Archipelago » qemu

/*

 *  MIPS emulation memory micro-operations for qemu.

 * 

 *  Copyright (c) 2004-2005 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

 */

/* Standard loads and stores */

void glue(op_lb, MEMSUFFIX) (void)

{

    T0 = glue(ldsb, MEMSUFFIX)(T0);

    RETURN();

}

void glue(op_lbu, MEMSUFFIX) (void)

{

    T0 = glue(ldub, MEMSUFFIX)(T0);

    RETURN();

}

void glue(op_sb, MEMSUFFIX) (void)

{

    glue(stb, MEMSUFFIX)(T0, T1);

    RETURN();

}

void glue(op_lh, MEMSUFFIX) (void)

{

    T0 = glue(ldsw, MEMSUFFIX)(T0);

    RETURN();

}

void glue(op_lhu, MEMSUFFIX) (void)

{

    T0 = glue(lduw, MEMSUFFIX)(T0);

    RETURN();

}

void glue(op_sh, MEMSUFFIX) (void)

{

    glue(stw, MEMSUFFIX)(T0, T1);

    RETURN();

}

void glue(op_lw, MEMSUFFIX) (void)

{

    T0 = glue(ldl, MEMSUFFIX)(T0);

    RETURN();

}

void glue(op_sw, MEMSUFFIX) (void)

{

    glue(stl, MEMSUFFIX)(T0, T1);

    RETURN();

}

/* "half" load and stores.  We must do the memory access inline,

   or fault handling won't work.  */

void glue(op_lwl, MEMSUFFIX) (void)

{

    uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);

    CALL_FROM_TB1(glue(do_lwl, MEMSUFFIX), tmp);

    RETURN();

}

void glue(op_lwr, MEMSUFFIX) (void)

{

    uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);

    CALL_FROM_TB1(glue(do_lwr, MEMSUFFIX), tmp);

    RETURN();

}

void glue(op_swl, MEMSUFFIX) (void)

{

    uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);

    tmp = CALL_FROM_TB1(glue(do_swl, MEMSUFFIX), tmp);

    glue(stl, MEMSUFFIX)(T0 & ~3, tmp);

    RETURN();

}

void glue(op_swr, MEMSUFFIX) (void)

{

    uint32_t tmp = glue(ldl, MEMSUFFIX)(T0 & ~3);

    tmp = CALL_FROM_TB1(glue(do_swr, MEMSUFFIX), tmp);

    glue(stl, MEMSUFFIX)(T0 & ~3, tmp);

    RETURN();

}

void glue(op_ll, MEMSUFFIX) (void)

{

    T1 = T0;

    T0 = glue(ldl, MEMSUFFIX)(T0);

    env->CP0_LLAddr = T1;

    RETURN();

}

void glue(op_sc, MEMSUFFIX) (void)

{

    CALL_FROM_TB0(dump_sc);

    if (T0 == env->CP0_LLAddr) {

        glue(stl, MEMSUFFIX)(T0, T1);

        T0 = 1;

    } else {

        T0 = 0;

    }

    RETURN();

}