freebsd-dev/lib/msun/i387/s_truncl.S
Gordon Bergling a52f4499ae libm: Correct some typos in source code comments
- s/modfied/modified/
- s/minimun/minimum/

While here, fix some mandoc warnings:

- whitespace at end of input line
- unusual Xr punctuation
- missing comma before name

Obtained from:	NetBSD
MFC after:	5 days
2022-09-03 19:14:02 +02:00

30 lines
523 B
ArmAsm

/*
* Based on code written by J.T. Conklin <jtc@NetBSD.org>.
* Public domain.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$")
ENTRY(truncl)
pushl %ebp
movl %esp,%ebp
subl $8,%esp
fstcw -4(%ebp) /* store fpu control word */
movw -4(%ebp),%dx
orw $0x0c00,%dx /* round towards -oo */
movw %dx,-8(%ebp)
fldcw -8(%ebp) /* load modified control word */
fldt 8(%ebp) /* round */
frndint
fldcw -4(%ebp) /* restore original control word */
leave
ret
END(truncl)
.section .note.GNU-stack,"",%progbits