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Make further progress on non-x86 support

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Justine Tunney 2023-05-08 21:38:30 -07:00
parent aef9a69a60
commit 036b9a0002
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GPG key ID: BE714B4575D6E328
155 changed files with 2307 additions and 653 deletions
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24
libc/tinymath/asinl.c
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@ -37,7 +37,7 @@ asm(".ident\t\"\\n\\n\
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
/* clang-format off */
// clang-format off
/* origin: FreeBSD /usr/src/lib/msun/src/e_asinl.c */
/*
@ -55,11 +55,15 @@ asm(".include \"libc/disclaimer.inc\"");
* Converted to long double by David Schultz <das@FreeBSD.ORG>.
*/
/**
* Returns arc sine of 𝑥.
*
* @define atan2(𝑥,sqrt((1-𝑥)*(1+𝑥)))
* @domain -1 ≤ 𝑥 ≤ 1
*/
long double asinl(long double x) {
#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
long double asinl(long double x)
{
return asin(x);
}
#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
#if LDBL_MANT_DIG == 64
#define CLOSETO1(u) (u.i.m>>56 >= 0xf7)
@ -69,14 +73,6 @@ long double asinl(long double x)
#define CLEARBOTTOM(u) (u.i.lo = 0)
#endif
/**
* Returns arc sine of 𝑥.
*
* @define atan2(𝑥,sqrt((1-𝑥)*(1+𝑥)))
* @domain -1 ≤ 𝑥 ≤ 1
*/
long double asinl(long double x)
{
union ldshape u = {x};
long double z, r, s;
uint16_t e = u.i.se & 0x7fff;
@ -111,6 +107,8 @@ long double asinl(long double x)
x = 0.5*pio2_hi-(2*s*r - (pio2_lo-2*c) - (0.5*pio2_hi-2*f));
}
return sign ? -x : x;
}
#else
#error "architecture unsupported"
#endif
}