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-rw-r--r--src/arch/arm/insts/vfp.hh89
-rw-r--r--src/arch/arm/isa/insts/fp.isa50
2 files changed, 134 insertions, 5 deletions
diff --git a/src/arch/arm/insts/vfp.hh b/src/arch/arm/insts/vfp.hh
index 5a0ecf828..b0fc8b6dc 100644
--- a/src/arch/arm/insts/vfp.hh
+++ b/src/arch/arm/insts/vfp.hh
@@ -43,6 +43,7 @@
#include "arch/arm/insts/misc.hh"
#include "arch/arm/miscregs.hh"
#include <fenv.h>
+#include <cmath>
enum VfpMicroMode {
VfpNotAMicroop,
@@ -101,6 +102,26 @@ enum VfpRoundingMode
VfpRoundZero = 3
};
+template <class fpType>
+static inline void
+vfpFlushToZero(uint32_t &_fpscr, fpType &op)
+{
+ FPSCR fpscr = _fpscr;
+ if (fpscr.fz == 1 && (std::fpclassify(op) == FP_SUBNORMAL)) {
+ fpscr.idc = 1;
+ op = 0;
+ }
+ _fpscr = fpscr;
+}
+
+template <class fpType>
+static inline void
+vfpFlushToZero(uint32_t &fpscr, fpType &op1, fpType &op2)
+{
+ vfpFlushToZero(fpscr, op1);
+ vfpFlushToZero(fpscr, op2);
+}
+
static inline uint64_t
vfpFpSToFixed(float val, bool isSigned, bool half, uint8_t imm)
{
@@ -108,24 +129,41 @@ vfpFpSToFixed(float val, bool isSigned, bool half, uint8_t imm)
val = val * powf(2.0, imm);
__asm__ __volatile__("" : "=m" (val) : "m" (val));
feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (val) : "m" (val));
+ float origVal = val;
+ val = rintf(val);
+ int fpType = std::fpclassify(val);
+ if (fpType == FP_SUBNORMAL || fpType == FP_NAN) {
+ if (fpType == FP_NAN) {
+ feraiseexcept(FeInvalid);
+ }
+ val = 0.0;
+ } else if (origVal != val) {
+ feraiseexcept(FeInexact);
+ }
+
if (isSigned) {
if (half) {
if ((double)val < (int16_t)(1 << 15)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int16_t)(1 << 15);
}
if ((double)val > (int16_t)mask(15)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int16_t)mask(15);
}
return (int16_t)val;
} else {
if ((double)val < (int32_t)(1 << 31)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int32_t)(1 << 31);
}
if ((double)val > (int32_t)mask(31)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int32_t)mask(31);
}
return (int32_t)val;
@@ -134,20 +172,24 @@ vfpFpSToFixed(float val, bool isSigned, bool half, uint8_t imm)
if (half) {
if ((double)val < 0) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return 0;
}
if ((double)val > (mask(16))) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return mask(16);
}
return (uint16_t)val;
} else {
if ((double)val < 0) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return 0;
}
if ((double)val > (mask(32))) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return mask(32);
}
return (uint32_t)val;
@@ -161,7 +203,11 @@ vfpUFixedToFpS(uint32_t val, bool half, uint8_t imm)
fesetround(FeRoundNearest);
if (half)
val = (uint16_t)val;
- return val / powf(2.0, imm);
+ float scale = powf(2.0, imm);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ return val / scale;
}
static inline float
@@ -170,34 +216,55 @@ vfpSFixedToFpS(int32_t val, bool half, uint8_t imm)
fesetround(FeRoundNearest);
if (half)
val = sext<16>(val & mask(16));
- return val / powf(2.0, imm);
+ float scale = powf(2.0, imm);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ return val / scale;
}
static inline uint64_t
vfpFpDToFixed(double val, bool isSigned, bool half, uint8_t imm)
{
- fesetround(FeRoundZero);
+ fesetround(FeRoundNearest);
val = val * pow(2.0, imm);
__asm__ __volatile__("" : "=m" (val) : "m" (val));
+ fesetround(FeRoundZero);
feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (val) : "m" (val));
+ double origVal = val;
+ val = rint(val);
+ int fpType = std::fpclassify(val);
+ if (fpType == FP_SUBNORMAL || fpType == FP_NAN) {
+ if (fpType == FP_NAN) {
+ feraiseexcept(FeInvalid);
+ }
+ val = 0.0;
