+// logic.asm: WORD p_xor, 'XOR',fasm
+
anchor:p_xor[]
-Word: XOR
-----------
+=== Word: XOR
-----
-logic.asm: WORD p_xor, 'XOR',fasm
-----
+....
+Data stack: ( v1 v2 -- v3 )
+....
+"XOR" is a function word that replaces a value pair with their bitwise
+exclusion; each bit is 1 if the corresponding bits of the two operands
+differ and 0 if not.