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28 lines
377 B
C
28 lines
377 B
C
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#include <math.h>
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double atan2 (double __y, double __x);
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/*
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* @implemented
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*/
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double atan2 (double __y, double __x)
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{
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register double __val;
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#ifdef __GNUC__
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__asm __volatile__
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("fpatan\n\t"
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"fld %%st(0)"
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: "=t" (__val) : "0" (__x), "u" (__y));
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#else
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__asm
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{
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fld __y
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fld __x
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fpatan
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fstp __val
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}
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#endif /*__GNUC__*/
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return __val;
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}
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