+ } else if (origVal != val) {
+ feraiseexcept(FeInexact);
+ }
if (isSigned) {
if (half) {
if (val < (int16_t)(1 << 15)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int16_t)(1 << 15);
}
if (val > (int16_t)mask(15)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int16_t)mask(15);
}
return (int16_t)val;
} else {
if (val < (int32_t)(1 << 31)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int32_t)(1 << 31);
}
if (val > (int32_t)mask(31)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return (int32_t)mask(31);
}
return (int32_t)val;
@@ -206,20 +273,24 @@ vfpFpDToFixed(double val, bool isSigned, bool half, uint8_t imm)
if (half) {
if (val < 0) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return 0;
}
if (val > mask(16)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return mask(16);
}
return (uint16_t)val;
} else {
if (val < 0) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return 0;
}
if (val > mask(32)) {
feraiseexcept(FeInvalid);
+ feclearexcept(FeInexact);
return mask(32);
}
return (uint32_t)val;
@@ -233,7 +304,11 @@ vfpUFixedToFpD(uint32_t val, bool half, uint8_t imm)
fesetround(FeRoundNearest);
if (half)
val = (uint16_t)val;
- return val / pow(2.0, imm);
+ double scale = pow(2.0, imm);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ return val / scale;
}
static inline double
@@ -242,7 +317,11 @@ vfpSFixedToFpD(int32_t val, bool half, uint8_t imm)
fesetround(FeRoundNearest);
if (half)
val = sext<16>(val & mask(16));
- return val / pow(2.0, imm);
+ double scale = pow(2.0, imm);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ feclearexcept(FeAllExceptions);
+ __asm__ __volatile__("" : "=m" (scale) : "m" (scale));
+ return val / scale;
}
typedef int VfpSavedState;
diff --git a/src/arch/arm/isa/insts/fp.isa b/src/arch/arm/isa/insts/fp.isa
index 6503e05f1..cd1ddc498 100644
--- a/src/arch/arm/isa/insts/fp.isa
+++ b/src/arch/arm/isa/insts/fp.isa
@@ -383,6 +383,7 @@ let {{
exec_output = ""
vmulSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest = FpOp1 * FpOp2;
@@ -403,6 +404,7 @@ let {{
IntDoubleUnion cOp1, cOp2, cDest;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
cDest.fp = cOp1.fp * cOp2.fp;
@@ -471,6 +473,7 @@ let {{
exec_output += PredOpExecute.subst(vabsDIop);
vaddSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest = FpOp1 + FpOp2;
@@ -488,6 +491,7 @@ let {{
IntDoubleUnion cOp1, cOp2, cDest;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
cDest.fp = cOp1.fp + cOp2.fp;
@@ -504,6 +508,7 @@ let {{
exec_output += PredOpExecute.subst(vaddDIop);
vsubSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest = FpOp1 - FpOp2;
@@ -521,6 +526,7 @@ let {{
IntDoubleUnion cOp1, cOp2, cDest;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
cDest.fp = cOp1.fp - cOp2.fp;
@@ -537,6 +543,7 @@ let {{
exec_output += PredOpExecute.subst(vsubDIop);
vdivSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest = FpOp1 / FpOp2;
@@ -554,6 +561,7 @@ let {{
IntDoubleUnion cOp1, cOp2, cDest;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cDest.fp));
cDest.fp = cOp1.fp / cOp2.fp;
@@ -570,6 +578,7 @@ let {{
exec_output += PredOpExecute.subst(vdivDIop);
vsqrtSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest = sqrtf(FpOp1);
@@ -589,6 +598,7 @@ let {{
vsqrtDCode = '''
IntDoubleUnion cOp1, cDest;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cDest.fp));
cDest.fp = sqrt(cOp1.fp);
@@ -615,12 +625,14 @@ let {{
exec_output = ""
vmlaSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
float mid = FpOp1 * FpOp2;
if ((isinf(FpOp1) && FpOp2 == 0) || (isinf(FpOp2) && FpOp1 == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, FpDest, mid);
FpDest = FpDest + mid;
