extern void stackOverflow(void);
extern void __decodeDouble (MP_INT *man, I_ *_exp, StgDouble dbl);
-extern void __decodeFloat (MP_INT *man, I_ *_exp, StgFloat flt);
extern void __decodeDouble_2Int (I_ *man_sign, W_ *man_high, W_ *man_low, I_ *exp, StgDouble dbl);
extern void __decodeFloat_Int (I_ *man, I_ *exp, StgFloat flt);