mirror of
https://github.com/c3lang/c3c.git
synced 2026-02-27 12:01:16 +00:00
First 0.7 update, removing all deprecated features.
This commit is contained in:
committed by
Christoffer Lerno
parent
cff6697818
commit
2a895ec7be
@@ -1,15 +1,15 @@
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double _fabs(double x) @weak @extern("fabs") @nostrip
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{
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ulong ix = bitcast(x, ulong);
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ix &= ~(1ul << 63);
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return bitcast(ix, double);
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}
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fn float _fabsf(float x) @weak @extern("fabsf") @nostrip
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{
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uint ix = bitcast(x, uint);
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ix &= 0x7fffffff;
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return bitcast(ix, float);
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}
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double _fabs(double x) @weak @extern("fabs") @nostrip
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{
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ulong ix = bitcast(x, ulong);
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ix &= ~(1ul << 63);
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return bitcast(ix, double);
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}
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fn float _fabsf(float x) @weak @extern("fabsf") @nostrip
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{
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uint ix = bitcast(x, uint);
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ix &= 0x7fffffff;
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return bitcast(ix, float);
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}
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@@ -1,59 +1,59 @@
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double frexp(double x, int* exp) @extern("frexp")
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{
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uint hx = x.high_word();
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uint ix = hx & 0x7fffffff;
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uint lx = x.low_word();
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if (ix >= 0x7ff00000 || (ix | lx) == 0)
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{
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*exp = 0;
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return x;
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}
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// exponent extraction and normalization
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int e = (int)((ix >> 20) & 0x7ff);
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if (e == 0)
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{
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// subnormal number
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x *= 0x1p64;
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hx = x.high_word();
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e = (int)((hx >> 20) & 0x7ff) - 64;
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}
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*exp = e - 1022;
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// set exponent to -1 (fraction in [0.5, 1))
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hx = (hx & 0x800fffff) | 0x3fe00000;
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{
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ulong rep = ((ulong)hx << 32) | lx;
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return bitcast(rep, double);
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}
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}
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fn float frexpf(float x, int* exp) @extern("frexpf")
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{
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uint ix = x.word();
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uint hx = ix & 0x7fffffff;
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if (hx >= 0x7f800000 || hx == 0)
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{
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*exp = 0;
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return x;
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}
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// exponent extraction and normalization
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int e = (int)((hx >> 23) & 0xff);
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if (e == 0)
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{
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// subnormal number
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x *= 0x1p64f;
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ix = x.word();
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e = (int)((ix >> 23) & 0xff) - 64;
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}
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*exp = e - 126;
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// set exponent to -1 (fraction in [0.5, 1))
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ix = (ix & 0x807fffff) | 0x3f000000;
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return bitcast(ix, float);
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}
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double frexp(double x, int* exp) @extern("frexp")
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{
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uint hx = x.high_word();
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uint ix = hx & 0x7fffffff;
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uint lx = x.low_word();
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if (ix >= 0x7ff00000 || (ix | lx) == 0)
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{
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*exp = 0;
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return x;
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}
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// exponent extraction and normalization
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int e = (int)((ix >> 20) & 0x7ff);
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if (e == 0)
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{
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// subnormal number
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x *= 0x1p64;
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hx = x.high_word();
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e = (int)((hx >> 20) & 0x7ff) - 64;
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}
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*exp = e - 1022;
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// set exponent to -1 (fraction in [0.5, 1))
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hx = (hx & 0x800fffff) | 0x3fe00000;
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{
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ulong rep = ((ulong)hx << 32) | lx;
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return bitcast(rep, double);
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}
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}
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fn float frexpf(float x, int* exp) @extern("frexpf")
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{
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uint ix = x.word();
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uint hx = ix & 0x7fffffff;
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if (hx >= 0x7f800000 || hx == 0)
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{
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*exp = 0;
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return x;
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}
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// exponent extraction and normalization
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int e = (int)((hx >> 23) & 0xff);
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if (e == 0)
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{
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// subnormal number
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x *= 0x1p64f;
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ix = x.word();