__asm__ __volatile__("" :: "m" (FpDest));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -637,6 +649,7 @@ let {{
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
double mid = cOp1.fp * cOp2.fp;
@@ -644,6 +657,7 @@ let {{
(isinf(cOp2.fp) && cOp1.fp == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, cDest.fp, mid);
cDest.fp = cDest.fp + mid;
__asm__ __volatile__("" :: "m" (cDest.fp));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -658,12 +672,14 @@ let {{
exec_output += PredOpExecute.subst(vmlaDIop);
vmlsSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
float mid = FpOp1 * FpOp2;
if ((isinf(FpOp1) && FpOp2 == 0) || (isinf(FpOp2) && FpOp1 == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, FpDest, mid);
FpDest = FpDest - mid;
__asm__ __volatile__("" :: "m" (FpDest));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -680,6 +696,7 @@ let {{
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
double mid = cOp1.fp * cOp2.fp;
@@ -688,6 +705,7 @@ let {{
mid = NAN;
}
cDest.fp = cDest.fp - mid;
+ vfpFlushToZero(Fpscr, cDest.fp, mid);
__asm__ __volatile__("" :: "m" (cDest.fp));
Fpscr = setVfpFpscr(Fpscr, state);
FpDestP0.uw = cDest.bits;
@@ -701,12 +719,14 @@ let {{
exec_output += PredOpExecute.subst(vmlsDIop);
vnmlaSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
float mid = FpOp1 * FpOp2;
if ((isinf(FpOp1) && FpOp2 == 0) || (isinf(FpOp2) && FpOp1 == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, FpDest, mid);
FpDest = -FpDest - mid;
__asm__ __volatile__("" :: "m" (FpDest));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -723,6 +743,7 @@ let {{
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
double mid = cOp1.fp * cOp2.fp;
@@ -730,6 +751,7 @@ let {{
(isinf(cOp2.fp) && cOp1.fp == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, cDest.fp, mid);
cDest.fp = -cDest.fp - mid;
__asm__ __volatile__("" :: "m" (cDest.fp));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -744,12 +766,14 @@ let {{
exec_output += PredOpExecute.subst(vnmlaDIop);
vnmlsSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
float mid = FpOp1 * FpOp2;
if ((isinf(FpOp1) && FpOp2 == 0) || (isinf(FpOp2) && FpOp1 == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, FpDest, mid);
FpDest = -FpDest + mid;
__asm__ __volatile__("" :: "m" (FpDest));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -766,6 +790,7 @@ let {{
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
double mid = cOp1.fp * cOp2.fp;
@@ -773,6 +798,7 @@ let {{
(isinf(cOp2.fp) && cOp1.fp == 0)) {
mid = NAN;
}
+ vfpFlushToZero(Fpscr, cDest.fp, mid);
cDest.fp = -cDest.fp + mid;
__asm__ __volatile__("" :: "m" (cDest.fp));
Fpscr = setVfpFpscr(Fpscr, state);
@@ -787,6 +813,7 @@ let {{
exec_output += PredOpExecute.subst(vnmlsDIop);
vnmulSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1, FpOp2);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
float mid = FpOp1 * FpOp2;
@@ -809,6 +836,7 @@ let {{
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
cOp2.bits = ((uint64_t)FpOp2P0.uw | ((uint64_t)FpOp2P1.uw << 32));
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp, cOp2.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
double mid = cOp1.fp * cOp2.fp;
@@ -899,6 +927,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtSIntFpDIop);
vcvtFpUIntSRCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.uw = FpOp1;
@@ -915,6 +944,7 @@ let {{
vcvtFpUIntDRCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
uint64_t result = cOp1.fp;
@@ -930,6 +960,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtFpUIntDRIop);
vcvtFpSIntSRCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.sw = FpOp1;
@@ -946,6 +977,7 @@ let {{
vcvtFpSIntDRCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
