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author | Yuri Kunde Schlesner <yuriks@yuriks.net> | 2017-05-09 06:38:45 +0200 |
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committer | GitHub <noreply@github.com> | 2017-05-09 06:38:45 +0200 |
commit | 13dd0b88de66b7c60bbd35303fdb618b55ef62e3 (patch) | |
tree | fb5ffc85be964f36260fab3668ee799070136a36 | |
parent | Merge pull request #2689 from yuriks/remove-disassembler (diff) | |
parent | Dyncom/VFP: Strip the VFP_NAN_FLAG sentinel value when setting vfp exceptions. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfp_helper.h | 4 | ||||
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpdouble.cpp | 42 | ||||
-rw-r--r-- | src/core/arm/skyeye_common/vfp/vfpsingle.cpp | 43 |
3 files changed, 30 insertions, 59 deletions
diff --git a/src/core/arm/skyeye_common/vfp/vfp_helper.h b/src/core/arm/skyeye_common/vfp/vfp_helper.h index 5e14345ce..1eba71b48 100644 --- a/src/core/arm/skyeye_common/vfp/vfp_helper.h +++ b/src/core/arm/skyeye_common/vfp/vfp_helper.h @@ -291,7 +291,7 @@ inline s32 vfp_single_pack(const vfp_single* s) { return (s32)val; } -u32 vfp_single_normaliseround(ARMul_State* state, int sd, vfp_single* vs, u32 fpscr, +u32 vfp_single_normaliseround(ARMul_State* state, int sd, vfp_single* vs, u32 fpscr, u32 exceptions, const char* func); // Double-precision @@ -429,5 +429,5 @@ inline u32 fls(u32 x) { u32 vfp_double_multiply(vfp_double* vdd, vfp_double* vdn, vfp_double* vdm, u32 fpscr); u32 vfp_double_add(vfp_double* vdd, vfp_double* vdn, vfp_double* vdm, u32 fpscr); -u32 vfp_double_normaliseround(ARMul_State* state, int dd, vfp_double* vd, u32 fpscr, +u32 vfp_double_normaliseround(ARMul_State* state, int dd, vfp_double* vd, u32 fpscr, u32 exceptions, const char* func); diff --git a/src/core/arm/skyeye_common/vfp/vfpdouble.cpp b/src/core/arm/skyeye_common/vfp/vfpdouble.cpp index 2886f351f..7b035f56a 100644 --- a/src/core/arm/skyeye_common/vfp/vfpdouble.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpdouble.cpp @@ -82,11 +82,10 @@ static void vfp_double_normalise_denormal(struct vfp_double* vd) { } u32 vfp_double_normaliseround(ARMul_State* state, int dd, struct vfp_double* vd, u32 fpscr, - const char* func) { + u32 exceptions, const char* func) { u64 significand, incr; int exponent, shift, underflow; u32 rmode; - u32 exceptions = 0; vfp_double_dump("pack: in", vd); @@ -360,7 +359,8 @@ static u32 vfp_double_fsqrt(ARMul_State* state, int dd, int unused, int dm, u32 } vdd.significand = vfp_shiftright64jamming(vdd.significand, 1); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fsqrt"); + exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, 0, "fsqrt"); + return exceptions; } @@ -492,8 +492,7 @@ static u32 vfp_double_fcvts(ARMul_State* state, int sd, int unused, int dm, u32 else vsd.exponent = vdm.exponent - (1023 - 127); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fcvts"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fcvts"); pack_nan: vfp_put_float(state, vfp_single_pack(&vsd), sd); @@ -502,7 +501,6 @@ pack_nan: static u32 vfp_double_fuito(ARMul_State* state, int dd, int unused, int dm, u32 fpscr) { struct vfp_double vdm; - u32 exceptions = 0; u32 m = vfp_get_float(state, dm); LOG_TRACE(Core_ARM11, "In %s", __FUNCTION__); @@ -510,13 +508,11 @@ static u32 vfp_double_fuito(ARMul_State* state, int dd, int unused, int dm, u32 vdm.exponent = 1023 + 63 - 1; vdm.significand = (u64)m; - exceptions |= vfp_double_normaliseround(state, dd, &vdm, fpscr, "fuito"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdm, fpscr, 0, "fuito"); } static u32 vfp_double_fsito(ARMul_State* state, int dd, int unused, int dm, u32 fpscr) { struct vfp_double vdm; - u32 exceptions = 0; u32 m = vfp_get_float(state, dm); LOG_TRACE(Core_ARM11, "In %s", __FUNCTION__); @@ -524,8 +520,7 @@ static u32 vfp_double_fsito(ARMul_State* state, int dd, int unused, int dm, u32 vdm.exponent = 1023 + 63 - 1; vdm.significand = vdm.sign ? (~m + 1) : m; - exceptions |= vfp_double_normaliseround(state, dd, &vdm, fpscr, "fsito"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdm, fpscr, 0, "fsito"); } static u32 vfp_double_ftoui(ARMul_State* state, int sd, int unused, int dm, u32 fpscr) { @@ -912,8 +907,7 @@ static u32 vfp_double_multiply_accumulate(ARMul_State* state, int dd, int dn, in exceptions |= vfp_double_add(&vdd, &vdn, &vdp, fpscr); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, func); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, func); } /* @@ -970,9 +964,7 @@ static u32 vfp_double_fmul(ARMul_State* state, int dd, int dn, int dm, u32 fpscr vfp_double_normalise_denormal(&vdm); exceptions |= vfp_double_multiply(&vdd, &vdn, &vdm, fpscr); - - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fmul"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fmul"); } /* @@ -994,8 +986,7 @@ static u32 vfp_double_fnmul(ARMul_State* state, int dd, int dn, int dm, u32 fpsc exceptions |= vfp_double_multiply(&vdd, &vdn, &vdm, fpscr); vdd.sign = vfp_sign_negate(vdd.sign); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fnmul"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fnmul"); } /* @@ -1016,8 +1007,7 @@ static u32 vfp_double_fadd(ARMul_State* state, int dd, int dn, int dm, u32 fpscr exceptions |= vfp_double_add(&vdd, &vdn, &vdm, fpscr); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fadd"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fadd"); } /* @@ -1043,8 +1033,7 @@ static u32 vfp_double_fsub(ARMul_State* state, int dd, int dn, int dm, u32 fpscr exceptions |= vfp_double_add(&vdd, &vdn, &vdm, fpscr); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fsub"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fsub"); } /* @@ -1126,9 +1115,7 @@ static u32 vfp_double_fdiv(ARMul_State* state, int dd, int dn, int dm, u32 fpscr } vdd.significand |= (reml != 0); } - - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fdiv"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, 0, "fdiv"); vdn_nan: exceptions |= vfp_propagate_nan(&vdd, &vdn, &vdm, fpscr); @@ -1154,8 +1141,7 @@ infinity: invalid: vfp_put_double(state, vfp_double_pack(&vfp_double_default_qnan), dd); - exceptions |= FPSCR_IOC; - return exceptions; + return FPSCR_IOC; } static struct op fops[] = { @@ -1230,7 +1216,7 @@ u32 vfp_double_cpdo(ARMul_State* state, u32 inst, u32 fpscr) { except = fop->fn(state, dest, dn, dm, fpscr); LOG_TRACE(Core_ARM11, "VFP: itr%d: exceptions=%08x", vecitr >> FPSCR_LENGTH_BIT, except); - exceptions |= except; + exceptions |= except & ~VFP_NAN_FLAG; /* * CHECK: It appears to be undefined whether we stop when diff --git a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp index 1590d89a4..ae5b325f0 100644 --- a/src/core/arm/skyeye_common/vfp/vfpsingle.cpp +++ b/src/core/arm/skyeye_common/vfp/vfpsingle.cpp @@ -83,10 +83,9 @@ 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, - const char* func) { + u32 exceptions, const char* func) { u32 significand, incr, rmode; int exponent, shift, underflow; - u32 