diff options
| author | neal <neal> | 2007-10-26 08:44:04 +0000 |
|---|---|---|
| committer | neal <neal> | 2007-10-26 08:44:04 +0000 |
| commit | e6fd7b068116ee5d4477bd1bd28b81c1bc973335 (patch) | |
| tree | 3ab8c800f143fc21993a6a895399bd509c07b671 /libl4/l4 | |
| parent | 0281ec92a5fbc2be3c1b871388275a72751e61ff (diff) | |
2007-10-26 Neal H. Walfield <neal@gnu.org>
* l4/math.h (_L4_msb64): New function.
(_L4_lsb64): Likewise.
* l4/gnu/math.h (l4_msb64): Likewise.
(l4_lsb64): Likewise.
Diffstat (limited to 'libl4/l4')
| -rw-r--r-- | libl4/l4/gnu/math.h | 16 | ||||
| -rw-r--r-- | libl4/l4/math.h | 31 |
2 files changed, 45 insertions, 2 deletions
diff --git a/libl4/l4/gnu/math.h b/libl4/l4/gnu/math.h index e91c6dc..42b4a84 100644 --- a/libl4/l4/gnu/math.h +++ b/libl4/l4/gnu/math.h @@ -1,5 +1,5 @@ /* l4/gnu/math.h - Public GNU interface for L4 mathematical functions. - Copyright (C) 2004 Free Software Foundation, Inc. + Copyright (C) 2004, 2007 Free Software Foundation, Inc. Written by Marcus Brinkmann <marcus@gnu.org>. This file is part of the GNU L4 library. @@ -31,6 +31,13 @@ l4_msb (l4_word_t data) return _L4_msb (data); } +static inline l4_word_t +_L4_attribute_always_inline +l4_msb64 (l4_uint64_t data) +{ + return _L4_msb64 (data); +} + static inline l4_word_t _L4_attribute_always_inline @@ -38,3 +45,10 @@ l4_lsb (l4_word_t data) { return _L4_lsb (data); } + +static inline l4_word_t +_L4_attribute_always_inline +l4_lsb64 (l4_uint64_t data) +{ + return _L4_lsb64 (data); +} diff --git a/libl4/l4/math.h b/libl4/l4/math.h index 7ae6ae5..f5a2a3c 100644 --- a/libl4/l4/math.h +++ b/libl4/l4/math.h @@ -1,5 +1,5 @@ /* l4/math.h - Public interface to L4 mathematical support functions. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2007 Free Software Foundation, Inc. Written by Marcus Brinkmann <marcus@gnu.org>. This file is part of the GNU L4 library. @@ -72,6 +72,19 @@ _L4_msb (_L4_word_t data) return 0; } +static inline _L4_word_t +_L4_attribute_always_inline +_L4_msb64 (_L4_uint64_t data) +{ +#if L4_WORDSIZE == 64 + return _L4_msb (data); +#else + int d = _L4_msb (data >> 32); + if (d) + return d + 32; + return _L4_msb (data); +#endif +} /* Return 0 if DATA is 0, or the bit number of the least significant bit set in DATA. The least significant bit is 1, the most @@ -113,6 +126,22 @@ _L4_lsb (_L4_word_t data) return 0; } +static inline _L4_word_t +_L4_attribute_always_inline +_L4_lsb64 (_L4_uint64_t data) +{ +#if L4_WORDSIZE == 64 + return _L4_lsb (data); +#else + int d = _L4_lsb (data); + if (d) + return d; + d = _L4_lsb (data >> 32); + if (d) + return d + 32; + return 0; +#endif +} /* Now incorporate the public interfaces the user has selected. */ #ifdef _L4_INTERFACE_GNU |