lendle

import Base.convert

bitstype 64 IBMFloat64

# ibm float format is hex based:
#  * bit 1 = sign
#  * bits 2-8 = exponent to the power of 16, with bias of 64
#  * bits 9-64 = mantissa: no implied leading 1 (unlike ieee),
#    typically normalised (hex of bits 9-12 is non-zero), though this need
#    not be the case