2 files changed, 27 insertions, 4 deletions

diff --git a/include/math-emu/op-common.h b/include/math-emu/op-common.h
index bb46e7645d53..cc1ec396f8d6 100644
--- a/include/math-emu/op-common.h
+++ b/include/math-emu/op-common.h
@@ -73,7 +73,7 @@ do {									\
         X##_c = FP_CLS_NAN;                                             \
         /* Check for signaling NaN */                                   \
         if (!(_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs))            \
-          FP_SET_EXCEPTION(FP_EX_INVALID);                              \
+          FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_SNAN);         \
       }                                                                 \
     break;                                                              \
   }                                                                     \
@@ -324,7 +324,7 @@ do {									     \
         _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs);                              \
         R##_s = _FP_NANSIGN_##fs;                                            \
         R##_c = FP_CLS_NAN;                                                  \
-        FP_SET_EXCEPTION(FP_EX_INVALID);                                     \
+        FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_ISI);                 \
         break;                                                               \
       }                                                                      \
     /* FALLTHRU */                                                           \
@@ -431,7 +431,7 @@ do {							\
     R##_s = _FP_NANSIGN_##fs;                           \
     R##_c = FP_CLS_NAN;                                 \
     _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs);             \
-    FP_SET_EXCEPTION(FP_EX_INVALID);                    \
+    FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_IMZ);\
     break;                                              \
                                                         \
   default:                                              \
@@ -490,11 +490,15 @@ do {							\
     break;                                              \
                                                         \
   case _FP_CLS_COMBINE(FP_CLS_INF,FP_CLS_INF):          \
+    R##_s = _FP_NANSIGN_##fs;                           \
+    R##_c = FP_CLS_NAN;                                 \
+    _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs);             \
+    FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_IDI);\
   case _FP_CLS_COMBINE(FP_CLS_ZERO,FP_CLS_ZERO):        \
     R##_s = _FP_NANSIGN_##fs;                           \
     R##_c = FP_CLS_NAN;                                 \
     _FP_FRAC_SET_##wc(R, _FP_NANFRAC_##fs);             \
-    FP_SET_EXCEPTION(FP_EX_INVALID);                    \
+    FP_SET_EXCEPTION(FP_EX_INVALID | FP_EX_INVALID_ZDZ);\
     break;                                              \
                                                         \
   default:                                              \
diff --git a/include/math-emu/soft-fp.h b/include/math-emu/soft-fp.h
index a6f873b45f98..3f284bc03180 100644
--- a/include/math-emu/soft-fp.h
+++ b/include/math-emu/soft-fp.h
@@ -51,6 +51,25 @@
 #ifndef FP_EX_INVALID
 #define FP_EX_INVALID           0
 #endif
+#ifndef FP_EX_INVALID_SNAN
+#define FP_EX_INVALID_SNAN      0
+#endif
+/* inf - inf */
+#ifndef FP_EX_INVALID_ISI
+#define FP_EX_INVALID_ISI       0
+#endif
+/* inf / inf */
+#ifndef FP_EX_INVALID_IDI
+#define FP_EX_INVALID_IDI       0
+#endif
+/* 0 / 0 */
+#ifndef FP_EX_INVALID_ZDZ
+#define FP_EX_INVALID_ZDZ       0
+#endif
+/* inf * 0 */
+#ifndef FP_EX_INVALID_IMZ
+#define FP_EX_INVALID_IMZ       0
+#endif
 #ifndef FP_EX_OVERFLOW
 #define FP_EX_OVERFLOW          0
 #endif