minix/lib/nbsd_libc/arch/x86_64/gen/flt_rounds.S
Gianluca Guida b6cbf7203b Import unmodified NetBSD libc in trunk
This patch imports the unmodified current version of NetBSD libc.
The NetBSD includes are in /nbsd_include, while the libc code itself is 
split between lib/nbsd_libc and common/lib/libc.
2011-02-14 19:36:03 +00:00

29 lines
522 B
ArmAsm

/* $NetBSD: flt_rounds.S,v 1.2 2002/06/06 23:04:35 fvdl Exp $ */
/*
* Written by J.T. Conklin, Apr 4, 1995
* Public domain.
*/
#include <machine/asm.h>
.text
_ALIGN_TEXT
_map:
.byte 1 /* round to nearest */
.byte 3 /* round to negative infinity */
.byte 2 /* round to positive infinity */
.byte 0 /* round to zero */
ENTRY(__flt_rounds)
fnstcw -4(%rsp)
movl -4(%rsp),%eax
shrl $10,%eax
andl $3,%eax
#ifdef PIC
leaq PIC_GOT(_map),%rcx
movb (%rcx,%rax,1),%al
#else
movb _map(,%rax,1),%al
#endif
ret