From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 4 Jun 2010 14:27:33 +0000 (+0200)
Subject: target-i386: fix decoding of negative 4-byte displacements
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8c0e6340fb53cb3f94c0f43abb19eb485f30840e;p=qemu.git

target-i386: fix decoding of negative 4-byte displacements

Negative four byte displacements need to be sign-extended after
c086b783eb7a578993d6d2ab62c4c2666800b63d.  Do so.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Richard Henderson  <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---

diff --git a/target-i386/translate.c b/target-i386/translate.c
index 38c6016574..708b0a11e9 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -2016,7 +2016,7 @@ static void gen_lea_modrm(DisasContext *s, int modrm, int *reg_ptr, int *offset_
             break;
         default:
         case 2:
-            disp = ldl_code(s->pc);
+            disp = (int32_t)ldl_code(s->pc);
             s->pc += 4;
             break;
         }