if (RegNum) {
    SStream_concat0(O, ", ");
    printRegName(O, RegNum);
  }
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printThumbAddrModeImm5SOperand(MCInst *MI, unsigned Op,
              SStream *O, unsigned Scale)
{
  MCOperand *MO1 = MCInst_getOperand(MI, (Op));
  MCOperand *MO2 = MCInst_getOperand(MI, (Op + 1));

  if (!MCOperand_isReg(
        MO1)) { // FIXME: This is for CP entries, but isn't right.
    printOperand(MI, Op, O);
    return;
  }

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  unsigned ImmOffs = MCOperand_getImm(MO2);
  if (ImmOffs) {
    SStream_concat(O, "%s%s", ", ", markup("<imm:"));
    printUInt32Bang(O, ImmOffs * Scale);
    SStream_concat0(O, markup(">"));
  }
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printThumbAddrModeImm5S1Operand(MCInst *MI, unsigned Op,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbAddrModeImm5S1Operand, Op);
  printThumbAddrModeImm5SOperand(MI, Op, O, 1);
}

static inline void printThumbAddrModeImm5S2Operand(MCInst *MI, unsigned Op,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbAddrModeImm5S2Operand, Op);
  printThumbAddrModeImm5SOperand(MI, Op, O, 2);
}

static inline void printThumbAddrModeImm5S4Operand(MCInst *MI, unsigned Op,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbAddrModeImm5S4Operand, Op);
  printThumbAddrModeImm5SOperand(MI, Op, O, 4);
}

static inline void printThumbAddrModeSPOperand(MCInst *MI, unsigned Op,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ThumbAddrModeSPOperand, Op);
  printThumbAddrModeImm5SOperand(MI, Op, O, 4);
}

// Constant shifts t2_so_reg is a 2-operand unit corresponding to the Thumb2
// register with shift forms.
// REG 0   0           - e.g. R5
// REG IMM, SH_OPC     - e.g. R5, LSL #3
static inline void printT2SOOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_T2SOOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  unsigned Reg = MCOperand_getReg(MO1);
  printRegName(O, Reg);

  // Print the shift opc.

  printRegImmShift(MI, O, ARM_AM_getSORegShOp(MCOperand_getImm(MO2)),
       ARM_AM_getSORegOffset(MCOperand_getImm(MO2)),
       getUseMarkup());
}

#define DEFINE_printAddrModeImm12Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printAddrModeImm12Operand, AlwaysPrintImm0)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_AddrModeImm12Operand, \
             AlwaysPrintImm0), \
            OpNum, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    if (!MCOperand_isReg(MO1)) { \
      printOperand(MI, OpNum, O); \
      return; \
    } \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
\
    int32_t OffImm = (int32_t)MCOperand_getImm(MO2); \
    bool isSub = OffImm < 0; \
\
    if (OffImm == INT32_MIN) \
      OffImm = 0; \
    if (isSub) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } else if (AlwaysPrintImm0 || OffImm > 0) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } \
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printAddrModeImm12Operand(false);
DEFINE_printAddrModeImm12Operand(true);

#define DEFINE_printT2AddrModeImm8Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printT2AddrModeImm8Operand, \
          AlwaysPrintImm0)(MCInst * MI, \
               unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_T2AddrModeImm8Operand, \
             AlwaysPrintImm0), \
            OpNum, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
\
    int32_t OffImm = (int32_t)MCOperand_getImm(MO2); \
    bool isSub = OffImm < 0; \
\
    if (OffImm == INT32_MIN) \
      OffImm = 0; \
    if (isSub) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } else if (AlwaysPrintImm0 || OffImm > 0) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } \
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }
DEFINE_printT2AddrModeImm8Operand(true);
DEFINE_printT2AddrModeImm8Operand(false);

