Archipelago » qemu

#define exec_op glue(exec_, OP)

#define exec_opl glue(glue(exec_, OP), l)

#define exec_opw glue(glue(exec_, OP), w)

#define exec_opb glue(glue(exec_, OP), b)

#define EXECSHIFT(size, res, s1, flags) \

    asm ("push %4\n\t"\

         "popf\n\t"\

         stringify(OP) size " %%cl, %" size "0\n\t" \

         "pushf\n\t"\

         "popl %1\n\t"\

         : "=q" (res), "=g" (flags)\

         : "c" (s1), "0" (res), "1" (flags));

void exec_opl(int s0, int s1, int iflags)

{

    int res, flags;

    res = s0;

    flags = iflags;

    EXECSHIFT("", res, s1, flags);

    /* overflow is undefined if count != 1 */

    if (s1 != 1)

      flags &= ~CC_O;

    printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",

           stringify(OP) "l", s0, s1, res, iflags, flags & CC_MASK);

}

void exec_opw(int s0, int s1, int iflags)

{

    int res, flags;

    res = s0;

    flags = iflags;

    EXECSHIFT("w", res, s1, flags);

    /* overflow is undefined if count != 1 */

    if (s1 != 1)

      flags &= ~CC_O;

    printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",

           stringify(OP) "w", s0, s1, res, iflags, flags & CC_MASK);

}

void exec_opb(int s0, int s1, int iflags)

{

    int res, flags;

    res = s0;

    flags = iflags;

    EXECSHIFT("b", res, s1, flags);

    /* overflow is undefined if count != 1 */

    if (s1 != 1)

      flags &= ~CC_O;

    printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",

           stringify(OP) "b", s0, s1, res, iflags, flags & CC_MASK);

}

void exec_op(int s0, int s1)

{

    exec_opl(s0, s1, 0);

    exec_opw(s0, s1, 0);

    exec_opb(s0, s1, 0);

#ifdef OP_CC

    exec_opl(s0, s1, CC_C);

    exec_opw(s0, s1, CC_C);

    exec_opb(s0, s1, CC_C);

#endif

}

void glue(test_, OP)(void)

{

    int i;

    for(i = 0; i < 32; i++)

        exec_op(0x12345678, i);

    for(i = 0; i < 32; i++)

        exec_op(0x82345678, i);

}

void *glue(_test_, OP) __init_call = glue(test_, OP);

#undef OP

#undef OP_CC