| 37,8 → 37,8 |
|---|
| int expdiff; |
| __u32 exp1, exp2,mant1, mant2; |
| |
| expdiff=a.parts.exp - b.parts.exp; |
| if (expdiff<0) { |
| expdiff = a.parts.exp - b.parts.exp; |
| if (expdiff < 0) { |
| if (isFloat32NaN(b)) { |
| //TODO: fix SigNaN |
| if (isFloat32SigNaN(b)) { |
| 47,31 → 47,31 |
|---|
| return b; |
| }; |
| |
| if (b.parts.exp==0xFF) { |
| if (b.parts.exp == FLOAT32_MAX_EXPONENT) { |
| return b; |
| } |
| |
| mant1=b.parts.mantisa; |
| exp1=b.parts.exp; |
| mant2=a.parts.mantisa; |
| exp2=a.parts.exp; |
| expdiff*=-1; |
| mant1 = b.parts.mantisa; |
| exp1 = b.parts.exp; |
| mant2 = a.parts.mantisa; |
| exp2 = a.parts.exp; |
| expdiff *= -1; |
| } else { |
| if (isFloat32NaN(a)) { |
| //TODO: fix SigNaN |
| if ((isFloat32SigNaN(a))||(isFloat32SigNaN(b))) { |
| if (isFloat32SigNaN(a) || isFloat32SigNaN(b)) { |
| }; |
| return a; |
| }; |
| |
| if (a.parts.exp==0xFF) { |
| if (a.parts.exp == FLOAT32_MAX_EXPONENT) { |
| return a; |
| } |
| |
| mant1=a.parts.mantisa; |
| exp1=a.parts.exp; |
| mant2=b.parts.mantisa; |
| exp2=b.parts.exp; |
| mant1 = a.parts.mantisa; |
| exp1 = a.parts.exp; |
| mant2 = b.parts.mantisa; |
| exp2 = b.parts.exp; |
| }; |
| |
| if (exp1 == 0) { |
| 99,14 → 99,14 |
|---|
| mant1 <<= 6; |
| mant2 <<= 6; |
| |
| if (expdiff > 24) { |
| if (expdiff > (FLOAT32_MANTISA_SIZE + 1) ) { |
| goto done; |
| }; |
| |
| mant2>>=expdiff; |
| mant1+=mant2; |
| mant2 >>= expdiff; |
| mant1 += mant2; |
| done: |
| if (mant1 & (FLOAT32_HIDDEN_BIT_MASK << 6) ) { |
| if (mant1 & (FLOAT32_HIDDEN_BIT_MASK << 7) ) { |
| ++exp1; |
| mant1 >>= 1; |
| }; |
| 114,15 → 114,15 |
|---|
| /* rounding - if first bit after mantisa is set then round up */ |
| mant1 += (0x1 << 5); |
| |
| if (mant1 & (FLOAT32_HIDDEN_BIT_MASK << 6)) { |
| if (mant1 & (FLOAT32_HIDDEN_BIT_MASK << 7)) { |
| ++exp1; |
| mant1 >> =1; |
| mant1 >>= 1; |
| }; |
| |
| a.parts.exp = exp1; |
| |
| /*Clear hidden bit and shift */ |
| a.parts.mantisa = ((mant1>>6) & (~FLOAT32_HIDDEN_BIT_MASK)) ; |
| a.parts.mantisa = ((mant1 >> 6) & (~FLOAT32_HIDDEN_BIT_MASK)) ; |
| return a; |
| } |
| |
| 132,10 → 132,10 |
|---|
| float64 addFloat64(float64 a, float64 b) |
| { |
| int expdiff; |
| __u64 exp1,exp2,mant1,mant2; |
| __u64 exp1, exp2, mant1, mant2; |
| |
| expdiff=a.parts.exp - b.parts.exp; |
| if (expdiff<0) { |
| expdiff = a.parts.exp - b.parts.exp; |
| if (expdiff < 0) { |
| if (isFloat64NaN(b)) { |
| //TODO: fix SigNaN |
| if (isFloat64SigNaN(b)) { |
| 145,25 → 145,25 |
|---|
| }; |
| |
| /* b is infinity and a not */ |
| if (b.parts.exp==0x8FF) { |
| if (b.parts.exp == FLOAT64_MAX_EXPONENT ) { |
| return b; |
| } |
| |
| mant1=b.parts.mantisa; |
| exp1=b.parts.exp; |
| mant2=a.parts.mantisa; |
| exp2=a.parts.exp; |
| expdiff*=-1; |
| mant1 = b.parts.mantisa; |
| exp1 = b.parts.exp; |
| mant2 = a.parts.mantisa; |
| exp2 = a.parts.exp; |
| expdiff *= -1; |
| } else { |
| if (isFloat64NaN(a)) { |
| //TODO: fix SigNaN |
| if ((isFloat64SigNaN(a))||(isFloat64SigNaN(b))) { |
| if (isFloat64SigNaN(a) || isFloat64SigNaN(b)) { |
| }; |
| return a; |
| }; |
| |
| /* a is infinity and b not */ |
| if (a.parts.exp == 0x8FF) { |
| if (a.parts.exp == FLOAT64_MAX_EXPONENT ) { |
| return a; |
| } |
| |
| 200,7 → 200,7 |
|---|
| mant1 <<= 6; |
| mant2 <<= 6; |
| |
| if (expdiff > 53) { |
| if (expdiff > (FLOAT64_MANTISA_SIZE + 1) ) { |
| goto done; |
| }; |
| |
| 207,7 → 207,7 |
|---|
| mant2 >>= expdiff; |
| mant1 += mant2; |
| done: |
| if (mant1 & (FLOAT64_HIDDEN_BIT_MASK << 6) ) { |
| if (mant1 & (FLOAT64_HIDDEN_BIT_MASK << 7) ) { |
| ++exp1; |
| mant1 >>= 1; |
| }; |
| 215,14 → 215,14 |
|---|
| /* rounding - if first bit after mantisa is set then round up */ |
| mant1 += (0x1 << 5); |
| |
| if (mant1 & (FLOAT64_HIDDEN_BIT_MASK << 6)) { |
| if (mant1 & (FLOAT64_HIDDEN_BIT_MASK << 7)) { |
| ++exp1; |
| mant1 >> =1; |
| mant1 >>= 1; |
| }; |
| |
| a.parts.exp = exp1; |
| /*Clear hidden bit and shift */ |
| a.parts.mantisa = ( (mant1 >>6 ) & (~ (FLOAT64_HIDDEN_BIT_MASK))); |
| a.parts.mantisa = ( (mant1 >> 6 ) & (~FLOAT64_HIDDEN_BIT_MASK)); |
| return a; |
| } |
| |