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_PPC 1

    25 

    26 #define TCG_TARGET_REG_BITS 32

    27 #define TCG_TARGET_WORDS_BIGENDIAN

    28 #define TCG_TARGET_NB_REGS 32

    29 

    30 enum {

    31     TCG_REG_R0 = 0,

    32     TCG_REG_R1,

    33     TCG_REG_R2,

    34     TCG_REG_R3,

    35     TCG_REG_R4,

    36     TCG_REG_R5,

    37     TCG_REG_R6,

    38     TCG_REG_R7,

    39     TCG_REG_R8,

    40     TCG_REG_R9,

    41     TCG_REG_R10,

    42     TCG_REG_R11,

    43     TCG_REG_R12,

    44     TCG_REG_R13,

    45     TCG_REG_R14,

    46     TCG_REG_R15,

    47     TCG_REG_R16,

    48     TCG_REG_R17,

    49     TCG_REG_R18,

    50     TCG_REG_R19,

    51     TCG_REG_R20,

    52     TCG_REG_R21,

    53     TCG_REG_R22,

    54     TCG_REG_R23,

    55     TCG_REG_R24,

    56     TCG_REG_R25,

    57     TCG_REG_R26,

    58     TCG_REG_R27,

    59     TCG_REG_R28,

    60     TCG_REG_R29,

    61     TCG_REG_R30,

    62     TCG_REG_R31

    63 };

    64 

    65 /* used for function call generation */

    66 #define TCG_REG_CALL_STACK TCG_REG_R1

    67 #define TCG_TARGET_STACK_ALIGN 16

    68 #if defined __APPLE__

    69 #define TCG_TARGET_CALL_STACK_OFFSET 24

    70 #elif defined _AIX

    71 #define TCG_TARGET_CALL_STACK_OFFSET 52

    72 #elif defined __linux__

    73 #define TCG_TARGET_CALL_ALIGN_ARGS 1

    74 #define TCG_TARGET_CALL_STACK_OFFSET 8

    75 #else

    76 #error Unsupported system

    77 #endif

    78 

    79 /* optional instructions */

    80 #define TCG_TARGET_HAS_neg_i32

    81 #define TCG_TARGET_HAS_div_i32

    82 #define TCG_TARGET_HAS_ext8s_i32

    83 #define TCG_TARGET_HAS_ext16s_i32

    84 

    85 #define TCG_AREG0 TCG_REG_R27

    86 #define TCG_AREG1 TCG_REG_R24

    87 #define TCG_AREG2 TCG_REG_R25

    88 #define TCG_AREG3 TCG_REG_R26