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| author | Jay Monkman <jtm@smoothsmoothie.com> | 2005-09-15 18:43:52 +0000 |
|---|---|---|
| committer | Jay Monkman <jtm@smoothsmoothie.com> | 2005-09-15 18:43:52 +0000 |
| commit | 112581b78aa973e48e97a8bd36cf51dcd8b923dd (patch) | |
| tree | 5a77413980eea0c90f27675dfe99edc4da10f3c1 /doc/supplements/arm | |
| parent | 2005-09-15 Ralf Corsepius <ralf.corsepius@rtems.org> (diff) | |
| download | rtems-112581b78aa973e48e97a8bd36cf51dcd8b923dd.tar.bz2 | |
2005-09-15 Jay Monkman
PR 365/rtems
* supplements/arm/cpumodel.t: Removed unused ARM_HAS_CLZ macro
Diffstat (limited to 'doc/supplements/arm')
| -rw-r--r-- | doc/supplements/arm/cpumodel.t | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/doc/supplements/arm/cpumodel.t b/doc/supplements/arm/cpumodel.t index a5891950bc..af45d1a77b 100644 --- a/doc/supplements/arm/cpumodel.t +++ b/doc/supplements/arm/cpumodel.t @@ -67,13 +67,10 @@ __ARM_ARCH5TE__ "ARMv5TE" @section Count Leading Zeroes Instruction -The macro @code{ARM_HAS_CLZ} is set to 1 to indicate that -the architectural version has the @code{clz} instruction. -On ARM architectural version 5 and above, the count -leading zeroes instruction (@code{clz}) is available and -can be used to speed up the find first bit operation. -The use of this instruction significantly speeds up the -scheduling associated with a thread blocking. +The ARMv5 and later has the count leading zeroes (@code{clz}) +instruction which could be used to speed up the find first bit +operation. The use of this instruction should significantly speed up +the scheduling associated with a thread blocking. @section Floating Point Unit |