diff options
| -rw-r--r-- | doc/ChangeLog | 5 | ||||
| -rw-r--r-- | doc/supplements/arm/cpumodel.t | 11 |
2 files changed, 9 insertions, 7 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog index 3b9aa3da8b..bc667e095e 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -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, 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 |