#define DEFINE_printT2AddrModeImm8s4Operand(AlwaysPrintImm0) \
  static inline void CONCAT(printT2AddrModeImm8s4Operand, \
          AlwaysPrintImm0)(MCInst * MI, \
               unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, \
            CONCAT(ARM_OP_GROUP_T2AddrModeImm8s4Operand, \
             AlwaysPrintImm0), \
            OpNum, AlwaysPrintImm0); \
    MCOperand *MO1 = MCInst_getOperand(MI, (OpNum)); \
    MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1)); \
\
    if (!MCOperand_isReg(MO1)) { \
      printOperand(MI, OpNum, O); \
      return; \
    } \
\
    SStream_concat(O, "%s", markup("<mem:")); \
    SStream_concat0(O, "["); \
    printRegName(O, MCOperand_getReg(MO1)); \
\
    int32_t OffImm = (int32_t)MCOperand_getImm(MO2); \
    bool isSub = OffImm < 0; \
\
    if (OffImm == INT32_MIN) \
      OffImm = 0; \
    if (isSub) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } else if (AlwaysPrintImm0 || OffImm > 0) { \
      SStream_concat(O, "%s%s", ", ", markup("<imm:")); \
      printInt32Bang(O, OffImm); \
      SStream_concat0(O, markup(">")); \
    } \
    SStream_concat(O, "%s", "]"); \
    SStream_concat0(O, markup(">")); \
  }

DEFINE_printT2AddrModeImm8s4Operand(false);
DEFINE_printT2AddrModeImm8s4Operand(true);

static inline void printT2AddrModeImm0_1020s4Operand(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_T2AddrModeImm0_1020s4Operand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));
  if (MCOperand_getImm(MO2)) {
    SStream_concat(O, "%s%s", ", ", markup("<imm:"));
    printInt64Bang(O, (int32_t)(MCOperand_getImm(MO2) * 4));
    SStream_concat0(O, markup(">"));
  }
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printT2AddrModeImm8OffsetOperand(MCInst *MI, unsigned OpNum,
                SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_T2AddrModeImm8OffsetOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  int32_t OffImm = (int32_t)MCOperand_getImm(MO1);
  SStream_concat(O, "%s", ", ");
  SStream_concat0(O, markup("<imm:"));
  if (OffImm == INT32_MIN)
    SStream_concat0(O, "#-0");
  else if (OffImm < 0) {
    printInt32Bang(O, OffImm);
  } else {
    printInt32Bang(O, OffImm);
  }
  SStream_concat0(O, markup(">"));
}

static inline void
printT2AddrModeImm8s4OffsetOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_T2AddrModeImm8s4OffsetOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  int32_t OffImm = (int32_t)MCOperand_getImm(MO1);

  SStream_concat(O, "%s", ", ");
  SStream_concat0(O, markup("<imm:"));
  if (OffImm == INT32_MIN)
    SStream_concat0(O, "#-0");
  else if (OffImm < 0) {
    printInt32Bang(O, OffImm);
  } else {
    printInt32Bang(O, OffImm);
  }
  SStream_concat0(O, markup(">"));
}

static inline void printT2AddrModeSoRegOperand(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_T2AddrModeSoRegOperand, OpNum);
  MCOperand *MO1 = MCInst_getOperand(MI, (OpNum));
  MCOperand *MO2 = MCInst_getOperand(MI, (OpNum + 1));
  MCOperand *MO3 = MCInst_getOperand(MI, (OpNum + 2));

  SStream_concat(O, "%s", markup("<mem:"));
  SStream_concat0(O, "[");
  printRegName(O, MCOperand_getReg(MO1));

  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MO2));

  unsigned ShAmt = MCOperand_getImm(MO3);
  if (ShAmt) {
    SStream_concat(O, "%s%s%s", ", lsl ", markup("<imm:"), "#");
    printUInt32(O, ShAmt);
    SStream_concat0(O, markup(">"));
  }
  SStream_concat(O, "%s", "]");
  SStream_concat0(O, markup(">"));
}

static inline void printFPImmOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_FPImmOperand, OpNum);
  MCOperand *MO = MCInst_getOperand(MI, (OpNum));
  SStream_concat(O, "%s", markup("<imm:"));
  printFloatBang(O, ARM_AM_getFPImmFloat(MCOperand_getImm(MO)));
  SStream_concat0(O, markup(">"));
}

