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BLUELOVETH 2023-09-22 16:45:37 +08:00
parent 7254c5a491
commit eefcf6b4df
1 changed files with 6 additions and 6 deletions
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12
include/pocketpy/common.h
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@ -172,15 +172,15 @@ struct PyObject;
inline PyObject* tag_float(f64 val){ inline PyObject* tag_float(f64 val){
BitsCvt decomposed(val); BitsCvt decomposed(val);
unsigned int exp_7b = decomposed._float_bits.exp; int exp_7b = decomposed._float_bits.exp - BitsCvt::C0;
if(exp_7b - BitsCvt::C0 < BitsCvt::C1){ if(exp_7b < BitsCvt::C1){
exp_7b = 0; exp_7b = BitsCvt::C1 - 1; // -63 + 63 = 0
decomposed._float_bits.mantissa = 0; decomposed._float_bits.mantissa = 0;
}else if(exp_7b - BitsCvt::C0 > BitsCvt::C2){ }else if(exp_7b > BitsCvt::C2){
exp_7b = BitsCvt::C0; exp_7b = BitsCvt::C2 + 1; // 64 + 63 = 127
if(!std::isnan(val)) decomposed._float_bits.mantissa = 0; if(!std::isnan(val)) decomposed._float_bits.mantissa = 0;
} }
decomposed._float_bits.exp = exp_7b - BitsCvt::C0 + BitsCvt::C2; decomposed._float_bits.exp = exp_7b + BitsCvt::C2;
decomposed._int = (decomposed._int << 1) | 0b01; decomposed._int = (decomposed._int << 1) | 0b01;
return reinterpret_cast<PyObject*>(decomposed._int); return reinterpret_cast<PyObject*>(decomposed._int);
} }