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Abstracted away from x86 intrinsics

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This commit is contained in:
tevador
2019-05-14 09:13:38 +02:00
parent 3dd21ea93d
commit 1aa7865619
10 changed files with 267 additions and 249 deletions
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src/instructions_portable.cpp
+22 -22
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@@ -123,32 +123,32 @@ along with RandomX. If not, see<http://www.gnu.org/licenses/>.
#define HAVE_SMULH
#endif
void setRoundMode(uint32_t rcflag) {
switch (rcflag & 3) {
case RoundDown:
setRoundMode_(FE_DOWNWARD);
break;
case RoundUp:
setRoundMode_(FE_UPWARD);
break;
case RoundToZero:
setRoundMode_(FE_TOWARDZERO);
break;
case RoundToNearest:
setRoundMode_(FE_TONEAREST);
break;
default:
UNREACHABLE;
#ifdef RANDOMX_DEFAULT_FENV
void rx_reset_float_state() {
setRoundMode_(FE_TONEAREST);
}
void rx_set_rounding_mode(uint32_t mode) {
switch (mode & 3) {
case RoundDown:
setRoundMode_(FE_DOWNWARD);
break;
case RoundUp:
setRoundMode_(FE_UPWARD);
break;
case RoundToZero:
setRoundMode_(FE_TOWARDZERO);
break;
case RoundToNearest:
setRoundMode_(FE_TONEAREST);
break;
default:
UNREACHABLE;
}
}
void initFpu() {
#ifdef __SSE2__
_mm_setcsr(0x9FC0); //Flush to zero, denormals are zero, default rounding mode, all exceptions disabled
#else
setRoundMode(FE_TONEAREST);
#endif
}
union double_ser_t {
double f;