diff options
| author | Andreas Jaeger <aj@suse.de> | 2003-11-13 16:41:19 +0000 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2003-11-13 16:41:19 +0000 |
| commit | 19c33b6ecca76cfaca0113485f63fc5e9f9a1c66 (patch) | |
| tree | c58cfdc40d9321dceb925754679be574f5dc8d31 /sysdeps/x86_64/fpu | |
| parent | e08dbbd198e80b85da3b7e060c5b0940b52337f7 (diff) | |
Update.
2003-11-13 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_TGKILL):
Define appropriately for x86_64.
(__ASSUME_UTIMES): Likewise.
(__ASSUME_FADVISE64_64_SYSCALL): Likewise.
(__ASSUME_CLONE_THREAD_FLAGS): Likewise.
* sysdeps/x86_64/fpu/s_ceill.S: New file.
Diffstat (limited to 'sysdeps/x86_64/fpu')
| -rw-r--r-- | sysdeps/x86_64/fpu/s_ceill.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_ceill.S b/sysdeps/x86_64/fpu/s_ceill.S new file mode 100644 index 0000000000..efc8dd995e --- /dev/null +++ b/sysdeps/x86_64/fpu/s_ceill.S @@ -0,0 +1,31 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Changes for long double by Ulrich Drepper <drepper@cygnus.com> + * Changes for x86-64 by Andreas Jaeger <aj@suse.de> + * Public domain. + */ + +#include <machine/asm.h> + + +ENTRY(__ceill) + fldt 8(%rsp) + + fstcw -4(%rsp) /* 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 $0x0800,%edx /* round towards +oo */ + orl -4(%rsp),%edx + andl $0xfbff,%edx + movl %edx,-8(%rsp) + fldcw -8(%rsp) /* load modified control word */ + + frndint /* round */ + + fldcw -4(%rsp) /* restore original control word */ + + ret +END (__ceill) +weak_alias (__ceill, ceill) |