Provided by: systemtap-doc_4.6-2_amd64 

NAME
function::fp_sub - Subtraction between floating points
SYNOPSIS
fp_sub:long(sub1:long,sub2:long)
ARGUMENTS
sub1 the 64 bit floating point minuend sub2 64 bit floating point subtrahend
DESCRIPTION
result would be minuend minus subtrahend
SEE ALSO
tapset::floatingpoint(3stap)