LXR qemu/tcg/i386/tcg-target.h

   1/*
   2 * Tiny Code Generator for QEMU
   3 *
   4 * Copyright (c) 2008 Fabrice Bellard
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24#ifndef TCG_TARGET_I386 
  25#define TCG_TARGET_I386 1
  26
  27#define TCG_TARGET_INSN_UNIT_SIZE  1
  28#define TCG_TARGET_TLB_DISPLACEMENT_BITS 31
  29
  30#ifdef __x86_64__
  31# define TCG_TARGET_REG_BITS  64
  32# define TCG_TARGET_NB_REGS   16
  33#else
  34# define TCG_TARGET_REG_BITS  32
  35# define TCG_TARGET_NB_REGS    8
  36#endif
  37
  38typedef enum {
  39    TCG_REG_EAX = 0,
  40    TCG_REG_ECX,
  41    TCG_REG_EDX,
  42    TCG_REG_EBX,
  43    TCG_REG_ESP,
  44    TCG_REG_EBP,
  45    TCG_REG_ESI,
  46    TCG_REG_EDI,
  47
  48    /* 64-bit registers; always define the symbols to avoid
  49       too much if-deffing.  */
  50    TCG_REG_R8,
  51    TCG_REG_R9,
  52    TCG_REG_R10,
  53    TCG_REG_R11,
  54    TCG_REG_R12,
  55    TCG_REG_R13,
  56    TCG_REG_R14,
  57    TCG_REG_R15,
  58    TCG_REG_RAX = TCG_REG_EAX,
  59    TCG_REG_RCX = TCG_REG_ECX,
  60    TCG_REG_RDX = TCG_REG_EDX,
  61    TCG_REG_RBX = TCG_REG_EBX,
  62    TCG_REG_RSP = TCG_REG_ESP,
  63    TCG_REG_RBP = TCG_REG_EBP,
  64    TCG_REG_RSI = TCG_REG_ESI,
  65    TCG_REG_RDI = TCG_REG_EDI,
  66} TCGReg;
  67
  68/* used for function call generation */
  69#define TCG_REG_CALL_STACK TCG_REG_ESP 
  70#define TCG_TARGET_STACK_ALIGN 16
  71#if defined(_WIN64)
  72#define TCG_TARGET_CALL_STACK_OFFSET 32
  73#else
  74#define TCG_TARGET_CALL_STACK_OFFSET 0
  75#endif
  76
  77extern bool have_bmi1;
  78
  79/* optional instructions */
  80#define TCG_TARGET_HAS_div2_i32         1
  81#define TCG_TARGET_HAS_rot_i32          1
  82#define TCG_TARGET_HAS_ext8s_i32        1
  83#define TCG_TARGET_HAS_ext16s_i32       1
  84#define TCG_TARGET_HAS_ext8u_i32        1
  85#define TCG_TARGET_HAS_ext16u_i32       1
  86#define TCG_TARGET_HAS_bswap16_i32      1
  87#define TCG_TARGET_HAS_bswap32_i32      1
  88#define TCG_TARGET_HAS_neg_i32          1
  89#define TCG_TARGET_HAS_not_i32          1
  90#define TCG_TARGET_HAS_andc_i32         have_bmi1
  91#define TCG_TARGET_HAS_orc_i32          0
  92#define TCG_TARGET_HAS_eqv_i32          0
  93#define TCG_TARGET_HAS_nand_i32         0
  94#define TCG_TARGET_HAS_nor_i32          0
  95#define TCG_TARGET_HAS_deposit_i32      1
  96#define TCG_TARGET_HAS_movcond_i32      1
  97#define TCG_TARGET_HAS_add2_i32         1
  98#define TCG_TARGET_HAS_sub2_i32         1
  99#define TCG_TARGET_HAS_mulu2_i32        1
 100#define TCG_TARGET_HAS_muls2_i32        1
 101#define TCG_TARGET_HAS_muluh_i32        0
 102#define TCG_TARGET_HAS_mulsh_i32        0
 103
 104#if TCG_TARGET_REG_BITS == 64
 105#define TCG_TARGET_HAS_extrl_i64_i32    0
 106#define TCG_TARGET_HAS_extrh_i64_i32    0
 107#define TCG_TARGET_HAS_div2_i64         1
 108#define TCG_TARGET_HAS_rot_i64          1
 109#define TCG_TARGET_HAS_ext8s_i64        1
 110#define TCG_TARGET_HAS_ext16s_i64       1
 111#define TCG_TARGET_HAS_ext32s_i64       1
 112#define TCG_TARGET_HAS_ext8u_i64        1
 113#define TCG_TARGET_HAS_ext16u_i64       1
 114#define TCG_TARGET_HAS_ext32u_i64       1
 115#define TCG_TARGET_HAS_bswap16_i64      1
 116#define TCG_TARGET_HAS_bswap32_i64      1
 117#define TCG_TARGET_HAS_bswap64_i64      1
 118#define TCG_TARGET_HAS_neg_i64          1
 119#define TCG_TARGET_HAS_not_i64          1
 120#define TCG_TARGET_HAS_andc_i64         have_bmi1
 121#define TCG_TARGET_HAS_orc_i64          0
 122#define TCG_TARGET_HAS_eqv_i64          0
 123#define TCG_TARGET_HAS_nand_i64         0
 124#define TCG_TARGET_HAS_nor_i64          0
 125#define TCG_TARGET_HAS_deposit_i64      1
 126#define TCG_TARGET_HAS_movcond_i64      1
 127#define TCG_TARGET_HAS_add2_i64         1
 128#define TCG_TARGET_HAS_sub2_i64         1
 129#define TCG_TARGET_HAS_mulu2_i64        1
 130#define TCG_TARGET_HAS_muls2_i64        1
 131#define TCG_TARGET_HAS_muluh_i64        0
 132#define TCG_TARGET_HAS_mulsh_i64        0
 133#endif
 134
 135#define TCG_TARGET_deposit_i32_valid(ofs, len) \
 136    (((ofs) == 0 && (len) == 8) || ((ofs) == 8 && (len) == 8) || \
 137     ((ofs) == 0 && (len) == 16))
 138#define TCG_TARGET_deposit_i64_valid    TCG_TARGET_deposit_i32_valid
 139
 140#if TCG_TARGET_REG_BITS == 64
 141# define TCG_AREG0 TCG_REG_R14
 142#else
 143# define TCG_AREG0 TCG_REG_EBP
 144#endif
 145
 146static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
 147{
 148}
 149
 150#endif
 151