From 664396a635fbf2b666c73615e97c9e1f5d85a9ae Mon Sep 17 00:00:00 2001
From: Laurent Vivier <laurent@vivier.eu>
Date: Tue, 15 May 2018 07:43:56 -0400
Subject: [PATCH] m68k: fix floatx80_mod() (Coverity CID1390568)

Update the variable checked by the loop condition (expDiff).
Backport the update from Previous.

Fixes: 591596b77a ("target/m68k: add fmod/frem")

Backports commit 5a73e7f313da0e4657bcac61b533ced71b0d0224 from qemu
---
 qemu/target/m68k/softfloat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/qemu/target/m68k/softfloat.c b/qemu/target/m68k/softfloat.c
index e41b07d0..d0939972 100644
--- a/qemu/target/m68k/softfloat.c
+++ b/qemu/target/m68k/softfloat.c
@@ -103,6 +103,7 @@ floatx80 floatx80_mod(floatx80 a, floatx80 b, float_status *status)
         mul64To128(bSig, qTemp, &term0, &term1);
         sub128(aSig0, aSig1, term0, term1, &aSig0, &aSig1);
         shortShift128Left(aSig0, aSig1, 62, &aSig0, &aSig1);
+        expDiff -= 62;
     }
     expDiff += 64;
     if (0 < expDiff) {