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 #define TCG_TARGET_REG_BITS 32
  27 //#define TCG_TARGET_WORDS_BIGENDIAN
  28
  29 #define TCG_TARGET_NB_REGS 8
  30
  31 enum {
  32     TCG_REG_EAX = 0,
  33     TCG_REG_ECX,
  34     TCG_REG_EDX,
  35     TCG_REG_EBX,
  36     TCG_REG_ESP,
  37     TCG_REG_EBP,
  38     TCG_REG_ESI,
  39     TCG_REG_EDI,
  40 };
  41
  42 /* used for function call generation */
  43 #define TCG_REG_CALL_STACK TCG_REG_ESP
  44 #define TCG_TARGET_STACK_ALIGN 16
  45 #define TCG_TARGET_CALL_STACK_OFFSET 0
  46
  47 /* optional instructions */
  48 #define TCG_TARGET_HAS_bswap16_i32
  49 #define TCG_TARGET_HAS_bswap32_i32
  50 #define TCG_TARGET_HAS_neg_i32
  51 #define TCG_TARGET_HAS_not_i32
  52 #define TCG_TARGET_HAS_ext8s_i32
  53 #define TCG_TARGET_HAS_ext16s_i32
  54 #define TCG_TARGET_HAS_rot_i32
  55 #define TCG_TARGET_HAS_ext8u_i32
  56 #define TCG_TARGET_HAS_ext16u_i32
  57
  58 #define TCG_TARGET_HAS_GUEST_BASE
  59
  60 /* Note: must be synced with dyngen-exec.h */
  61 #define TCG_AREG0 TCG_REG_EBP
  62 #define TCG_AREG1 TCG_REG_EBX
  63 #define TCG_AREG2 TCG_REG_ESI
  64
  65 static inline void flush_icache_range(unsigned long start, unsigned long stop)
  66 {
  67 }