fix panicky negation in debug builds

1 files changed, 1 insertions, 1 deletions

diff --git a/src/display.rs b/src/display.rs
index 7ec7f0f..7d8c1b5 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -120,7 +120,7 @@ impl <T: std::fmt::Write> Colorize<T> for Operand {
             }
             &Operand::RegDisp(ref spec, ref disp) => {
                 let (sign, disp) = if *disp < 0 {
-                    (true, -*disp)
+                    (true, (-std::num::Wrapping(*disp)).0)
                 } else {
                     (false, *disp)
                 };