int64_t result = cOp1.fp;
@@ -961,6 +993,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtFpSIntDRIop);
vcvtFpUIntSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
fesetround(FeRoundZero);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
@@ -978,6 +1011,7 @@ let {{
vcvtFpUIntDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
fesetround(FeRoundZero);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
@@ -994,6 +1028,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtFpUIntDIop);
vcvtFpSIntSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
fesetround(FeRoundZero);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
@@ -1011,6 +1046,7 @@ let {{
vcvtFpSIntDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
fesetround(FeRoundZero);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
@@ -1028,6 +1064,7 @@ let {{
vcvtFpSFpDCode = '''
IntDoubleUnion cDest;
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
cDest.fp = FpOp1;
@@ -1046,6 +1083,7 @@ let {{
vcvtFpDFpSCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
FpDest = cOp1.fp;
@@ -1061,6 +1099,7 @@ let {{
vcmpSCode = '''
FPSCR fpscr = Fpscr;
+ vfpFlushToZero(Fpscr, FpDest, FpOp1);
if (FpDest == FpOp1) {
fpscr.n = 0; fpscr.z = 1; fpscr.c = 1; fpscr.v = 0;
} else if (FpDest < FpOp1) {
@@ -1083,6 +1122,7 @@ let {{
IntDoubleUnion cOp1, cDest;
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cDest.fp, cOp1.fp);
FPSCR fpscr = Fpscr;
if (cDest.fp == cOp1.fp) {
fpscr.n = 0; fpscr.z = 1; fpscr.c = 1; fpscr.v = 0;
@@ -1104,6 +1144,7 @@ let {{
vcmpZeroSCode = '''
FPSCR fpscr = Fpscr;
+ vfpFlushToZero(Fpscr, FpDest);
if (FpDest == imm) {
fpscr.n = 0; fpscr.z = 1; fpscr.c = 1; fpscr.v = 0;
} else if (FpDest < imm) {
@@ -1125,6 +1166,7 @@ let {{
vcmpZeroDCode = '''
IntDoubleUnion cDest;
cDest.bits = ((uint64_t)FpDestP0.uw | ((uint64_t)FpDestP1.uw << 32));
+ vfpFlushToZero(Fpscr, cDest.fp);
FPSCR fpscr = Fpscr;
if (cDest.fp == imm) {
fpscr.n = 0; fpscr.z = 1; fpscr.c = 1; fpscr.v = 0;
@@ -1152,6 +1194,7 @@ let {{
exec_output = ""
vcvtFpSFixedSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.sw = vfpFpSToFixed(FpOp1, true, false, imm);
@@ -1168,6 +1211,7 @@ let {{
vcvtFpSFixedDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
uint64_t mid = vfpFpDToFixed(cOp1.fp, true, false, imm);
@@ -1184,6 +1228,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtFpSFixedDIop);
vcvtFpUFixedSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.uw = vfpFpSToFixed(FpOp1, false, false, imm);
@@ -1200,6 +1245,7 @@ let {{
vcvtFpUFixedDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
uint64_t mid = vfpFpDToFixed(cOp1.fp, false, false, imm);
@@ -1280,6 +1326,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtUFixedFpDIop);
vcvtFpSHFixedSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.sh = vfpFpSToFixed(FpOp1, true, true, imm);
@@ -1297,6 +1344,7 @@ let {{
vcvtFpSHFixedDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
uint64_t result = vfpFpDToFixed(cOp1.fp, true, true, imm);
@@ -1314,6 +1362,7 @@ let {{
exec_output += PredOpExecute.subst(vcvtFpSHFixedDIop);
vcvtFpUHFixedSCode = '''
+ vfpFlushToZero(Fpscr, FpOp1);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (FpOp1) : "m" (FpOp1));
FpDest.uh = vfpFpSToFixed(FpOp1, false, true, imm);
@@ -1331,6 +1380,7 @@ let {{
vcvtFpUHFixedDCode = '''
IntDoubleUnion cOp1;
cOp1.bits = ((uint64_t)FpOp1P0.uw | ((uint64_t)FpOp1P1.uw << 32));
+ vfpFlushToZero(Fpscr, cOp1.fp);
VfpSavedState state = prepVfpFpscr(Fpscr);
__asm__ __volatile__("" : "=m" (cOp1.fp) : "m" (cOp1.fp));
uint64_t mid = vfpFpDToFixed(cOp1.fp, false, true, imm);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 02:54:02 +0000