static inline void printVMOVModImmOperand(MCInst *MI, unsigned OpNum,
            SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VMOVModImmOperand, OpNum);
  unsigned EncodedImm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  unsigned EltBits;
  uint64_t Val = ARM_AM_decodeVMOVModImm(EncodedImm, &EltBits);
  SStream_concat(O, "%s", markup("<imm:"));
  printUInt64Bang(O, Val);
  SStream_concat0(O, markup(">"));
}

static inline void printImmPlusOneOperand(MCInst *MI, unsigned OpNum,
            SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ImmPlusOneOperand, OpNum);
  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  SStream_concat(O, "%s", markup("<imm:"));
  printUInt32Bang(O, Imm + 1);
  SStream_concat0(O, markup(">"));
}

static inline void printRotImmOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_RotImmOperand, OpNum);
  unsigned Imm = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  if (Imm == 0)
    return;

  SStream_concat(O, "%s%s%s%d", ", ror ", markup("<imm:"), "#", 8 * Imm);
  SStream_concat0(O, markup(">"));
}

static inline void printModImmOperand(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_ModImmOperand, OpNum);
  MCOperand *Op = MCInst_getOperand(MI, (OpNum));

  // Support for fixups (MCFixup)
  if (MCOperand_isExpr(Op)) {
    printOperand(MI, OpNum, O);
    return;
  }

  unsigned Bits = MCOperand_getImm(Op) & 0xFF;
  unsigned Rot = (MCOperand_getImm(Op) & 0xF00) >> 7;

  bool PrintUnsigned = false;
  switch (MCInst_getOpcode(MI)) {
  case ARM_MOVi:
    // Movs to PC should be treated unsigned
    PrintUnsigned =
      (MCOperand_getReg(MCInst_getOperand(MI, (OpNum - 1))) ==
       ARM_PC);
    break;
  case ARM_MSRi:
    // Movs to special registers should be treated unsigned
    PrintUnsigned = true;
    break;
  }

  int32_t Rotated = ARM_AM_rotr32(Bits, Rot);
  if (ARM_AM_getSOImmVal(Rotated) == MCOperand_getImm(Op)) {
    // #rot has the least possible value
    SStream_concat(O, "%s", "#");
    SStream_concat0(O, markup("<imm:"));
    if (PrintUnsigned)
      printUInt32(O, (uint32_t)(Rotated));
    else
      printInt32(O, Rotated);
    SStream_concat0(O, markup(">"));
    return;
  }

  // Explicit #bits, #rot implied
  SStream_concat(O, "%s%s%u", "#", markup("<imm:"), Bits);
  SStream_concat(O, "%s%s%s%u", markup(">"), ", #", markup("<imm:"), Rot);
  SStream_concat0(O, markup(">"));
}

static inline void printFBits16(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_FBits16, OpNum);
  SStream_concat(O, "%s%s", markup("<imm:"), "#");
  SStream_concat(O, "%d",
           16 - MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, markup(">"));
}

static inline void printFBits32(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_FBits32, OpNum);
  SStream_concat(O, "%s%s", markup("<imm:"), "#");
  printInt64(O, 32 - MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, markup(">"));
}

static inline void printVectorIndex(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorIndex, OpNum);
  SStream_concat(O, "%s", "[");
  printInt64(O,
       (int32_t)MCOperand_getImm(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "]");
}

static inline void printVectorListOne(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListOne, OpNum);
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "}");
}

static inline void printVectorListTwo(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListTwo, OpNum);
  unsigned Reg = MCOperand_getReg(MCInst_getOperand(MI, (OpNum)));
  unsigned Reg0 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_0);
  unsigned Reg1 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_1);
  SStream_concat0(O, "{");
  printRegName(O, Reg0);
  SStream_concat0(O, ", ");
  printRegName(O, Reg1);
  SStream_concat0(O, "}");
}

