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      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_rot_i32
     49 #define TCG_TARGET_HAS_ext8s_i32
     50 #define TCG_TARGET_HAS_ext16s_i32
     51 #define TCG_TARGET_HAS_ext8u_i32
     52 #define TCG_TARGET_HAS_ext16u_i32
     53 #define TCG_TARGET_HAS_bswap16_i32
     54 #define TCG_TARGET_HAS_bswap32_i32
     55 #define TCG_TARGET_HAS_neg_i32
     56 #define TCG_TARGET_HAS_not_i32
     57 // #define TCG_TARGET_HAS_andc_i32
     58 // #define TCG_TARGET_HAS_orc_i32
     59 
     60 #define TCG_TARGET_HAS_GUEST_BASE
     61 
     62 /* Note: must be synced with dyngen-exec.h */
     63 #define TCG_AREG0 TCG_REG_EBP
     64 #define TCG_AREG1 TCG_REG_EBX
     65 #define TCG_AREG2 TCG_REG_ESI
     66 
     67 static inline void flush_icache_range(unsigned long start, unsigned long stop)
     68 {
     69 }
     70