Archipelago » qemu

void helper_vsldoi (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)

{

    int sh = shift & 0xf;

    int i;

    ppc_avr_t result;

#if defined(WORDS_BIGENDIAN)

    for (i = 0; i < ARRAY_SIZE(r->u8); i++) {

        int index = sh + i;

        if (index > 0xf) {

            result.u8[i] = b->u8[index-0x10];

        } else {

            result.u8[i] = a->u8[index];

        }

    }

#else

    for (i = 0; i < ARRAY_SIZE(r->u8); i++) {

        int index = (16 - sh) + i;

        if (index > 0xf) {

            result.u8[i] = a->u8[index-0x10];

        } else {

            result.u8[i] = b->u8[index];

        }

    }

#endif

    *r = result;

}