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diff --git a/adoc/p_unequal.adoc b/adoc/p_unequal.adoc
index 2a1791d..640c2a6 100644
--- a/adoc/p_unequal.adoc
+++ b/adoc/p_unequal.adoc
@@ -1,9 +1,12 @@
+// logic.asm:	WORD p_unequal, '!=',fasm
+
 anchor:p_unequal[]
 
-Word: !=
-----------
+=== Word: !=
 
-----
-logic.asm:	WORD p_unequal, '!=',fasm
-----
+....
+Data stack: ( v1 v2 -- 0/-1 )
+....
 
+"!=" is a function word that replaces a pair of values with -1 of the
+values are unequal, and 0 otherwise.