-{ $description "Iterates over a sequence, computes a hashcode with " { $link hashcode* } " for each element, and combines them." } ;
+{ $description "Iterates over a sequence, computes a hashcode with " { $link hashcode* } " for each element, and combines them using " { $link sequence-hashcode-step } "." } ;
+
+HELP: sequence-hashcode-step
+{ $values
+ { "oldhash" integer } { "newpart" integer }
+ { "newhash" integer } }
+{ $description "An implementation word that computes a running hashcode of a sequence using some bit-twiddling. The resulting hashcode is always a fixnum." } ;