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Add more math fixes

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This commit is contained in:
Justine Tunney 2021-03-06 11:41:01 -08:00
parent 11ec99931b
commit bfef17eb6d
27 changed files with 236 additions and 61 deletions
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26
libc/tinymath/asinl.S
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@ -17,7 +17,6 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/macros.internal.h"
.source __FILE__
// Returns arc sine of 𝑥.
//
@ -25,27 +24,18 @@
// @return result of computation on FPU stack in %st
// @define atan2(𝑥,sqrt((1-𝑥)*(1+𝑥)))
// @domain -1 ≤ 𝑥 ≤ 1
// @mode long,legacy
asinl: push %rbp
asinl: pushq %rbp
mov %rsp,%rbp
.profilable
fldl 16(%rbp)
fld %st
#ifdef __FAST_MATH__
fmul %st(1),%st
fsubrs .Lone(%rip)
#else
fldt 16(%rbp)
fld1
fsubp
fld1
fadd %st(2)
fld %st
fsub %st(2)
fxch
fadd %st(2)
fmulp
#endif
fsqrt
fpatan
pop %rbp
fpatan
leave
ret
.endfn asinl,globl
.rodata.cst4
.Lone: .float 1.0