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_HPPA 1

#if defined(_PA_RISC1_1)

#define TCG_TARGET_REG_BITS 32

#else

#error unsupported

#endif

#define TCG_TARGET_WORDS_BIGENDIAN

#define TCG_TARGET_NB_REGS 32

enum {

    TCG_REG_R0 = 0,

    TCG_REG_R1,

    TCG_REG_RP,

    TCG_REG_R3,

    TCG_REG_R4,

    TCG_REG_R5,

    TCG_REG_R6,

    TCG_REG_R7,

    TCG_REG_R8,

    TCG_REG_R9,

    TCG_REG_R10,

    TCG_REG_R11,

    TCG_REG_R12,

    TCG_REG_R13,

    TCG_REG_R14,

    TCG_REG_R15,

    TCG_REG_R16,

    TCG_REG_R17,

    TCG_REG_R18,

    TCG_REG_R19,

    TCG_REG_R20,

    TCG_REG_R21,

    TCG_REG_R22,

    TCG_REG_R23,

    TCG_REG_R24,

    TCG_REG_R25,

    TCG_REG_R26,

    TCG_REG_DP,

    TCG_REG_RET0,

    TCG_REG_RET1,

    TCG_REG_SP,

    TCG_REG_R31,

};

#define TCG_CT_CONST_0    0x0100

#define TCG_CT_CONST_S5   0x0200

#define TCG_CT_CONST_S11  0x0400

#define TCG_CT_CONST_MS11 0x0800

#define TCG_CT_CONST_AND  0x1000

#define TCG_CT_CONST_OR   0x2000

/* used for function call generation */

#define TCG_REG_CALL_STACK TCG_REG_SP

#define TCG_TARGET_STACK_ALIGN 64

#define TCG_TARGET_CALL_STACK_OFFSET -48

#define TCG_TARGET_STATIC_CALL_ARGS_SIZE 8*4

#define TCG_TARGET_CALL_ALIGN_ARGS 1

#define TCG_TARGET_STACK_GROWSUP

/* optional instructions */

// #define TCG_TARGET_HAS_div_i32

#define TCG_TARGET_HAS_rot_i32

#define TCG_TARGET_HAS_ext8s_i32

#define TCG_TARGET_HAS_ext16s_i32

#define TCG_TARGET_HAS_bswap16_i32

#define TCG_TARGET_HAS_bswap32_i32

#define TCG_TARGET_HAS_not_i32

#define TCG_TARGET_HAS_andc_i32

// #define TCG_TARGET_HAS_orc_i32

#define TCG_TARGET_HAS_deposit_i32

/* optional instructions automatically implemented */

#undef TCG_TARGET_HAS_neg_i32           /* sub rd, 0, rs */

#undef TCG_TARGET_HAS_ext8u_i32         /* and rd, rs, 0xff */

#undef TCG_TARGET_HAS_ext16u_i32        /* and rd, rs, 0xffff */

#define TCG_TARGET_HAS_GUEST_BASE

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

#define TCG_AREG0 TCG_REG_R17

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

{

    start &= ~31;

    while (start <= stop) {

        asm volatile ("fdc 0(%0)\n\t"

                      "sync\n\t"

                      "fic 0(%%sr4, %0)\n\t"

                      "sync"

                      : : "r"(start) : "memory");

        start += 32;

    }

}