adapted to new semantics of STACK

diff --git a/doc/ncg.doc b/doc/ncg.doc
index 4570d0c..e5464b4 100644 (file)
--- a/doc/ncg.doc
+++ b/doc/ncg.doc
@@ -1158,9 +1158,10 @@ This can of course be done with
 .DS
 kills ALL
 .DE
-or by ending the stack pattern with the word STACK, which is equivalent,
+or by ending the stack pattern with the word STACK,
 if the stack pattern does not start with
 .I exact .
+The latter does not erase the contents of registers.
 .PP
 It is unfortunate that this part is still present in the table
 but it is too much for now to let the