21 lines
394 B
ArmAsm
21 lines
394 B
ArmAsm
|
! fpu_cw_get() - get FPU control word Author: Erik van der Kouwe
|
||
|
|
! fpu_cw_set() - set FPU control word 9 Dec 2009
|
||
|
|
.sect .text
|
||
|
|
.define _fpu_cw_get
|
||
|
|
.define _fpu_cw_set
|
||
|
|
|
||
|
|
! u16_t fpu_cw_get(void)
|
||
|
|
_fpu_cw_get:
|
||
|
|
! clear unused bits just to be sure
|
||
|
|
xor eax, eax
|
||
|
|
push eax
|
||
|
|
fstcw (esp)
|
||
|
|
pop eax
|
||
|
|
ret
|
||
|
|
|
||
|
|
! void fpu_cw_set(u16_t fpu_cw)
|
||
|
|
_fpu_cw_set:
|
||
|
|
! load control word from parameter
|
||
|
|
fldcw 4(esp)
|
||
|
|
ret
|