diff options
Diffstat (limited to 'src/core/arm/skyeye_common/vfp/vfpdouble.cpp')
| -rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpdouble.cpp | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/src/core/arm/skyeye_common/vfp/vfpdouble.cpp b/src/core/arm/skyeye_common/vfp/vfpdouble.cpp index 580e60c85..1d5641810 100644 --- a/src/core/arm/skyeye_common/vfp/vfpdouble.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpdouble.cpp @@ -568,7 +568,7 @@ static u32 vfp_double_ftoui(ARMul_State* state, int sd, int unused, int dm, u32 if (vdm.exponent >= 1023 + 32) { d = vdm.sign ? 0 : 0xffffffff; exceptions = FPSCR_IOC; - } else if (vdm.exponent >= 1023 - 1) { + } else if (vdm.exponent >= 1023) { int shift = 1023 + 63 - vdm.exponent; u64 rem, incr = 0; @@ -603,12 +603,20 @@ static u32 vfp_double_ftoui(ARMul_State* state, int sd, int unused, int dm, u32 } else { d = 0; if (vdm.exponent | vdm.significand) { - exceptions |= FPSCR_IXC; - if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0) + if (rmode == FPSCR_ROUND_NEAREST) { + if (vdm.exponent >= 1022) { + d = vdm.sign ? 0 : 1; + exceptions |= vdm.sign ? FPSCR_IOC : FPSCR_IXC; + } else { + exceptions |= FPSCR_IXC; + } + } else if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0) { d = 1; - else if (rmode == FPSCR_ROUND_MINUSINF && vdm.sign) { - d = 0; - exceptions |= FPSCR_IOC; + exceptions |= FPSCR_IXC; + } else if (rmode == FPSCR_ROUND_MINUSINF) { + exceptions |= vdm.sign ? FPSCR_IOC : FPSCR_IXC; + } else { + exceptions |= FPSCR_IXC; } } } @@ -623,7 +631,7 @@ static u32 vfp_double_ftoui(ARMul_State* state, int sd, int unused, int dm, u32 static u32 vfp_double_ftouiz(ARMul_State* state, int sd, int unused, int dm, u32 fpscr) { LOG_TRACE(Core_ARM11, "In %s", __FUNCTION__); - return vfp_double_ftoui(state, sd, unused, dm, FPSCR_ROUND_TOZERO); + return vfp_double_ftoui(state, sd, unused, dm, (fpscr & ~FPSCR_RMODE_MASK) | FPSCR_ROUND_TOZERO); } static u32 vfp_double_ftosi(ARMul_State* state, int sd, int unused, int dm, u32 fpscr) @@ -647,12 +655,12 @@ static u32 vfp_double_ftosi(ARMul_State* state, int sd, int unused, int dm, u32 if (tm & VFP_NAN) { d = 0; exceptions |= FPSCR_IOC; - } else if (vdm.exponent >= 1023 + 32) { + } else if (vdm.exponent >= 1023 + 31) { d = 0x7fffffff; if (vdm.sign) d = ~d; exceptions |= FPSCR_IOC; - } else if (vdm.exponent >= 1023 - 1) { + } else if (vdm.exponent >= 1023) { int shift = 1023 + 63 - vdm.exponent; /* 58 */ u64 rem, incr = 0; @@ -683,10 +691,17 @@ static u32 vfp_double_ftosi(ARMul_State* state, int sd, int unused, int dm, u32 d = 0; if (vdm.exponent | vdm.significand) { exceptions |= FPSCR_IXC; - if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0) + if (rmode == FPSCR_ROUND_NEAREST) { + if (vdm.exponent >= 1022) { + d = vdm.sign ? 0xffffffff : 1; + } else { + d = 0; + } + } else if (rmode == FPSCR_ROUND_PLUSINF && vdm.sign == 0) { d = 1; - else if (rmode == FPSCR_ROUND_MINUSINF && vdm.sign) - d = -1; + } else if (rmode == FPSCR_ROUND_MINUSINF && vdm.sign) { + d = 0xffffffff; + } } } @@ -700,7 +715,7 @@ static u32 vfp_double_ftosi(ARMul_State* state, int sd, int unused, int dm, u32 static u32 vfp_double_ftosiz(ARMul_State* state, int dd, int unused, int dm, u32 fpscr) { LOG_TRACE(Core_ARM11, "In %s", __FUNCTION__); - return vfp_double_ftosi(state, dd, unused, dm, FPSCR_ROUND_TOZERO); + return vfp_double_ftosi(state, dd, unused, dm, (fpscr & ~FPSCR_RMODE_MASK) | FPSCR_ROUND_TOZERO); } static struct op fops_ext[] = { |