static inline void printVectorListTwoSpaced(MCInst *MI, unsigned OpNum,
              SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListTwoSpaced, OpNum);
  unsigned Reg = MCOperand_getReg(MCInst_getOperand(MI, (OpNum)));
  unsigned Reg0 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_0);
  unsigned Reg1 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_2);
  SStream_concat0(O, "{");
  printRegName(O, Reg0);
  SStream_concat0(O, ", ");
  printRegName(O, Reg1);
  SStream_concat0(O, "}");
}

static inline void printVectorListThree(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListThree, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 1);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, "}");
}

static inline void printVectorListFour(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListFour, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 1);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 3);
  SStream_concat0(O, "}");
}

static inline void printVectorListOneAllLanes(MCInst *MI, unsigned OpNum,
                SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListOneAllLanes, OpNum);
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "[]}");
}

static inline void printVectorListTwoAllLanes(MCInst *MI, unsigned OpNum,
                SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListTwoAllLanes, OpNum);
  unsigned Reg = MCOperand_getReg(MCInst_getOperand(MI, (OpNum)));
  unsigned Reg0 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_0);
  unsigned Reg1 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_1);
  SStream_concat0(O, "{");
  printRegName(O, Reg0);
  SStream_concat0(O, "[], ");
  printRegName(O, Reg1);
  SStream_concat0(O, "[]}");
}

static inline void printVectorListThreeAllLanes(MCInst *MI, unsigned OpNum,
            SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListThreeAllLanes, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 1);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, "[]}");
}

static inline void printVectorListFourAllLanes(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListFourAllLanes, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 1);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 3);
  SStream_concat0(O, "[]}");
}

static inline void printVectorListTwoSpacedAllLanes(MCInst *MI, unsigned OpNum,
                SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListTwoSpacedAllLanes, OpNum);
  unsigned Reg = MCOperand_getReg(MCInst_getOperand(MI, (OpNum)));
  unsigned Reg0 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_0);
  unsigned Reg1 = MCRegisterInfo_getSubReg(MI->MRI, Reg, ARM_dsub_2);
  SStream_concat0(O, "{");
  printRegName(O, Reg0);
  SStream_concat0(O, "[], ");
  printRegName(O, Reg1);
  SStream_concat0(O, "[]}");
}

static inline void
printVectorListThreeSpacedAllLanes(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListThreeSpacedAllLanes, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 4);
  SStream_concat0(O, "[]}");
}

static inline void printVectorListFourSpacedAllLanes(MCInst *MI, unsigned OpNum,
                 SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListFourSpacedAllLanes, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 4);
  SStream_concat0(O, "[], ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 6);
  SStream_concat0(O, "[]}");
}

static inline void printVectorListThreeSpaced(MCInst *MI, unsigned OpNum,
                SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListThreeSpaced, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 4);
  SStream_concat0(O, "}");
}

static inline void printVectorListFourSpaced(MCInst *MI, unsigned OpNum,
               SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VectorListFourSpaced, OpNum);
  // Normally, it's not safe to use register enum values directly with
  // addition to get the next register, but for VFP registers, the
  // sort order is guaranteed because they're all of the form D<n>.
  SStream_concat0(O, "{");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))));
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 2);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 4);
  SStream_concat0(O, ", ");
  printRegName(O, MCOperand_getReg(MCInst_getOperand(MI, (OpNum))) + 6);
  SStream_concat0(O, "}");
}

#define DEFINE_printMVEVectorList(NumRegs) \
  static inline void CONCAT(printMVEVectorList, NumRegs)( \
    MCInst * MI, unsigned OpNum, SStream *O) \
  { \
    add_cs_detail(MI, CONCAT(ARM_OP_GROUP_MVEVectorList, NumRegs), \
            OpNum, NumRegs); \
    unsigned Reg = \
      MCOperand_getReg(MCInst_getOperand(MI, (OpNum))); \
    const char *Prefix = "{"; \
    for (unsigned i = 0; i < NumRegs; i++) { \
      SStream_concat0(O, Prefix); \
      printRegName( \
        O, MCRegisterInfo_getSubReg(MI->MRI, Reg, \
                  ARM_qsub_0 + i)); \
      Prefix = ", "; \
    } \
    SStream_concat0(O, "}"); \
  }
DEFINE_printMVEVectorList(2) DEFINE_printMVEVectorList(4)

