mdk -- History of visible changes.

Copyright (C) 2000, jose antonio ortega ruiz <jaortega@acm.org>
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Please send mdk bug reports to jaortega@acm.org.

*Version 0.2

** mixvm provides virtual execution time statistics after each
   invocation of run or next.

** mixvm can trace instructions as they are executed. tron/troff
   commands turn off/off instruction tracing.

** mixvm accepts a new command, w2d, which computes the
   decimal value of a MIX word given as a series of
   bytes (e.g. - 01 00 34 32 22).

** symbols can be defined at the mixvm prompt with the
   new command ssym.

** mixvm accepts a new command, weval, which allows the
   evaluation of MIXAL w-expressions.

** expressions containing strings of successive '*' are now
   correctly evaluated.

** When using block devices in mixvm, the buffers are now
   flushed after each OUT operation.

*Version 0.1.1 (18/11/00)

** MDK is now compilable in rpm-based linuxes.
** MDK fully compliant with Knuth's specification. In particular,
   local symbols are now properly handled in special cases such as 
     3H ORIG 3B 
   instructions. See samples/stress{1,2}.mixal.
** Future references affected by unary minus are accepted
   with a warning (they are banned in Knuth's specification).
   Also future refs in EQU directives are now properly handled.
   See samples/stress{3,4}.mixal.
** When mixvm executes a program and reaches the end of the
   available memory without encountering a HALT instruction,
   it halts anyway.

*Version 0.1 (31/10/00)

** Initial version

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Copyright (C) 2000, jose antonio ortega ruiz <jaortega@acm.org>

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