diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpsingle.cpp | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp index 07d0c1f44..6c33d8b78 100644 --- a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp @@ -522,8 +522,7 @@ static s64 vfp_single_to_doubleintern(ARMul_State* state, s32 m, u32 fpscr) //ic if (tm == VFP_QNAN) vdd.significand |= VFP_DOUBLE_SIGNIFICAND_QNAN; goto pack_nan; - } - else if (tm & VFP_ZERO) + } else if (tm & VFP_ZERO) vdd.exponent = 0; else vdd.exponent = vsm.exponent + (1023 - 127); @@ -615,12 +614,12 @@ static u32 vfp_single_ftoui(ARMul_State* state, int sd, int unused, s32 m, u32 f exceptions |= FPSCR_IDC; if (tm & VFP_NAN) - vsm.sign = 0; + vsm.sign = 1; if (vsm.exponent >= 127 + 32) { d = vsm.sign ? 0 : 0xffffffff; exceptions = FPSCR_IOC; - } else if (vsm.exponent >= 127 - 1) { + } else if (vsm.exponent >= 127) { int shift = 127 + 31 - vsm.exponent; u32 rem, incr = 0; @@ -705,7 +704,7 @@ static u32 vfp_single_ftosi(ARMul_State* state, int sd, int unused, s32 m, u32 f if (vsm.sign) d = ~d; exceptions |= FPSCR_IOC; - } else if (vsm.exponent >= 127 - 1) { + } else if (vsm.exponent >= 127) { int shift = 127 + 31 - vsm.exponent; u32 rem, incr = 0; @@ -1149,7 +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); } /* |