i386][HEAD]

t NOTES

削除

# CPU_ENABLE_SSE enables SSE/MMX2 instructions support.  This is default
# on I686_CPU and above.
  • options CPU_ENABLE_SSE

commit log

Remove the CPU_ENABLE_SSE option from the i386 and pc98 architectures, as they are already default for I686_CPU for almost 3 years, and CPU_DISABLE_SSE always disables it. On the other hand, CPU_ENABLE_SSE does not work for I486_CPU and I586_CPU.
This commit has:

  • Removed the option from conf/options.*
  • Removed the option and comments from MD NOTES files
  • Simplified the CPU_ENABLE_SSE ifdef's so they don't deal with CPU_ENABLE_SSE from kernel configuration. (*)

For most users, this commit should be largely no-op. If you used to
place CPU_ENABLE_SSE into your kernel configuration for some reason,
it is time to remove it.

(*) The ifdef's of CPU_ENABLE_SSE are not removed at this point, since we need to change it to !defined(CPU_DISABLE_SSE) && defined(I686_CPU), not just !defined(CPU_DISABLE_SSE), if we really want to do so.

Discussed on
-arch
Approved by
re (scottl)

$FreeBSD: src/sys/i386/conf/NOTES,v 1.1202 2005/07/02 20:06:42 delphij Exp $