text: /*
   *  i386 micro operations (included several times to generate
   *  different operand sizes)
   *
   *  Copyright (c) 2003 Fabrice Bellard
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  #define DATA_BITS (1 << (3 + SHIFT))
  #define SHIFT_MASK (DATA_BITS - 1)
  #define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1))
  #if DATA_BITS <= 32
  #define SHIFT1_MASK 0x1f
  #else
  #define SHIFT1_MASK 0x3f
  #endif
  
  #if DATA_BITS == 8
  #define SUFFIX b
  #define DATA_TYPE uint8_t
  #define DATA_STYPE int8_t
  #define DATA_MASK 0xff
  #elif DATA_BITS == 16
  #define SUFFIX w
  #define DATA_TYPE uint16_t
  #define DATA_STYPE int16_t
  #define DATA_MASK 0xffff
  #elif DATA_BITS == 32
  #define SUFFIX l
  #define DATA_TYPE uint32_t
  #define DATA_STYPE int32_t
  #define DATA_MASK 0xffffffff
  #elif DATA_BITS == 64
  #define SUFFIX q
  #define DATA_TYPE uint64_t
  #define DATA_STYPE int64_t
  #define DATA_MASK 0xffffffffffffffffULL
  #else
  #error unhandled operand size
  #endif
  
  /* dynamic flags computation */
  
  static int glue(compute_all_add, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_SRC;
      src2 = CC_DST - CC_SRC;
      cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_add, SUFFIX)(void)
  {
      int cf;
      target_long src1;
      src1 = CC_SRC;
      cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;
      return cf;
  }
  
  static int glue(compute_all_adc, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_SRC;
      src2 = CC_DST - CC_SRC - 1;
      cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_adc, SUFFIX)(void)
  {
      int cf;
      target_long src1;
      src1 = CC_SRC;
      cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;
      return cf;
  }
  
  static int glue(compute_all_sub, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
      cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_sub, SUFFIX)(void)
  {
      int cf;
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
      cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;
      return cf;
  }
  
  static int glue(compute_all_sbb, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_DST + CC_SRC + 1;
      src2 = CC_SRC;
      cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_sbb, SUFFIX)(void)
  {
      int cf;
      target_long src1, src2;
      src1 = CC_DST + CC_SRC + 1;
      src2 = CC_SRC;
      cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;
      return cf;
  }
  
  static int glue(compute_all_logic, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      cf = 0;
      pf = parity_table[(uint8_t)CC_DST];
      af = 0;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = 0;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_logic, SUFFIX)(void)
  {
      return 0;
  }
  
  static int glue(compute_all_inc, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_DST - 1;
      src2 = 1;
      cf = CC_SRC;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;
      return cf | pf | af | zf | sf | of;
  }
  
  #if DATA_BITS == 32
  static int glue(compute_c_inc, SUFFIX)(void)
  {
      return CC_SRC;
  }
  #endif
  
  static int glue(compute_all_dec, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      target_long src1, src2;
      src1 = CC_DST + 1;
      src2 = 1;
      cf = CC_SRC;
      pf = parity_table[(uint8_t)CC_DST];
      af = (CC_DST ^ src1 ^ src2) & 0x10;
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_all_shl, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;
      pf = parity_table[(uint8_t)CC_DST];
      af = 0; /* undefined */
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      /* of is defined if shift count == 1 */
      of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  static int glue(compute_c_shl, SUFFIX)(void)
  {
      return (CC_SRC >> (DATA_BITS - 1)) & CC_C;
  }
  
  #if DATA_BITS == 32
  static int glue(compute_c_sar, SUFFIX)(void)
  {
      return CC_SRC & 1;
  }
  #endif
  
  static int glue(compute_all_sar, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      cf = CC_SRC & 1;
      pf = parity_table[(uint8_t)CC_DST];
      af = 0; /* undefined */
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      /* of is defined if shift count == 1 */
      of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;
      return cf | pf | af | zf | sf | of;
  }
  
  #if DATA_BITS == 32
  static int glue(compute_c_mul, SUFFIX)(void)
  {
      int cf;
      cf = (CC_SRC != 0);
      return cf;
  }
  #endif
  
  /* NOTE: we compute the flags like the P4. On olders CPUs, only OF and
     CF are modified and it is slower to do that. */
  static int glue(compute_all_mul, SUFFIX)(void)
  {
      int cf, pf, af, zf, sf, of;
      cf = (CC_SRC != 0);
      pf = parity_table[(uint8_t)CC_DST];
      af = 0; /* undefined */
      zf = ((DATA_TYPE)CC_DST == 0) << 6;
      sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;
      of = cf << 11;
      return cf | pf | af | zf | sf | of;
  }
  
  /* various optimized jumps cases */
  
  void OPPROTO glue(op_jb_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jz_sub, SUFFIX)(void)
  {
      if ((DATA_TYPE)CC_DST == 0)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jnz_sub, SUFFIX)(void)
  {
      if ((DATA_TYPE)CC_DST != 0)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jbe_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_js_sub, SUFFIX)(void)
  {
      if (CC_DST & SIGN_MASK)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jl_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jle_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  /* oldies */
  
  #if DATA_BITS >= 16
  
  void OPPROTO glue(op_loopnz, SUFFIX)(void)
  {
      if ((DATA_TYPE)ECX != 0 && !(T0 & CC_Z))
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_loopz, SUFFIX)(void)
  {
      if ((DATA_TYPE)ECX != 0 && (T0 & CC_Z))
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jz_ecx, SUFFIX)(void)
  {
      if ((DATA_TYPE)ECX == 0)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  void OPPROTO glue(op_jnz_ecx, SUFFIX)(void)
  {
      if ((DATA_TYPE)ECX != 0)
          GOTO_LABEL_PARAM(1);
      FORCE_RET();
  }
  
