Archipelago » qemu

/*

 * Tiny Code Generator for QEMU

 *

 * Copyright (c) 2008 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#define TCG_TARGET_SPARC 1

#if defined(__sparc_v9__) && !defined(__sparc_v8plus__)

#define TCG_TARGET_REG_BITS 64

#else

#define TCG_TARGET_REG_BITS 32

#endif

#define TCG_TARGET_WORDS_BIGENDIAN

#define TCG_TARGET_NB_REGS 32

enum {

    TCG_REG_G0 = 0,

    TCG_REG_G1,

    TCG_REG_G2,

    TCG_REG_G3,

    TCG_REG_G4,

    TCG_REG_G5,

    TCG_REG_G6,

    TCG_REG_G7,

    TCG_REG_O0,

    TCG_REG_O1,

    TCG_REG_O2,

    TCG_REG_O3,

    TCG_REG_O4,

    TCG_REG_O5,

    TCG_REG_O6,

    TCG_REG_O7,

    TCG_REG_L0,

    TCG_REG_L1,

    TCG_REG_L2,

    TCG_REG_L3,

    TCG_REG_L4,

    TCG_REG_L5,

    TCG_REG_L6,

    TCG_REG_L7,

    TCG_REG_I0,

    TCG_REG_I1,

    TCG_REG_I2,

    TCG_REG_I3,

    TCG_REG_I4,

    TCG_REG_I5,

    TCG_REG_I6,

    TCG_REG_I7,

};

#define TCG_CT_CONST_S11 0x100

#define TCG_CT_CONST_S13 0x200

/* used for function call generation */

#define TCG_REG_CALL_STACK TCG_REG_I6

#ifdef __arch64__

// Reserve space for AREG0

#define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \

                                   TCG_STATIC_CALL_ARGS_SIZE)

#define TCG_TARGET_CALL_STACK_OFFSET (2047 - 16)

#define TCG_TARGET_STACK_ALIGN 16

#else

// AREG0 + one word for alignment

#define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long) + \

                                   TCG_STATIC_CALL_ARGS_SIZE)

#define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME

#define TCG_TARGET_STACK_ALIGN 8

#endif

/* optional instructions */

#define TCG_TARGET_HAS_div_i32

#define TCG_TARGET_HAS_div_i64

#if TCG_TARGET_REG_BITS == 64

#define TCG_TARGET_HAS_ext32s_i64

#define TCG_TARGET_HAS_ext32u_i64

#endif

//#define TCG_TARGET_HAS_bswap32_i32

//#define TCG_TARGET_HAS_bswap64_i64

//#define TCG_TARGET_HAS_neg_i32

//#define TCG_TARGET_HAS_neg_i64

/* Note: must be synced with dyngen-exec.h and Makefile.target */

#ifdef CONFIG_SOLARIS

#define TCG_AREG0 TCG_REG_G2

#define TCG_AREG1 TCG_REG_G3

#define TCG_AREG2 TCG_REG_G4

#elif defined(__sparc_v9__)

#define TCG_AREG0 TCG_REG_G5

#define TCG_AREG1 TCG_REG_G6

#define TCG_AREG2 TCG_REG_G7

#else

#define TCG_AREG0 TCG_REG_G6

#define TCG_AREG1 TCG_REG_G1

#define TCG_AREG2 TCG_REG_G2

#endif

static inline void flush_icache_range(unsigned long start, unsigned long stop)

{

    unsigned long p;

    p = start & ~(8UL - 1UL);

    stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);

    for (; p < stop; p += 8)

        __asm__ __volatile__("flush\t%0" : : "r" (p));

}