[hackers] [libzahl] Manual: fix sign of example for zxor || Mattias Andrée

[git]

commit 5c70306f2f5e4a5c6dfdd4ea5111be5054a98849
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Sun Jun 19 03:26:50 2016 +0200
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Sun Jun 19 03:26:50 2016 +0200

    Manual: fix sign of example for zxor
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/doc/bit-operations.tex b/doc/bit-operations.tex
index f3b0081..f7901b0 100644
--- a/doc/bit-operations.tex
+++ b/doc/bit-operations.tex
@@ -296,7 +296,7 @@ example (integers are in binary):
    zxor(r, a, b)              znot(r, a)
    a = +1010  (input)         a = +1010  (input)
    b = -1100  (input)         r = -0101  (output)
-   r = +0110  (output)
+   r = -0110  (output)
 \end{alltt}
 
 Remember, in libzahl, integers are represented