Dynamic Priority

[Adrian Lawrence <adrian.lawrence@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

URGENT syntax
~~~~~~~~~~~~~

Extend the current syntax to allow

PAR
Declaration(s)
  Process_list

where the scope of the Declaration is the list. Perhaps only
Urgent_declarations are permitted in this position? But this is the only
place that Urgent_declarations may appear?

Example:

CHAN OF INT routine:
PAR
URGENT CHAN OF INT fire_alarm:
  P0
  P1

URGENT channel arrays
~~~~~~~~~~~~~~~~~~~~~
URGENT [10] CHAN OF type talk : -- declares 10 channels at the same level
[10]URGENT CHAN OF eek alarm  : -- declares 10 channels with
                                --  priority alarm[i] > priority alarm[i+1]

Although CHAN is redundant unless we find other uses for URGENT, it should
be kept to make the code raedable, and to match SHARED CHAN and such.

---------------------------------------------------------------------------

Will this do? Any advance?

Adrian

-- 
A E Lawrence, MA., DPhil.  	adrian.lawrence@xxxxxxxxxxxxxx
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