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| author | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
| commit | abfbdde177c3a7155070dda1b2cdc8292054cc26 (patch) | |
| tree | e021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/i386/fpu/s_floorl.S | |
| parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
| download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.xz glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.zip | |
Update.
Diffstat (limited to 'sysdeps/i386/fpu/s_floorl.S')
| -rw-r--r-- | sysdeps/i386/fpu/s_floorl.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/s_floorl.S b/sysdeps/i386/fpu/s_floorl.S new file mode 100644 index 0000000000..c2bf091d73 --- /dev/null +++ b/sysdeps/i386/fpu/s_floorl.S @@ -0,0 +1,33 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Changes for long double by Ulrich Drepper <drepper@cygnus.com> + * Public domain. + */ + +#include <machine/asm.h> + +RCSID("$NetBSD: $") + +ENTRY(__floorl) + fldt 4(%esp) + subl $8,%esp + + fstcw 4(%esp) /* store fpu control word */ + + /* We use here %edx although only the low 1 bits are defined. + But none of the operations should care and they are faster + than the 16 bit operations. */ + movl $0x400,%edx /* round towards -oo */ + orl 4(%esp),%edx + andl $0xf7ff,%edx + movl %edx,(%esp) + fldcw (%esp) /* load modified control word */ + + frndint /* round */ + + fldcw 4(%esp) /* restore original control word */ + + addl $8,%esp + ret +END (__floorl) +weak_alias (__floorl, floorl) |