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author | Jannik Vogel <email@jannikvogel.de> | 2016-05-18 15:12:31 +0200 |
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committer | Jannik Vogel <email@jannikvogel.de> | 2016-05-18 16:28:13 +0200 |
commit | edf30d84cc0e8299d61c98f5bb40a6428d1576bc (patch) | |
tree | a53e1a34a139964323127aff92f101018dbfb2e3 /src/core/arm/skyeye_common/vfp/vfpsingle.cpp | |
parent | Fix exception propagation for VFP single precision (diff) | |
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Diffstat (limited to 'src/core/arm/skyeye_common/vfp/vfpsingle.cpp')
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpsingle.cpp | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp index 5fb6b51ec..23e0cdf26 100644 --- a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp @@ -89,10 +89,11 @@ static void vfp_single_normalise_denormal(struct vfp_single *vs) } -u32 vfp_single_normaliseround(ARMul_State* state, int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions, const char *func) +u32 vfp_single_normaliseround(ARMul_State* state, int sd, struct vfp_single *vs, u32 fpscr, const char *func) { u32 significand, incr, rmode; int exponent, shift, underflow; + u32 exceptions = 0; vfp_single_dump("pack: in", vs); @@ -409,8 +410,7 @@ sqrt_invalid: } vsd.significand = vfp_shiftright32jamming(vsd.significand, 1); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, 0, "fsqrt"); - + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fsqrt"); return exceptions; } @@ -535,7 +535,8 @@ static u32 vfp_single_fcvtd(ARMul_State* state, int dd, int unused, s32 m, u32 f else vdd.exponent = vsm.exponent + (1023 - 127); - return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fcvtd"); + exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fcvtd"); + return exceptions; pack_nan: vfp_put_double(state, vfp_double_pack(&vdd), dd); @@ -545,23 +546,27 @@ pack_nan: static u32 vfp_single_fuito(ARMul_State* state, int sd, int unused, s32 m, u32 fpscr) { struct vfp_single vs; + u32 exceptions = 0; vs.sign = 0; vs.exponent = 127 + 31 - 1; vs.significand = (u32)m; - return vfp_single_normaliseround(state, sd, &vs, fpscr, 0, "fuito"); + exceptions |= vfp_single_normaliseround(state, sd, &vs, fpscr, "fuito"); + return exceptions; } static u32 vfp_single_fsito(ARMul_State* state, int sd, int unused, s32 m, u32 fpscr) { struct vfp_single vs; + u32 exceptions = 0; vs.sign = (m & 0x80000000) >> 16; vs.exponent = 127 + 31 - 1; vs.significand = vs.sign ? -m : m; - return vfp_single_normaliseround(state, sd, &vs, fpscr, 0, "fsito"); + exceptions |= vfp_single_normaliseround(state, sd, &vs, fpscr, "fsito"); + return exceptions; } static u32 vfp_single_ftoui(ARMul_State* state, int sd, int unused, s32 m, u32 fpscr) @@ -953,7 +958,8 @@ vfp_single_multiply_accumulate(ARMul_State* state, int sd, int sn, s32 m, u32 fp exceptions |= vfp_single_add(&vsd, &vsn, &vsp, fpscr); - return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, func); + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, func); + return exceptions; } /* @@ -965,8 +971,10 @@ vfp_single_multiply_accumulate(ARMul_State* state, int sd, int sn, s32 m, u32 fp */ static u32 vfp_single_fmac(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) { + u32 exceptions = 0; LOG_TRACE(Core_ARM11, "s%u = %08x", sn, sd); - return vfp_single_multiply_accumulate(state, sd, sn, m, fpscr, 0, "fmac"); + exceptions |= vfp_single_multiply_accumulate(state, sd, sn, m, fpscr, 0, "fmac"); + return exceptions; } /* @@ -1017,7 +1025,9 @@ static u32 vfp_single_fmul(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) vfp_single_normalise_denormal(&vsm); exceptions |= vfp_single_multiply(&vsd, &vsn, &vsm, fpscr); - return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fmul"); + + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fmul"); + return exceptions; } /* @@ -1041,7 +1051,9 @@ static u32 vfp_single_fnmul(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr exceptions |= vfp_single_multiply(&vsd, &vsn, &vsm, fpscr); vsd.sign = vfp_sign_negate(vsd.sign); - return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fnmul"); + + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fnmul"); + return exceptions; } /* @@ -1068,7 +1080,8 @@ static u32 vfp_single_fadd(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) exceptions |= vfp_single_add(&vsd, &vsn, &vsm, fpscr); - return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fadd"); + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fadd"); + return exceptions; } /* @@ -1165,7 +1178,8 @@ static u32 vfp_single_fdiv(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) if ((vsd.significand & 0x3f) == 0) vsd.significand |= ((u64)vsm.significand * vsd.significand != (u64)vsn.significand << 32); - return vfp_single_normaliseround(state, sd, &vsd, fpscr, 0, "fdiv"); + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fdiv"); + return exceptions; vsn_nan: exceptions |= vfp_propagate_nan(&vsd, &vsn, &vsm, fpscr); @@ -1191,7 +1205,8 @@ infinity: invalid: vfp_put_float(state, vfp_single_pack(&vfp_single_default_qnan), sd); - return FPSCR_IOC; + exceptions |= FPSCR_IOC; + return exceptions; } static struct op fops[] = { |