Archipelago » qemu

/*

 *  PowerPC emulation helpers 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, see <http://www.gnu.org/licenses/>.

 */

#include "cpu.h"

#include "helper.h"

/*****************************************************************************/

/* SPR accesses */

target_ulong helper_load_tbl(CPUPPCState *env)

{

    return (target_ulong)cpu_ppc_load_tbl(env);

}

target_ulong helper_load_tbu(CPUPPCState *env)

{

    return cpu_ppc_load_tbu(env);

}

target_ulong helper_load_atbl(CPUPPCState *env)

{

    return (target_ulong)cpu_ppc_load_atbl(env);

}

target_ulong helper_load_atbu(CPUPPCState *env)

{

    return cpu_ppc_load_atbu(env);

}

#if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY)

target_ulong helper_load_purr(CPUPPCState *env)

{

    return (target_ulong)cpu_ppc_load_purr(env);

}

#endif

target_ulong helper_load_601_rtcl(CPUPPCState *env)

{

    return cpu_ppc601_load_rtcl(env);

}

target_ulong helper_load_601_rtcu(CPUPPCState *env)

{

    return cpu_ppc601_load_rtcu(env);

}

#if !defined(CONFIG_USER_ONLY)

void helper_store_tbl(CPUPPCState *env, target_ulong val)

{

    cpu_ppc_store_tbl(env, val);

}

void helper_store_tbu(CPUPPCState *env, target_ulong val)

{

    cpu_ppc_store_tbu(env, val);

}

void helper_store_atbl(CPUPPCState *env, target_ulong val)

{

    cpu_ppc_store_atbl(env, val);

}

void helper_store_atbu(CPUPPCState *env, target_ulong val)

{

    cpu_ppc_store_atbu(env, val);

}

void helper_store_601_rtcl(CPUPPCState *env, target_ulong val)

{

    cpu_ppc601_store_rtcl(env, val);

}

void helper_store_601_rtcu(CPUPPCState *env, target_ulong val)

{

    cpu_ppc601_store_rtcu(env, val);

}

target_ulong helper_load_decr(CPUPPCState *env)

{

    return cpu_ppc_load_decr(env);

}

void helper_store_decr(CPUPPCState *env, target_ulong val)

{

    cpu_ppc_store_decr(env, val);

}

target_ulong helper_load_40x_pit(CPUPPCState *env)

{

    return load_40x_pit(env);

}

void helper_store_40x_pit(CPUPPCState *env, target_ulong val)

{

    store_40x_pit(env, val);

}

void helper_store_booke_tcr(CPUPPCState *env, target_ulong val)

{

    store_booke_tcr(env, val);

}

void helper_store_booke_tsr(CPUPPCState *env, target_ulong val)

{

    store_booke_tsr(env, val);

}

#endif

/*****************************************************************************/

/* Embedded PowerPC specific helpers */

/* XXX: to be improved to check access rights when in user-mode */

target_ulong helper_load_dcr(CPUPPCState *env, target_ulong dcrn)

{

    uint32_t val = 0;

    if (unlikely(env->dcr_env == NULL)) {

        qemu_log("No DCR environment\n");

        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,

                                   POWERPC_EXCP_INVAL |

                                   POWERPC_EXCP_INVAL_INVAL);

    } else if (unlikely(ppc_dcr_read(env->dcr_env,

                                     (uint32_t)dcrn, &val) != 0)) {

        qemu_log("DCR read error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn);

        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,

                                   POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);

    }

    return val;

}

void helper_store_dcr(CPUPPCState *env, target_ulong dcrn, target_ulong val)

{

    if (unlikely(env->dcr_env == NULL)) {

        qemu_log("No DCR environment\n");

        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,

                                   POWERPC_EXCP_INVAL |

                                   POWERPC_EXCP_INVAL_INVAL);

    } else if (unlikely(ppc_dcr_write(env->dcr_env, (uint32_t)dcrn,

                                      (uint32_t)val) != 0)) {

        qemu_log("DCR write error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn);

        helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,

                                   POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG);

    }

}