K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2011-01-11T22:15:30.947634Z
K 7
svn:log
V 231
- Retire some unused ithread priorities: PI_TTYHIGH, PI_TAPE, and
  PI_DISKLOW.  While here, rename PI_TTYLOW to PI_TTY.
- Add a macro PI_SWI() that takes a SWI_* constant as an argument and
  returns the suitable thread priority.

END