Floating Point binary calculations

Would someone check my calculations? I just want to make sure it's not all wrong.

http://i49.tinypic.com/10dtjk4.png

The first one is 4 3/8, the second is just 1.

Basic info:
- Held in 16 bits.
- 1 sign bit.
- 7 bit exponent in Excess 63.
- 8 bit significand, normalised to 1.x with only the fractional part stored (like IEEE 754).

Looks OK.

Thanks.

Exponent required is +2. If the bias is 63 then you do 2+63. But perhaps I misunderstand "excess" vs. bias.