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Annotation of qemu/tcg/sparc/tcg-target.h, revision 1.1

1.1     ! root        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_SPARC 1
        !            25: 
        !            26: #if defined(__sparc_v9__) && !defined(__sparc_v8plus__)
        !            27: #define TCG_TARGET_REG_BITS 64
        !            28: #else
        !            29: #define TCG_TARGET_REG_BITS 32
        !            30: #endif
        !            31: 
        !            32: #define TCG_TARGET_WORDS_BIGENDIAN
        !            33: 
        !            34: #define TCG_TARGET_NB_REGS 32
        !            35: 
        !            36: enum {
        !            37:     TCG_REG_G0 = 0,
        !            38:     TCG_REG_G1,
        !            39:     TCG_REG_G2,
        !            40:     TCG_REG_G3,
        !            41:     TCG_REG_G4,
        !            42:     TCG_REG_G5,
        !            43:     TCG_REG_G6,
        !            44:     TCG_REG_G7,
        !            45:     TCG_REG_O0,
        !            46:     TCG_REG_O1,
        !            47:     TCG_REG_O2,
        !            48:     TCG_REG_O3,
        !            49:     TCG_REG_O4,
        !            50:     TCG_REG_O5,
        !            51:     TCG_REG_O6,
        !            52:     TCG_REG_O7,
        !            53:     TCG_REG_L0,
        !            54:     TCG_REG_L1,
        !            55:     TCG_REG_L2,
        !            56:     TCG_REG_L3,
        !            57:     TCG_REG_L4,
        !            58:     TCG_REG_L5,
        !            59:     TCG_REG_L6,
        !            60:     TCG_REG_L7,
        !            61:     TCG_REG_I0,
        !            62:     TCG_REG_I1,
        !            63:     TCG_REG_I2,
        !            64:     TCG_REG_I3,
        !            65:     TCG_REG_I4,
        !            66:     TCG_REG_I5,
        !            67:     TCG_REG_I6,
        !            68:     TCG_REG_I7,
        !            69: };
        !            70: 
        !            71: #define TCG_CT_CONST_S11 0x100
        !            72: #define TCG_CT_CONST_S13 0x200
        !            73: 
        !            74: /* used for function call generation */
        !            75: #define TCG_REG_CALL_STACK TCG_REG_I6
        !            76: #ifdef __arch64__
        !            77: // Reserve space for AREG0
        !            78: #define TCG_TARGET_STACK_MINFRAME (176 + 2 * (int)sizeof(long))
        !            79: #define TCG_TARGET_CALL_STACK_OFFSET (2047 + TCG_TARGET_STACK_MINFRAME)
        !            80: #define TCG_TARGET_STACK_ALIGN 16
        !            81: #else
        !            82: // AREG0 + one word for alignment
        !            83: #define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long))
        !            84: #define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
        !            85: #define TCG_TARGET_STACK_ALIGN 8
        !            86: #endif
        !            87: 
        !            88: /* optional instructions */
        !            89: //#define TCG_TARGET_HAS_bswap_i32
        !            90: //#define TCG_TARGET_HAS_bswap_i64
        !            91: //#define TCG_TARGET_HAS_neg_i32
        !            92: //#define TCG_TARGET_HAS_neg_i64
        !            93: 
        !            94: 
        !            95: /* Note: must be synced with dyngen-exec.h and Makefile.target */
        !            96: #ifdef HOST_SOLARIS
        !            97: #define TCG_AREG0 TCG_REG_G2
        !            98: #define TCG_AREG1 TCG_REG_G3
        !            99: #define TCG_AREG2 TCG_REG_G4
        !           100: #define TCG_AREG3 TCG_REG_G5
        !           101: #define TCG_AREG4 TCG_REG_G6
        !           102: #elif defined(__sparc_v9__)
        !           103: #define TCG_AREG0 TCG_REG_G5
        !           104: #define TCG_AREG1 TCG_REG_G6
        !           105: #define TCG_AREG2 TCG_REG_G7
        !           106: #else
        !           107: #define TCG_AREG0 TCG_REG_G6
        !           108: #define TCG_AREG1 TCG_REG_G1
        !           109: #define TCG_AREG2 TCG_REG_G2
        !           110: #define TCG_AREG3 TCG_REG_G3
        !           111: #endif
        !           112: 
        !           113: static inline void flush_icache_range(unsigned long start, unsigned long stop)
        !           114: {
        !           115:     unsigned long p;
        !           116: 
        !           117:     p = start & ~(8UL - 1UL);
        !           118:     stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);
        !           119: 
        !           120:     for (; p < stop; p += 8)
        !           121:         __asm__ __volatile__("flush\t%0" : : "r" (p));
        !           122: }

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