exceptions = 0; vfp_single_dump("pack: in", vs); @@ -394,7 +393,8 @@ static u32 vfp_single_fsqrt(ARMul_State* state, int sd, int unused, s32 m, u32 f } vsd.significand = vfp_shiftright32jamming(vsd.significand, 1); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fsqrt"); + exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, 0, "fsqrt"); + return exceptions; } @@ -515,8 +515,7 @@ static u32 vfp_single_fcvtd(ARMul_State* state, int dd, int unused, s32 m, u32 f else vdd.exponent = vsm.exponent + (1023 - 127); - exceptions |= vfp_double_normaliseround(state, dd, &vdd, fpscr, "fcvtd"); - return exceptions; + return vfp_double_normaliseround(state, dd, &vdd, fpscr, exceptions, "fcvtd"); pack_nan: vfp_put_double(state, vfp_double_pack(&vdd), dd); @@ -525,26 +524,22 @@ 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; - exceptions |= vfp_single_normaliseround(state, sd, &vs, fpscr, "fuito"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vs, fpscr, 0, "fuito"); } 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; - exceptions |= vfp_single_normaliseround(state, sd, &vs, fpscr, "fsito"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vs, fpscr, 0, "fsito"); } static u32 vfp_single_ftoui(ARMul_State* state, int sd, int unused, s32 m, u32 fpscr) { @@ -936,8 +931,7 @@ static u32 vfp_single_multiply_accumulate(ARMul_State* state, int sd, int sn, s3 exceptions |= vfp_single_add(&vsd, &vsn, &vsp, fpscr); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, func); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, func); } /* @@ -948,10 +942,8 @@ static u32 vfp_single_multiply_accumulate(ARMul_State* state, int sd, int sn, s3 * sd = sd + (sn * sm) */ 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); - exceptions |= vfp_single_multiply_accumulate(state, sd, sn, m, fpscr, 0, "fmac"); - return exceptions; + return vfp_single_multiply_accumulate(state, sd, sn, m, fpscr, 0, "fmac"); } /* @@ -999,9 +991,7 @@ 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); - - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fmul"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fmul"); } /* @@ -1024,9 +1014,7 @@ 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); - - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fnmul"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fnmul"); } /* @@ -1052,8 +1040,7 @@ static u32 vfp_single_fadd(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr) exceptions |= vfp_single_add(&vsd, &vsn, &vsm, fpscr); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fadd"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, exceptions, "fadd"); } /* @@ -1148,8 +1135,7 @@ 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); - exceptions |= vfp_single_normaliseround(state, sd, &vsd, fpscr, "fdiv"); - return exceptions; + return vfp_single_normaliseround(state, sd, &vsd, fpscr, 0, "fdiv"); vsn_nan: exceptions |= vfp_propagate_nan(&vsd, &vsn, &vsm, fpscr); @@ -1175,8 +1161,7 @@ infinity: invalid: vfp_put_float(state, vfp_single_pack(&vfp_single_default_qnan), sd); - exceptions |= FPSCR_IOC; - return exceptions; + return FPSCR_IOC; } static struct op fops[] = { @@ -1246,7 +1231,7 @@ u32 vfp_single_cpdo(ARMul_State* state, u32 inst, u32 fpscr) { except = fop->fn(state, dest, sn, m, fpscr); LOG_TRACE(Core_ARM11, "itr%d: exceptions=%08x", vecitr >> FPSCR_LENGTH_BIT, except); - exceptions |= except; + exceptions |= except & ~VFP_NAN_FLAG; /* * CHECK: It appears to be undefined whether we stop when |