op_mem.h.svn-base

我们自己开发的一个OSEK操作系统！不知道可不可以？

#ifdef TARGET_ABI32
#define ADDR(x) ((x) & 0xffffffff)
#else
#define ADDR(x) (x)
#endif

/***                             Integer load                              ***/
#define SPARC_LD_OP(name, qp)                                                 \
void OPPROTO glue(glue(op_, name), MEMSUFFIX)(void)                           \
{                                                                             \
    T1 = (target_ulong)glue(qp, MEMSUFFIX)(ADDR(T0));                         \
}

#define SPARC_LD_OP_S(name, qp)                                         \
    void OPPROTO glue(glue(op_, name), MEMSUFFIX)(void)                 \
    {                                                                   \
        T1 = (target_long)glue(qp, MEMSUFFIX)(ADDR(T0));                      \
    }

#define SPARC_ST_OP(name, op)                                                 \
void OPPROTO glue(glue(op_, name), MEMSUFFIX)(void)                           \
{                                                                             \
    glue(op, MEMSUFFIX)(ADDR(T0), T1);                                      \
}

SPARC_LD_OP(ld, ldl);
SPARC_LD_OP(ldub, ldub);
SPARC_LD_OP(lduh, lduw);
SPARC_LD_OP_S(ldsb, ldsb);
SPARC_LD_OP_S(ldsh, ldsw);

/***                              Integer store                            ***/
SPARC_ST_OP(st, stl);
SPARC_ST_OP(stb, stb);
SPARC_ST_OP(sth, stw);

void OPPROTO glue(op_std, MEMSUFFIX)(void)
{
    uint64_t tmp = ((uint64_t)T1 << 32) | (uint64_t)(T2 & 0xffffffff);

    glue(stq, MEMSUFFIX)(ADDR(T0), tmp);
}

void OPPROTO glue(op_ldstub, MEMSUFFIX)(void)
{
    T1 = glue(ldub, MEMSUFFIX)(ADDR(T0));
    glue(stb, MEMSUFFIX)(ADDR(T0), 0xff);     /* XXX: Should be Atomically */
}

void OPPROTO glue(op_swap, MEMSUFFIX)(void)
{
    target_ulong tmp = glue(ldl, MEMSUFFIX)(ADDR(T0));
    glue(stl, MEMSUFFIX)(ADDR(T0), T1);       /* XXX: Should be Atomically */
    T1 = tmp;
}

void OPPROTO glue(op_ldd, MEMSUFFIX)(void)
{
    uint64_t tmp;

    tmp = glue(ldq, MEMSUFFIX)(ADDR(T0));
    T1 = tmp >> 32;
    T0 = tmp & 0xffffffff;
}

/***                         Floating-point store                          ***/
void OPPROTO glue(op_stf, MEMSUFFIX) (void)
{
    glue(stfl, MEMSUFFIX)(ADDR(T0), FT0);
}

void OPPROTO glue(op_stdf, MEMSUFFIX) (void)
{
    glue(stfq, MEMSUFFIX)(ADDR(T0), DT0);
}

/***                         Floating-point load                           ***/
void OPPROTO glue(op_ldf, MEMSUFFIX) (void)
{
    FT0 = glue(ldfl, MEMSUFFIX)(ADDR(T0));
}

void OPPROTO glue(op_lddf, MEMSUFFIX) (void)
{
    DT0 = glue(ldfq, MEMSUFFIX)(ADDR(T0));
}

#if defined(CONFIG_USER_ONLY)
void OPPROTO glue(op_ldqf, MEMSUFFIX) (void)
{
    // XXX add 128 bit load
    CPU_QuadU u;

    u.ll.upper = glue(ldq, MEMSUFFIX)(ADDR(T0));
    u.ll.lower = glue(ldq, MEMSUFFIX)(ADDR(T0 + 8));
    QT0 = u.q;
}

void OPPROTO glue(op_stqf, MEMSUFFIX) (void)
{
    // XXX add 128 bit store
    CPU_QuadU u;

    u.q = QT0;
    glue(stq, MEMSUFFIX)(ADDR(T0), u.ll.upper);
    glue(stq, MEMSUFFIX)(ADDR(T0 + 8), u.ll.lower);
}
#endif

#ifdef TARGET_SPARC64
void OPPROTO glue(op_lduw, MEMSUFFIX)(void)
{
    T1 = (uint64_t)(glue(ldl, MEMSUFFIX)(ADDR(T0)) & 0xffffffff);
}

void OPPROTO glue(op_ldsw, MEMSUFFIX)(void)
{
    T1 = (int64_t)(glue(ldl, MEMSUFFIX)(ADDR(T0)) & 0xffffffff);
}

SPARC_LD_OP(ldx, ldq);
SPARC_ST_OP(stx, stq);
#endif
#undef MEMSUFFIX