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e = (int)((ix >> 23) & 0xff) - 64;
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}
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*exp = e - 126;
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// set exponent to -1 (fraction in [0.5, 1))
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ix = (ix & 0x807fffff) | 0x3f000000;
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return bitcast(ix, float);
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}
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@@ -1,67 +1,67 @@
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double ldexp(double x, int exp) @extern("ldexp")
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{
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uint hx = x.high_word();
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int hexp = (int)((hx & 0x7ff00000) >> 20);
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if (hexp == 0x7ff) return x;
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if (hexp == 0)
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{
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// subnormal number handling
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x *= 0x1p64;
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hx = x.high_word();
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hexp = (int)((hx & 0x7ff00000) >> 20) - 64;
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}
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// new exponent calculation
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hexp += exp;
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if (hexp > 0x7fe) return x * double.inf;
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if (hexp < 1)
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{
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x *= 0x1p-1022;
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hexp += 1022;
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if (hexp < 1) x *= 0x1p-1022;
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return x;
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}
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// set new exponent
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hx = ((ulong)hx & 0x800fffff) | ((ulong)hexp << 20);
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{
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ulong rep = ((ulong)hx << 32) | x.low_word();
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return bitcast(rep, double);
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}
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}
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fn float ldexpf(float x, int exp) @extern("ldexpf")
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{
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uint ix = x.word();
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int hexp = (int)((ix & 0x7f800000) >> 23);
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if (hexp == 0xff) return x;
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if (hexp == 0)
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{
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// subnormal number handling
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x *= 0x1p64f;
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ix = x.word();
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hexp = (int)((ix & 0x7f800000) >> 23) - 64;
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}
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// new exponent calculation
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hexp += exp;
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if (hexp > 0xfe) return x * float.inf;
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if (hexp < 1)
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{
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x *= 0x1p-126f;
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hexp += 126;
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if (hexp < 1) x *= 0x1p-126f;
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return x;
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}
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// set new exponent
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ix = (ix & 0x807fffff) | (hexp << 23);
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return bitcast(ix, float);
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}
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module std::math::nolibc @if(env::NO_LIBC || $feature(C3_MATH));
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fn double ldexp(double x, int exp) @extern("ldexp")
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{
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uint hx = x.high_word();
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int hexp = (int)((hx & 0x7ff00000) >> 20);
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if (hexp == 0x7ff) return x;
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if (hexp == 0)
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{
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// subnormal number handling
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x *= 0x1p64;
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hx = x.high_word();
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hexp = (int)((hx & 0x7ff00000) >> 20) - 64;
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}
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// new exponent calculation
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hexp += exp;
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if (hexp > 0x7fe) return x * double.inf;
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if (hexp < 1)
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{
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x *= 0x1p-1022;
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hexp += 1022;
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if (hexp < 1) x *= 0x1p-1022;
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return x;
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}
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// set new exponent
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hx = ((ulong)hx & 0x800fffff) | ((ulong)hexp << 20);
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{
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ulong rep = ((ulong)hx << 32) | x.low_word();
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return bitcast(rep, double);
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}
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}
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fn float ldexpf(float x, int exp) @extern("ldexpf")
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{
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uint ix = x.word();
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int hexp = (int)((ix & 0x7f800000) >> 23);
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if (hexp == 0xff) return x;
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if (hexp == 0)
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{
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// subnormal number handling
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x *= 0x1p64f;
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ix = x.word();
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hexp = (int)((ix & 0x7f800000) >> 23) - 64;
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}
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// new exponent calculation
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hexp += exp;
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if (hexp > 0xfe) return x * float.inf;
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if (hexp < 1)
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{
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x *= 0x1p-126f;
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hexp += 126;
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if (hexp < 1) x *= 0x1p-126f;
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return x;
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}
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// set new exponent
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ix = (ix & 0x807fffff) | (hexp << 23);
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return bitcast(ix, float);
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}
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