* i387-nat.c (i387_supply_fxsave, i387_fill_fxsave, i387_tag): Fix
typos in which hexadecimal constants were really intended to be
binary constants.
(i387_tag): Swap logic regarding zero vs non-zero exponents.
consistently for parameter names. Fix comments accordingly.
(i387_supply_register): New function.
(i387_supply_fsave): Implement using i387_supply_register.
* i387-nat.h: Use regnum instead of regno consistently for
parameter names. Fix comments accordingly.
(i387_supply_register): New prototype.
(i387_supply_fxsave, i387_fill_fxsave): New prototypes.
* i387-nat.c (i387_supply_fsave): Declare `val' as `unsigned int'.
(fxsave_offset): New variable.
(FXSAVE_ADDR): New macro.
(i387_supply_fxsave, i387_fill_fxsave, i387_tag): New functions.