// wordlists.asm:	WORD p_strncmp,'STRNCMP',fasm

anchor:p_strncmp[]

=== Word: STRNCMP
....
Data stack: ( s1 s2 n -- v )
....

"STRNCMP" is a function words that compares up to n characters of
character sequences s1 and s2, and returns the difference of the first
differing characters, as in +s2[i] - s1[i]+, or 0 if all n characters
are the same.

I.e., the value v is less than 0 if string [n:s1] is alpha-numerically
less than [n:s2],
v is greater than 0 if [n:s1] is greater than [n:s2],
and v is 0 if [n:s1] and [n:s2] are equal.