3 files changed, 5 insertions, 0 deletions
diff --git a/src/emu/x64runavxf30f.c b/src/emu/x64runavxf30f.c
index 6b630544..5e3878fe 100644
--- a/src/emu/x64runavxf30f.c
+++ b/src/emu/x64runavxf30f.c
@@ -349,11 +349,13 @@ uintptr_t RunAVX_F30F(x64emu_t *emu, vex_t vex, uintptr_t addr, int *step)
             GETGX;
             GETVX;
             GETGY;
+            MARK_NAN_F_2(VX, EX);
             GX->f[0] = VX->f[0] / EX->f[0];
             if(GX!=VX) {
                 GX->ud[1] = VX->ud[1];
                 GX->q[1] = VX->q[1];
             }
+            CHECK_NAN_F(GX);
             GY->u128 = 0;
             break;
         case 0x5F:  /* VMAXSS Gx, Vx, Ex */
diff --git a/src/emu/x64runf20f.c b/src/emu/x64runf20f.c
index 65adeb0d..94a8cb46 100644
--- a/src/emu/x64runf20f.c
+++ b/src/emu/x64runf20f.c
@@ -266,6 +266,7 @@ uintptr_t RunF20F(x64emu_t *emu, rex_t rex, uintptr_t addr, int *step)
         _GETEX(0);
         GETGX;
         MARK_NAN_D_2(GX, EX);
+        NAN_PROPAGATION(GX->d[0], EX->d[0], break);
         GX->d[0] /= EX->d[0];
         CHECK_NAN_D(GX);
         break;
diff --git a/src/emu/x64runf30f.c b/src/emu/x64runf30f.c
index 4eb5a539..08b005c6 100644
--- a/src/emu/x64runf30f.c
+++ b/src/emu/x64runf30f.c
@@ -288,8 +288,10 @@ uintptr_t RunF30F(x64emu_t *emu, rex_t rex, uintptr_t addr)
         nextop = F8;
         GETEX(0);
         GETGX;
+        MARK_NAN_F_2(GX, EX);
         NAN_PROPAGATION(GX->f[0], EX->f[0], break);
         GX->f[0] /= EX->f[0];
+        CHECK_NAN_F(GX);
         break;
     case 0x5F:  /* MAXSS Gx, Ex */
         nextop = F8;