From 1336ddfad70607906180391a74cf9e61ece43ced Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Thu, 3 Jun 2021 15:20:46 +0200
Subject: Fixed special case with FSCALE ocpode ([DYNAREC] too)

---
 src/dynarec/dynarec_arm64_functions.c | 3 ++-
 src/emu/x64rund9.c                    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/dynarec/dynarec_arm64_functions.c b/src/dynarec/dynarec_arm64_functions.c
index f9b051e3..0751ae71 100755
--- a/src/dynarec/dynarec_arm64_functions.c
+++ b/src/dynarec/dynarec_arm64_functions.c
@@ -86,7 +86,8 @@ void arm_frndint(x64emu_t* emu)
 }
 void arm_fscale(x64emu_t* emu)
 {
-    ST0.d *= exp2(trunc(ST1.d));
+    if(ST0.d!=0.0)
+        ST0.d *= exp2(trunc(ST1.d));
 }
 void arm_fsin(x64emu_t* emu)
 {
diff --git a/src/emu/x64rund9.c b/src/emu/x64rund9.c
index b7f2df5f..1a892b25 100644
--- a/src/emu/x64rund9.c
+++ b/src/emu/x64rund9.c
@@ -191,7 +191,8 @@ int RunD9(x64emu_t *emu, rex_t rex)
             break;
         case 0xFD:  /* FSCALE */
             // this could probably be done by just altering the exponant part of the float...
-            ST0.d *= exp2(trunc(ST1.d));
+            if(ST0.d!=0.0)
+                ST0.d *= exp2(trunc(ST1.d));
             break;
         case 0xFE:  /* FSIN */
             ST0.d = sin(ST0.d);
-- 
cgit 1.4.1