  #endif
  
  /* various optimized set cases */
  
  void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2);
  }
  
  void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void)
  {
      T0 = ((DATA_TYPE)CC_DST == 0);
  }
  
  void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2);
  }
  
  void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void)
  {
      T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1;
  }
  
  void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2);
  }
  
  void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void)
  {
      target_long src1, src2;
      src1 = CC_DST + CC_SRC;
      src2 = CC_SRC;
  
      T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2);
  }
  
  /* shifts */
  
  void OPPROTO glue(glue(op_shl, SUFFIX), _T0_T1)(void)
  {
      int count;
      count = T1 & SHIFT1_MASK;
      T0 = T0 << count;
      FORCE_RET();
  }
  
  void OPPROTO glue(glue(op_shr, SUFFIX), _T0_T1)(void)
  {
      int count;
      count = T1 & SHIFT1_MASK;
      T0 &= DATA_MASK;
      T0 = T0 >> count;
      FORCE_RET();
  }
  
  void OPPROTO glue(glue(op_sar, SUFFIX), _T0_T1)(void)
  {
      int count;
      target_long src;
  
      count = T1 & SHIFT1_MASK;
      src = (DATA_STYPE)T0;
      T0 = src >> count;
      FORCE_RET();
  }
  
  #undef MEM_WRITE
  #include "ops_template_mem.h"
  
  #define MEM_WRITE 0
  #include "ops_template_mem.h"
  
  #if !defined(CONFIG_USER_ONLY)
  #define MEM_WRITE 1
  #include "ops_template_mem.h"
  
  #define MEM_WRITE 2
  #include "ops_template_mem.h"
  #endif
  
  /* bit operations */
  #if DATA_BITS >= 16
  
  void OPPROTO glue(glue(op_bt, SUFFIX), _T0_T1_cc)(void)
  {
      int count;
      count = T1 & SHIFT_MASK;
      CC_SRC = T0 >> count;
  }
  
  void OPPROTO glue(glue(op_bts, SUFFIX), _T0_T1_cc)(void)
  {
      int count;
      count = T1 & SHIFT_MASK;
      T1 = T0 >> count;
      T0 |= (((target_long)1) << count);
  }
  
  void OPPROTO glue(glue(op_btr, SUFFIX), _T0_T1_cc)(void)
  {
      int count;
      count = T1 & SHIFT_MASK;
      T1 = T0 >> count;
      T0 &= ~(((target_long)1) << count);
  }
  
  void OPPROTO glue(glue(op_btc, SUFFIX), _T0_T1_cc)(void)
  {
      int count;
      count = T1 & SHIFT_MASK;
      T1 = T0 >> count;
      T0 ^= (((target_long)1) << count);
  }
  
  void OPPROTO glue(glue(op_add_bit, SUFFIX), _A0_T1)(void)
  {
      A0 += ((DATA_STYPE)T1 >> (3 + SHIFT)) << SHIFT;
  }
  
  void OPPROTO glue(glue(op_bsf, SUFFIX), _T0_cc)(void)
  {
      int count;
      target_long res;
  
      res = T0 & DATA_MASK;
      if (res != 0) {
          count = 0;
          while ((res & 1) == 0) {
              count++;
              res >>= 1;
          }
          T1 = count;
          CC_DST = 1; /* ZF = 0 */
      } else {
          CC_DST = 0; /* ZF = 1 */
      }
      FORCE_RET();
  }
  
  void OPPROTO glue(glue(op_bsr, SUFFIX), _T0_cc)(void)
  {
      int count;
      target_long res;
  
      res = T0 & DATA_MASK;
      if (res != 0) {
          count = DATA_BITS - 1;
          while ((res & SIGN_MASK) == 0) {
              count--;
              res <<= 1;
          }
          T1 = count;
          CC_DST = 1; /* ZF = 0 */
      } else {
          CC_DST = 0; /* ZF = 1 */
      }
      FORCE_RET();
  }
  
  #endif
  
  #if DATA_BITS == 32
  void OPPROTO op_update_bt_cc(void)
  {
      CC_SRC = T1;
  }
  #endif
  
  /* string operations */
  
  void OPPROTO glue(op_movl_T0_Dshift, SUFFIX)(void)
  {
      T0 = DF << SHIFT;
  }
  
  /* port I/O */
  #if DATA_BITS <= 32
  void OPPROTO glue(glue(op_out, SUFFIX), _T0_T1)(void)
  {
      glue(cpu_out, SUFFIX)(env, T0, T1 & DATA_MASK);
  }
  
  void OPPROTO glue(glue(op_in, SUFFIX), _T0_T1)(void)
  {
      T1 = glue(cpu_in, SUFFIX)(env, T0);
  }
  
  void OPPROTO glue(glue(op_in, SUFFIX), _DX_T0)(void)
  {
      T0 = glue(cpu_in, SUFFIX)(env, EDX & 0xffff);
  }
  
  void OPPROTO glue(glue(op_out, SUFFIX), _DX_T0)(void)
  {
      glue(cpu_out, SUFFIX)(env, EDX & 0xffff, T0);
  }
  
  void OPPROTO glue(glue(op_check_io, SUFFIX), _T0)(void)
  {
      glue(glue(check_io, SUFFIX), _T0)();
  }
  
  void OPPROTO glue(glue(op_check_io, SUFFIX), _DX)(void)
  {
      glue(glue(check_io, SUFFIX), _DX)();
  }
  #endif
  
  #undef DATA_BITS
  #undef SHIFT_MASK
  #undef SHIFT1_MASK
  #undef SIGN_MASK
  #undef DATA_TYPE
  #undef DATA_STYPE
  #undef DATA_MASK
  #undef SUFFIX
  