Avoid decremented overflow.
authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Wed, 9 Jul 2008 15:31:50 +0000 (15:31 +0000)
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Wed, 9 Jul 2008 15:31:50 +0000 (15:31 +0000)
commit871767a1a67bc1a7a0d0417c91f3b8265ea2ef9c
treeea91c9df2396b07488c8b600fc9eb64f21bc0efc
parent7373674210ff159a05a1443a1bf5ffc412fd254d
Avoid decremented overflow.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4862 c046a42c-6fe2-441c-8c8c-71466251a162
exec.c