#define DEFINE_printComplexRotationOp(Angle, Remainder) \
  static inline void CONCAT(printComplexRotationOp, \
          CONCAT(Angle, Remainder))( \
    MCInst * MI, unsigned OpNo, SStream *O) \
  { \
    add_cs_detail( \
      MI, \
      CONCAT(CONCAT(ARM_OP_GROUP_ComplexRotationOp, Angle), \
             Remainder), \
      OpNo, Angle, Remainder); \
    unsigned Val = \
      MCOperand_getImm(MCInst_getOperand(MI, (OpNo))); \
    SStream_concat(O, "#%d", (Val * Angle) + Remainder); \
  }
  DEFINE_printComplexRotationOp(90, 0) DEFINE_printComplexRotationOp(180,
                     90)

    static inline void printVPTPredicateOperand(MCInst *MI,
                  unsigned OpNum,
                  SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VPTPredicateOperand, OpNum);
  ARMVCC_VPTCodes CC = (ARMVCC_VPTCodes)MCOperand_getImm(
    MCInst_getOperand(MI, (OpNum)));
  if (CC != ARMVCC_None)
    SStream_concat0(O, ARMVPTPredToString(CC));
}

static inline void printVPTMask(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_VPTMask, OpNum);
  // (3 - the number of trailing zeroes) is the number of them / else.
  unsigned Mask = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));
  unsigned NumTZ = CountTrailingZeros_32(Mask);

  for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
    bool T = ((Mask >> Pos) & 1) == 0;
    if (T)
      SStream_concat0(O, "t");

    else
      SStream_concat0(O, "e");
  }
}

static inline void printMveSaturateOp(MCInst *MI, unsigned OpNum, SStream *O)
{
  add_cs_detail(MI, ARM_OP_GROUP_MveSaturateOp, OpNum);
  uint32_t Val = MCOperand_getImm(MCInst_getOperand(MI, (OpNum)));

  printUInt32Bang(O, (Val == 1 ? 48 : 64));
}

#define PRINT_ALIAS_INSTR
#include "ARMGenAsmWriter.inc"

static void printInst(MCInst *MI, SStream *O, void *info)
{
  bool isAlias = false;
  bool useAliasDetails = map_use_alias_details(MI);
  map_set_fill_detail_ops(MI, useAliasDetails);
  unsigned Opcode = MCInst_getOpcode(MI);
  uint64_t Address = MI->address;

  switch (Opcode) {
  // Check for MOVs and print canonical forms, instead.
  case ARM_MOVsr: {
    isAlias = true;
    MCInst_setIsAlias(MI, isAlias);
    // FIXME: Thumb variants?
    MCOperand *MO3 = MCInst_getOperand(MI, (3));

    SStream_concat1(O, ' ');
    SStream_concat0(O, ARM_AM_getShiftOpcStr(ARM_AM_getSORegShOp(
             MCOperand_getImm(MO3))));
    printSBitModifierOperand(MI, 6, O);
    printPredicateOperand(MI, 4, O);

    SStream_concat0(O, " ");

    printOperand(MI, 0, O);
    SStream_concat0(O, ", ");
    printOperand(MI, 1, O);

    SStream_concat0(O, ", ");
    printOperand(MI, 2, O);

    if (useAliasDetails)
      return;
    else
      goto add_real_detail;
  }

  case ARM_MOVsi: {
    isAlias = true;
    MCInst_setIsAlias(MI, isAlias);
    // FIXME: Thumb variants?
    MCOperand *MO2 = MCInst_getOperand(MI, (2));

    SStream_concat0(O, ARM_AM_getShiftOpcStr(ARM_AM_getSORegShOp(
             MCOperand_getImm(MO2))));
    printSBitModifierOperand(MI, 5, O);
    printPredicateOperand(MI, 3, O);

    SStream_concat0(O, " ");

    printOperand(MI, 0, O);
    SStream_concat0(O, ", ");
    printOperand(MI, 1, O);

    if (ARM_AM_getSORegShOp(MCOperand_getImm(MO2)) == ARM_AM_rrx) {
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    }

