zig/src/softfloat_ext.cpp
antlilja 1157ee1307 Improve builtin op support for f128/comptime_float
* Add support for fabs, floor, ceil, trunc and round
* Add behavior tests
2020-06-17 17:35:45 +02:00

25 lines
638 B
C++

#include "softfloat_ext.hpp"
extern "C" {
#include "softfloat.h"
}
void f128M_abs(const float128_t *aPtr, float128_t *zPtr) {
float128_t zero_float;
ui32_to_f128M(0, &zero_float);
if (f128M_lt(aPtr, &zero_float)) {
f128M_sub(&zero_float, aPtr, zPtr);
} else {
*zPtr = *aPtr;
}
}
void f128M_trunc(const float128_t *aPtr, float128_t *zPtr) {
float128_t zero_float;
ui32_to_f128M(0, &zero_float);
if (f128M_lt(aPtr, &zero_float)) {
f128M_roundToInt(aPtr, softfloat_round_max, false, zPtr);
} else {
f128M_roundToInt(aPtr, softfloat_round_min, false, zPtr);
}
}