Archipelago » qemu

/*

 *  PowerPC emulation helpers header for qemu.

 * 

 *  Copyright (c) 2003-2007 Jocelyn Mayer

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#if defined(MEMSUFFIX)

/* Memory load/store helpers */

void glue(do_lsw, MEMSUFFIX) (int dst);

void glue(do_lsw_le, MEMSUFFIX) (int dst);

void glue(do_stsw, MEMSUFFIX) (int src);

void glue(do_stsw_le, MEMSUFFIX) (int src);

void glue(do_lmw, MEMSUFFIX) (int dst);

void glue(do_lmw_le, MEMSUFFIX) (int dst);

void glue(do_stmw, MEMSUFFIX) (int src);

void glue(do_stmw_le, MEMSUFFIX) (int src);

void glue(do_icbi, MEMSUFFIX) (void);

void glue(do_POWER_lscbx, MEMSUFFIX) (int dest, int ra, int rb);

void glue(do_POWER2_lfq, MEMSUFFIX) (void);

void glue(do_POWER2_lfq_le, MEMSUFFIX) (void);

void glue(do_POWER2_stfq, MEMSUFFIX) (void);

void glue(do_POWER2_stfq_le, MEMSUFFIX) (void);

#if defined(TARGET_PPC64)

void glue(do_lsw_64, MEMSUFFIX) (int dst);

void glue(do_lsw_le_64, MEMSUFFIX) (int dst);

void glue(do_stsw_64, MEMSUFFIX) (int src);

void glue(do_stsw_le_64, MEMSUFFIX) (int src);

void glue(do_lmw_64, MEMSUFFIX) (int dst);

void glue(do_lmw_le_64, MEMSUFFIX) (int dst);

void glue(do_stmw_64, MEMSUFFIX) (int src);

void glue(do_stmw_le_64, MEMSUFFIX) (int src);

void glue(do_icbi_64, MEMSUFFIX) (void);

#endif

#else

/* Registers load and stores */

void do_load_cr (void);

void do_store_cr (uint32_t mask);

void do_load_xer (void);

void do_store_xer (void);

void do_load_fpscr (void);

void do_store_fpscr (uint32_t mask);

/* Integer arithmetic helpers */

void do_adde (void);

void do_addmeo (void);

void do_divwo (void);

void do_divwuo (void);

void do_mullwo (void);

void do_nego (void);

void do_subfe (void);

void do_subfmeo (void);

void do_subfzeo (void);

void do_sraw (void);

#if defined(TARGET_PPC64)

void do_adde_64 (void);

void do_addmeo_64 (void);

void do_imul64 (uint64_t *tl, uint64_t *th);

void do_mul64 (uint64_t *tl, uint64_t *th);

void do_divdo (void);

void do_divduo (void);

void do_mulldo (void);

void do_nego_64 (void);

void do_subfe_64 (void);

void do_subfmeo_64 (void);

void do_subfzeo_64 (void);

void do_srad (void);

#endif

void do_popcntb (void);

#if defined(TARGET_PPC64)

void do_popcntb_64 (void);

#endif

/* Floating-point arithmetic helpers */

void do_fsqrt (void);

void do_fres (void);

void do_frsqrte (void);

void do_fsel (void);

#if USE_PRECISE_EMULATION

void do_fmadd (void);

void do_fmsub (void);

#endif

void do_fnmadd (void);

void do_fnmsub (void);

void do_fctiw (void);

void do_fctiwz (void);

#if defined(TARGET_PPC64)

void do_fcfid (void);

void do_fctid (void);

void do_fctidz (void);

#endif

void do_fcmpu (void);

void do_fcmpo (void);

/* Misc */

void do_tw (int flags);

#if defined(TARGET_PPC64)

void do_td (int flags);

#endif

#if !defined(CONFIG_USER_ONLY)

void do_rfi (void);

#if defined(TARGET_PPC64)

void do_rfi_32 (void);

void do_rfid (void);

void do_rfid_32 (void);

#endif

void do_tlbia (void);

void do_tlbie (void);

#if defined(TARGET_PPC64)

void do_tlbie_64 (void);

