HI Tony,

X=0xFEDCBA98765418
? TRANSFORM(BITAND(X/4294967296,0xFFFFFFFF),'@0')+SUBSTR(TRANSFORM(BITAND(X,0xFFFFFFFF),'@0'),3)
but
X=0xFEDCBA9876541C
? TRANSFORM(BITAND(X/4294967296,0xFFFFFFFF),'@0')+SUBSTR(TRANSFORM(BITAND(X,0xFFFFFFFF),'@0'),3)

ATTENTION, fox know only float64 variables, x is a float64 (A double-precision floating-point number) with max integer 9007199254740992 (2^53)

x=9007199254740992
? TRANSFORM(BITAND(X/4294967296,0xFFFFFFFF),'@0')+SUBSTR(TRANSFORM(BITAND(X,0xFFFFFFFF),'@0'),3)
x=9007199254740992-1
? TRANSFORM(BITAND(X/4294967296,0xFFFFFFFF),'@0')+SUBSTR(TRANSFORM(BITAND(X,0xFFFFFFFF),'@0'),3)
is ok
but
x=9007199254740992+1
? TRANSFORM(BITAND(X/4294967296,0xFFFFFFFF),'@0')+SUBSTR(TRANSFORM(BITAND(X,0xFFFFFFFF),'@0'),3)
is not ok

Fabio