    SStream_concat(O, "%s%s%s%d", ", ", markup("<imm:"), "#",
             translateShiftImm(ARM_AM_getSORegOffset(
               MCOperand_getImm(MO2))));
    SStream_concat0(O, markup(">"));
    if (useAliasDetails)
      return;
    else
      goto add_real_detail;
  }

  // A8.6.123 PUSH
  case ARM_STMDB_UPD:
  case ARM_t2STMDB_UPD:
    if (MCOperand_getReg(MCInst_getOperand(MI, (0))) == ARM_SP &&
        MCInst_getNumOperands(MI) > 5) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      // Should only print PUSH if there are at least two registers in the
      // list.
      SStream_concat0(O, "push");
      printPredicateOperand(MI, 2, O);
      if (Opcode == ARM_t2STMDB_UPD)
        SStream_concat0(O, ".w");
      SStream_concat0(O, " ");

      printRegisterList(MI, 4, O);
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  case ARM_STR_PRE_IMM:
    if (MCOperand_getReg(MCInst_getOperand(MI, (2))) == ARM_SP &&
        MCOperand_getImm(MCInst_getOperand(MI, (3))) == -4) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      SStream_concat1(O, ' ');
      SStream_concat0(O, "push");
      printPredicateOperand(MI, 4, O);
      SStream_concat0(O, " {");
      printOperand(MI, 1, O);
      SStream_concat0(O, "}");
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  // A8.6.122 POP
  case ARM_LDMIA_UPD:
  case ARM_t2LDMIA_UPD:
    if (MCOperand_getReg(MCInst_getOperand(MI, (0))) == ARM_SP &&
        MCInst_getNumOperands(MI) > 5) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      // Should only print POP if there are at least two registers in the
      // list.
      SStream_concat0(O, "pop");
      printPredicateOperand(MI, 2, O);
      if (Opcode == ARM_t2LDMIA_UPD)
        SStream_concat0(O, ".w");
      SStream_concat0(O, " ");

      printRegisterList(MI, 4, O);
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  case ARM_LDR_POST_IMM:
    if ((MCOperand_getReg(MCInst_getOperand(MI, (2))) == ARM_SP) &&
        ((ARM_AM_getAM2Offset(MCOperand_getImm(
            MCInst_getOperand(MI, (4)))) == 4))) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      SStream_concat0(O, "pop");
      printPredicateOperand(MI, 5, O);
      SStream_concat0(O, " {");
      printOperand(MI, 0, O);
      SStream_concat0(O, "}");
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;
  case ARM_t2LDR_POST:
    if ((MCOperand_getReg(MCInst_getOperand(MI, (2))) == ARM_SP) &&
        (Opcode == ARM_t2LDR_POST &&
         (MCOperand_getImm(MCInst_getOperand(MI, (3))) == 4))) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      SStream_concat0(O, "pop");
      printPredicateOperand(MI, 4, O);
      SStream_concat0(O, " {");
      printOperand(MI, 0, O);
      SStream_concat0(O, "}");
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  // A8.6.355 VPUSH
  case ARM_VSTMSDB_UPD:
  case ARM_VSTMDDB_UPD:
    if (MCOperand_getReg(MCInst_getOperand(MI, (0))) == ARM_SP) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      SStream_concat0(O, "vpush");
      printPredicateOperand(MI, 2, O);
      SStream_concat0(O, " ");

      printRegisterList(MI, 4, O);
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  // A8.6.354 VPOP
  case ARM_VLDMSIA_UPD:
  case ARM_VLDMDIA_UPD:
    if (MCOperand_getReg(MCInst_getOperand(MI, (0))) == ARM_SP) {
      isAlias = true;
      MCInst_setIsAlias(MI, isAlias);
      SStream_concat1(O, ' ');
      SStream_concat0(O, "vpop");
      printPredicateOperand(MI, 2, O);
      SStream_concat0(O, " ");

      printRegisterList(MI, 4, O);
      if (useAliasDetails)
        return;
      else
        goto add_real_detail;
    } else
      break;

  case ARM_tLDMIA: {
    isAlias = true;
    MCInst_setIsAlias(MI, isAlias);
    bool Writeback = true;
    unsigned BaseReg = MCOperand_getReg(MCInst_getOperand(MI, (0)));
    for (unsigned i = 3; i < MCInst_getNumOperands(MI); ++i) {
      if (MCOperand_getReg(MCInst_getOperand(MI, (i))) ==
          BaseReg)
        Writeback = false;
    }