#endif

void do_load_6xx_tlb (int is_code);

#if defined(TARGET_PPC64)

void do_slbia (void);

void do_slbie (void);

#endif

#endif

/* POWER / PowerPC 601 specific helpers */

void do_store_601_batu (int nr);

void do_POWER_abso (void);

void do_POWER_clcs (void);

void do_POWER_div (void);

void do_POWER_divo (void);

void do_POWER_divs (void);

void do_POWER_divso (void);

void do_POWER_dozo (void);

void do_POWER_maskg (void);

void do_POWER_mulo (void);

#if !defined(CONFIG_USER_ONLY)

void do_POWER_rac (void);

void do_POWER_rfsvc (void);

#endif

/* PowerPC 602 specific helper */

#if !defined(CONFIG_USER_ONLY)

void do_op_602_mfrom (void);

#endif

/* PowerPC 4xx specific helpers */

void do_405_check_ov (void);

void do_405_check_sat (void);

#if !defined(CONFIG_USER_ONLY)

void do_4xx_load_dcr (int dcrn);

void do_4xx_store_dcr (int dcrn);

void do_4xx_rfci (void);

void do_4xx_tlbre_lo (void);

void do_4xx_tlbre_hi (void);

void do_4xx_tlbsx (void);

void do_4xx_tlbsx_ (void);

void do_4xx_tlbwe_lo (void);

void do_4xx_tlbwe_hi (void);

#endif

/* PowerPC 440 specific helpers */

void do_440_dlmzb (void);

/* PowerPC 403 specific helpers */

#if !defined(CONFIG_USER_ONLY)

void do_load_403_pb (int num);

void do_store_403_pb (int num);

#endif

#if defined(TARGET_PPCSPE)

/* SPE extension helpers */

void do_brinc (void);

/* Fixed-point vector helpers */

void do_evabs (void);

void do_evaddw (void);

void do_evcntlsw (void);

void do_evcntlzw (void);

void do_evneg (void);

void do_evrlw (void);

void do_evsel (void);

void do_evrndw (void);

void do_evslw (void);

void do_evsrws (void);

void do_evsrwu (void);

void do_evsubfw (void);

void do_evcmpeq (void);

void do_evcmpgts (void);

void do_evcmpgtu (void);

void do_evcmplts (void);

void do_evcmpltu (void);

/* Single precision floating-point helpers */

void do_efscmplt (void);

void do_efscmpgt (void);

void do_efscmpeq (void);

void do_efscfsf (void);

void do_efscfuf (void);

void do_efsctsf (void);

void do_efsctuf (void);

void do_efscfsi (void);

void do_efscfui (void);

void do_efsctsi (void);

void do_efsctui (void);

void do_efsctsiz (void);

void do_efsctuiz (void);

/* Double precision floating-point helpers */

void do_efdcmplt (void);

void do_efdcmpgt (void);

void do_efdcmpeq (void);

void do_efdcfsf (void);

void do_efdcfuf (void);

void do_efdctsf (void);

void do_efdctuf (void);

void do_efdcfsi (void);

void do_efdcfui (void);

void do_efdctsi (void);

void do_efdctui (void);

void do_efdctsiz (void);

void do_efdctuiz (void);

void do_efdcfs (void);

void do_efscfd (void);

/* Floating-point vector helpers */

void do_evfsabs (void);

void do_evfsnabs (void);

void do_evfsneg (void);

void do_evfsadd (void);

void do_evfssub (void);

void do_evfsmul (void);

void do_evfsdiv (void);

void do_evfscmplt (void);

void do_evfscmpgt (void);

void do_evfscmpeq (void);

void do_evfststlt (void);

void do_evfststgt (void);

void do_evfststeq (void);

void do_evfscfsi (void);

void do_evfscfui (void);

void do_evfscfsf (void);

void do_evfscfuf (void);

void do_evfsctsf (void);

void do_evfsctuf (void);

void do_evfsctsi (void);

void do_evfsctui (void);

void do_evfsctsiz (void);

void do_evfsctuiz (void);

