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[CRT] Add a generic C version of exp2(f) and use it for all architecture

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This commit is contained in:
Jérôme Gardou 2021-04-09 14:33:27 +02:00
parent a19ca409ae
commit 199adee3fe
4 changed files with 32 additions and 40 deletions
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38
sdk/lib/crt/math/i386/exp2_asm.s
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@ -1,38 +0,0 @@
#include <asm.inc>
PUBLIC _exp2
/* FUNCTIONS ***************************************************************/
.code
_exp2:
push ebp
mov ebp, esp
fld qword ptr [ebp + 8]
fxam
fstsw ax
fwait
sahf
jnp .not_inf
jnc .not_inf
test ah, 2
jz .done
fstp st
fldz
jmp .done
.not_inf:
fst st(1)
frndint
fxch st(1)
fsub st, st(1)
f2xm1
fld1
faddp st(1), st
fscale
fstp st(1)
.done:
pop ebp
ret
END