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2005-09-15 Jay Monkman

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PR 365/rtems
	* supplements/arm/cpumodel.t: Removed unused ARM_HAS_CLZ macro
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Jay Monkman
2005-09-15 18:43:52 +00:00
parent 1d6b00e996
commit 112581b78a
2 changed files with 9 additions and 7 deletions
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doc/ChangeLog
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@@ -1,3 +1,8 @@
2005-09-15 Jay Monkman <jtm@lopingdog.com>
PR 365/rtems
* supplements/arm/cpumodel.t: Removed unused ARM_HAS_CLZ macro.
2005-09-03 Ralf Corsepius <ralf.corsepius@rtems.org>
* FAQ/basic.texi, FAQ/bsp.texi, FAQ/build45.texi,

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doc/supplements/arm/cpumodel.t
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@@ -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