Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-08-01 18:43:30 +00:00
Code Issues Projects Releases Packages Wiki Activity

[MSVCRTEX] Add some floating point functions for CLang build

Browse source 
Clang makes optimisations requiring functions not present in msvcrt
This commit is contained in:
Jérôme Gardou 2020-11-06 21:39:00 +01:00 • committed by Jérôme Gardou
parent 3936c3f19e
commit 15c9f63b65
2 changed files with 47 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

38
sdk/lib/crt/math/i386/exp2_asm.s Normal file
View file

@ -0,0 +1,38 @@
#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