Changeset 112581b7 in rtems


Ignore:
Timestamp:
Sep 15, 2005, 6:43:52 PM (14 years ago)
Author:
Jay Monkman <jtm@…>
Branches:
4.10, 4.11, 4.8, 4.9, master
Children:
e0f60887
Parents:
1d6b00e
Message:

2005-09-15 Jay Monkman

PR 365/rtems

  • supplements/arm/cpumodel.t: Removed unused ARM_HAS_CLZ macro
Location:
doc
Files:
2 edited

Legend:

Unmodified
Added
Removed
  • doc/ChangeLog

    r1d6b00e r112581b7  
     12005-09-15      Jay Monkman <jtm@lopingdog.com>
     2
     3        PR 365/rtems
     4        * supplements/arm/cpumodel.t: Removed unused ARM_HAS_CLZ macro.
     5
    162005-09-03      Ralf Corsepius <ralf.corsepius@rtems.org>
    27
  • doc/supplements/arm/cpumodel.t

    r1d6b00e r112581b7  
    6868@section Count Leading Zeroes Instruction
    6969
    70 The macro @code{ARM_HAS_CLZ} is set to 1 to indicate that
    71 the architectural version has the @code{clz} instruction.
    72 On ARM architectural version 5 and above, the count
    73 leading zeroes instruction (@code{clz}) is available and
    74 can be used to speed up the find first bit operation. 
    75 The use of this instruction significantly speeds up the
    76 scheduling associated with a thread blocking.
     70The ARMv5 and later has the count leading zeroes (@code{clz})
     71instruction which could be used to speed up the find first bit
     72operation.  The use of this instruction should significantly speed up
     73the scheduling associated with a thread blocking.
    7774
    7875@section Floating Point Unit
Note: See TracChangeset for help on using the changeset viewer.