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 #define TCG_TARGET_I386 1
  25
  26 #if defined(__x86_64__)
  27 # define TCG_TARGET_REG_BITS 64
  28 #else
  29 # define TCG_TARGET_REG_BITS 32
  30 #endif
  31 //#define TCG_TARGET_WORDS_BIGENDIAN
  32
  33 #if TCG_TARGET_REG_BITS == 64
  34 # define TCG_TARGET_NB_REGS 16
  35 #else
  36 # define TCG_TARGET_NB_REGS 8
  37 #endif
  38
  39 enum {
  40     TCG_REG_EAX = 0,
  41     TCG_REG_ECX,
  42     TCG_REG_EDX,
  43     TCG_REG_EBX,
  44     TCG_REG_ESP,
  45     TCG_REG_EBP,
  46     TCG_REG_ESI,
  47     TCG_REG_EDI,
  48
  49     /* 64-bit registers; always define the symbols to avoid
  50        too much if-deffing.  */
  51     TCG_REG_R8,
  52     TCG_REG_R9,
  53     TCG_REG_R10,
  54     TCG_REG_R11,
  55     TCG_REG_R12,
  56     TCG_REG_R13,
  57     TCG_REG_R14,
  58     TCG_REG_R15,
  59     TCG_REG_RAX = TCG_REG_EAX,
  60     TCG_REG_RCX = TCG_REG_ECX,
  61     TCG_REG_RDX = TCG_REG_EDX,
  62     TCG_REG_RBX = TCG_REG_EBX,
  63     TCG_REG_RSP = TCG_REG_ESP,
  64     TCG_REG_RBP = TCG_REG_EBP,
  65     TCG_REG_RSI = TCG_REG_ESI,
  66     TCG_REG_RDI = TCG_REG_EDI,
  67 };
  68
  69 #define TCG_CT_CONST_S32 0x100
  70 #define TCG_CT_CONST_U32 0x200
  71
  72 /* used for function call generation */
  73 #define TCG_REG_CALL_STACK TCG_REG_ESP
  74 #define TCG_TARGET_STACK_ALIGN 16
  75 #define TCG_TARGET_CALL_STACK_OFFSET 0
  76
  77 /* optional instructions */
  78 #define TCG_TARGET_HAS_div2_i32
  79 #define TCG_TARGET_HAS_rot_i32
  80 #define TCG_TARGET_HAS_ext8s_i32
  81 #define TCG_TARGET_HAS_ext16s_i32
  82 #define TCG_TARGET_HAS_ext8u_i32
  83 #define TCG_TARGET_HAS_ext16u_i32
  84 #define TCG_TARGET_HAS_bswap16_i32
  85 #define TCG_TARGET_HAS_bswap32_i32
  86 #define TCG_TARGET_HAS_neg_i32
  87 #define TCG_TARGET_HAS_not_i32
  88 // #define TCG_TARGET_HAS_andc_i32
  89 // #define TCG_TARGET_HAS_orc_i32
  90 // #define TCG_TARGET_HAS_eqv_i32
  91 // #define TCG_TARGET_HAS_nand_i32
  92 // #define TCG_TARGET_HAS_nor_i32
  93
  94 #if TCG_TARGET_REG_BITS == 64
  95 #define TCG_TARGET_HAS_div2_i64
  96 #define TCG_TARGET_HAS_rot_i64
  97 #define TCG_TARGET_HAS_ext8s_i64
  98 #define TCG_TARGET_HAS_ext16s_i64
  99 #define TCG_TARGET_HAS_ext32s_i64
 100 #define TCG_TARGET_HAS_ext8u_i64
 101 #define TCG_TARGET_HAS_ext16u_i64
 102 #define TCG_TARGET_HAS_ext32u_i64
 103 #define TCG_TARGET_HAS_bswap16_i64
 104 #define TCG_TARGET_HAS_bswap32_i64
 105 #define TCG_TARGET_HAS_bswap64_i64
 106 #define TCG_TARGET_HAS_neg_i64
 107 #define TCG_TARGET_HAS_not_i64
 108 // #define TCG_TARGET_HAS_andc_i64
 109 // #define TCG_TARGET_HAS_orc_i64
 110 // #define TCG_TARGET_HAS_eqv_i64
 111 // #define TCG_TARGET_HAS_nand_i64
 112 // #define TCG_TARGET_HAS_nor_i64
 113 #endif
 114
 115 #define TCG_TARGET_HAS_GUEST_BASE
 116
 117 /* Note: must be synced with dyngen-exec.h */
 118 #if TCG_TARGET_REG_BITS == 64
 119 # define TCG_AREG0 TCG_REG_R14
 120 #else
 121 # define TCG_AREG0 TCG_REG_EBP
 122 #endif
 123
 124 static inline void flush_icache_range(unsigned long start, unsigned long stop)
 125 {
 126 }