#endif /* defined(TARGET_PPCSPE) */

/* Inlined helpers: used in micro-operation as well as helpers */

/* Generic fixed-point helpers */

static inline int _do_cntlzw (uint32_t val)

{

    int cnt = 0;

    if (!(val & 0xFFFF0000UL)) {

        cnt += 16;

        val <<= 16;

    }

    if (!(val & 0xFF000000UL)) {

        cnt += 8;

        val <<= 8;

    }

    if (!(val & 0xF0000000UL)) {

        cnt += 4;

        val <<= 4;

    }

    if (!(val & 0xC0000000UL)) {

        cnt += 2;

        val <<= 2;

    }

    if (!(val & 0x80000000UL)) {

        cnt++;

        val <<= 1;

    }

    if (!(val & 0x80000000UL)) {

        cnt++;

    }

    return cnt;

}

static inline int _do_cntlzd (uint64_t val)

{

    int cnt = 0;

#if HOST_LONG_BITS == 64

    if (!(val & 0xFFFFFFFF00000000ULL)) {

        cnt += 32;

        val <<= 32;

    }

    if (!(val & 0xFFFF000000000000ULL)) {

        cnt += 16;

        val <<= 16;

    }

    if (!(val & 0xFF00000000000000ULL)) {

        cnt += 8;

        val <<= 8;

    }

    if (!(val & 0xF000000000000000ULL)) {

        cnt += 4;

        val <<= 4;

    }

    if (!(val & 0xC000000000000000ULL)) {

        cnt += 2;

        val <<= 2;

    }

    if (!(val & 0x8000000000000000ULL)) {

        cnt++;

        val <<= 1;

    }

    if (!(val & 0x8000000000000000ULL)) {

        cnt++;

    }

#else

    /* Make it easier on 32 bits host machines */

    if (!(val >> 32))

        cnt = _do_cntlzw(val) + 32;

    else

        cnt = _do_cntlzw(val >> 32);

#endif

    return cnt;

}

#if defined(TARGET_PPCSPE)

/* SPE extension */

/* Single precision floating-point helpers */

static inline uint32_t _do_efsabs (uint32_t val)

{

    return val & ~0x80000000;

}

static inline uint32_t _do_efsnabs (uint32_t val)

{

    return val | 0x80000000;

}

static inline uint32_t _do_efsneg (uint32_t val)

{

    return val ^ 0x80000000;

}

static inline uint32_t _do_efsadd (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    u1.f = float32_add(u1.f, u2.f, &env->spe_status);

    return u1.u;

}

static inline uint32_t _do_efssub (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    u1.f = float32_sub(u1.f, u2.f, &env->spe_status);

    return u1.u;

}

static inline uint32_t _do_efsmul (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    u1.f = float32_mul(u1.f, u2.f, &env->spe_status);

    return u1.u;

}

static inline uint32_t _do_efsdiv (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    u1.f = float32_div(u1.f, u2.f, &env->spe_status);

    return u1.u;

}

static inline int _do_efststlt (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float32_lt(u1.f, u2.f, &env->spe_status) ? 1 : 0;

}

static inline int _do_efststgt (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 1;

}

static inline int _do_efststeq (uint32_t op1, uint32_t op2)

{

    union {

        uint32_t u;

        float32 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float32_eq(u1.f, u2.f, &env->spe_status) ? 1 : 0;

}

/* Double precision floating-point helpers */

static inline int _do_efdtstlt (uint64_t op1, uint64_t op2)

{

    union {

        uint64_t u;

        float64 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float64_lt(u1.f, u2.f, &env->spe_status) ? 1 : 0;

}

static inline int _do_efdtstgt (uint64_t op1, uint64_t op2)

{

    union {

        uint64_t u;

        float64 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float64_le(u1.f, u2.f, &env->spe_status) ? 0 : 1;

}

static inline int _do_efdtsteq (uint64_t op1, uint64_t op2)

{

    union {

        uint64_t u;

        float64 f;

    } u1, u2;

    u1.u = op1;

    u2.u = op2;

    return float64_eq(u1.f, u2.f, &env->spe_status) ? 1 : 0;

}

#endif /* defined(TARGET_PPCSPE) */

#endif