Archipelago » qemu

/*

 *  Alpha emulation cpu micro-operations for memory accesses for qemu.

 *

 *  Copyright (c) 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

 */

//#define DEBUG_MEM_ACCESSES

#if defined (DEBUG_MEM_ACCESSES)

void helper_print_mem_EA (target_ulong EA);

#define print_mem_EA(EA) do { helper_print_mem_EA(EA); } while (0)

#else

#define print_mem_EA(EA) do { } while (0)

#endif

static always_inline uint32_t glue(ldl_l, MEMSUFFIX) (target_ulong EA)

{

    env->lock = EA;

    return glue(ldl, MEMSUFFIX)(EA);

}

static always_inline uint32_t glue(ldq_l, MEMSUFFIX) (target_ulong EA)

{

    env->lock = EA;

    return glue(ldq, MEMSUFFIX)(EA);

}

static always_inline void glue(stl_c, MEMSUFFIX) (target_ulong EA,

                                                  uint32_t data)

{

    if (EA == env->lock) {

        glue(stl, MEMSUFFIX)(EA, data);

        T0 = 0;

    } else {

        T0 = 1;

    }

    env->lock = -1;

}

static always_inline void glue(stq_c, MEMSUFFIX) (target_ulong EA,

                                                  uint64_t data)

{

    if (EA == env->lock) {

        glue(stq, MEMSUFFIX)(EA, data);

        T0 = 0;

    } else {

        T0 = 1;

    }

    env->lock = -1;

}

#define ALPHA_LD_OP(name, op)                                                 \

void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \

{                                                                             \

    print_mem_EA(T0);                                                         \

    T1 = glue(op, MEMSUFFIX)(T0);                                             \

    RETURN();                                                                 \

}

#define ALPHA_ST_OP(name, op)                                                 \

void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \

{                                                                             \

    print_mem_EA(T0);                                                         \

    glue(op, MEMSUFFIX)(T0, T1);                                              \

    RETURN();                                                                 \

}

ALPHA_LD_OP(bu, ldub);

ALPHA_ST_OP(b, stb);

ALPHA_LD_OP(wu, lduw);

ALPHA_ST_OP(w, stw);

ALPHA_LD_OP(l, ldl);

ALPHA_ST_OP(l, stl);

ALPHA_LD_OP(q, ldq);

ALPHA_ST_OP(q, stq);

ALPHA_LD_OP(q_u, ldq);

ALPHA_ST_OP(q_u, stq);

ALPHA_LD_OP(l_l, ldl_l);

ALPHA_LD_OP(q_l, ldq_l);

ALPHA_ST_OP(l_c, stl_c);

ALPHA_ST_OP(q_c, stq_c);

#define ALPHA_LDF_OP(name, op)                                                \

void OPPROTO glue(glue(op_ld, name), MEMSUFFIX) (void)                        \

{                                                                             \

    print_mem_EA(T0);                                                         \

    FT1 = glue(op, MEMSUFFIX)(T0);                                            \

    RETURN();                                                                 \

}

#define ALPHA_STF_OP(name, op)                                                \

void OPPROTO glue(glue(op_st, name), MEMSUFFIX) (void)                        \

{                                                                             \

    print_mem_EA(T0);                                                         \

    glue(op, MEMSUFFIX)(T0, FT1);                                             \

    RETURN();                                                                 \

}

ALPHA_LDF_OP(t, ldfq);

ALPHA_STF_OP(t, stfq);

ALPHA_LDF_OP(s, ldfl);

ALPHA_STF_OP(s, stfl);

/* VAX floating point */

ALPHA_LDF_OP(f, helper_ldff);

ALPHA_STF_OP(f, helper_stff);

ALPHA_LDF_OP(g, helper_ldfg);

ALPHA_STF_OP(g, helper_stfg);

#undef MEMSUFFIX