    SStream_concat0(O, "ldm");

    printPredicateOperand(MI, 1, O);
    SStream_concat0(O, " ");

    printOperand(MI, 0, O);
    if (Writeback) {
      SStream_concat0(O, "!");
    }
    SStream_concat0(O, ", ");
    printRegisterList(MI, 3, O);
    if (useAliasDetails)
      return;
    else
      goto add_real_detail;
  }

  // Combine 2 GPRs from disassember into a GPRPair to match with instr def.
  // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
  // a single GPRPair reg operand is used in the .td file to replace the two
  // GPRs. However, when decoding them, the two GRPs cannot be automatically
  // expressed as a GPRPair, so we have to manually merge them.
  // FIXME: We would really like to be able to tablegen'erate this.
  case ARM_LDREXD:
  case ARM_STREXD:
  case ARM_LDAEXD:
  case ARM_STLEXD: {
    const MCRegisterClass *MRC =
      MCRegisterInfo_getRegClass(MI->MRI, ARM_GPRRegClassID);
    bool isStore = Opcode == ARM_STREXD || Opcode == ARM_STLEXD;
    unsigned Reg = MCOperand_getReg(
      MCInst_getOperand(MI, isStore ? 1 : 0));

    if (MCRegisterClass_contains(MRC, Reg)) {
      MCInst NewMI;

      MCInst_Init(&NewMI, CS_ARCH_ARM);
      MCInst_setOpcode(&NewMI, Opcode);

      if (isStore)
        MCInst_addOperand2(&NewMI,
               MCInst_getOperand(MI, 0));

      MCOperand_CreateReg0(
        &NewMI,
        MCRegisterInfo_getMatchingSuperReg(
          MI->MRI, Reg, ARM_gsub_0,
          MCRegisterInfo_getRegClass(
            MI->MRI,
            ARM_GPRPairRegClassID)));

      // Copy the rest operands into NewMI.
      for (unsigned i = isStore ? 3 : 2;
           i < MCInst_getNumOperands(MI); ++i)
        MCInst_addOperand2(&NewMI,
               MCInst_getOperand(MI, i));

      printInstruction(&NewMI, Address, O);
      return;
    }
    break;
  }
  case ARM_TSB:
  case ARM_t2TSB:
    isAlias = true;
    MCInst_setIsAlias(MI, isAlias);

    SStream_concat0(O, " tsb csync");
    if (useAliasDetails)
      return;
    else
      goto add_real_detail;
  case ARM_t2DSB:
    isAlias = true;
    MCInst_setIsAlias(MI, isAlias);

    switch (MCOperand_getImm(MCInst_getOperand(MI, (0)))) {
    default:
      if (!printAliasInstr(MI, Address, O))
        printInstruction(MI, Address, O);
      break;
    case 0:
      SStream_concat0(O, " ssbb");
      break;
    case 4:
      SStream_concat0(O, " pssbb");
      break;
    };
    if (useAliasDetails)
      return;
    else
      goto add_real_detail;
  }

  if (!isAlias)
    isAlias |= printAliasInstr(MI, Address, O);

add_real_detail:
  MCInst_setIsAlias(MI, isAlias);
  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);
  }
}

const char *ARM_LLVM_getRegisterName(unsigned RegNo, unsigned AltIdx)
{
  return getRegisterName(RegNo, AltIdx);
}

void ARM_LLVM_printInstruction(MCInst *MI, SStream *O,
             void * /* MCRegisterInfo* */ info)
{
  printInst(MI, O, info);
}

Coverage Report

Created: 2025-07-11 06:32