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Diffstat (limited to 'lib/msun/i387/s_floorf.S')
| -rw-r--r-- | lib/msun/i387/s_floorf.S | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/msun/i387/s_floorf.S b/lib/msun/i387/s_floorf.S new file mode 100644 index 0000000..e758d05 --- /dev/null +++ b/lib/msun/i387/s_floorf.S @@ -0,0 +1,32 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. + */ + +#include <machine/asm.h> + +__FBSDID("$FreeBSD$"); +/* RCSID("$NetBSD: s_floorf.S,v 1.3 1995/05/09 00:04:32 jtc Exp $") */ + +ENTRY(floorf) + pushl %ebp + movl %esp,%ebp + subl $8,%esp + + fstcw -4(%ebp) /* store fpu control word */ + movw -4(%ebp),%dx + orw $0x0400,%dx /* round towards -oo */ + andw $0xf7ff,%dx + movw %dx,-8(%ebp) + fldcw -8(%ebp) /* load modfied control word */ + + flds 8(%ebp); /* round */ + frndint + + fldcw -4(%ebp) /* restore original control word */ + + leave + ret +END(floorf) + + .section .note.GNU-stack,"",%progbits |
