diff options
| -rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpsingle.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp index 871900497..f5410fd9a 100644 --- a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp @@ -1148,7 +1148,10 @@ static u32 vfp_single_fsub(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) /* * Subtraction is addition with one sign inverted. */ - return vfp_single_fadd(state, sd, sn, vfp_single_packed_negate(m), fpscr); + if (m != 0x7FC00000) // Only negate if m isn't NaN. + m = vfp_single_packed_negate(m); + + return vfp_single_fadd(state, sd, sn, m, fpscr); } /* |