r2176 (2020-03-23)
==================

There were quite many changes in trunk so it's time to release another version.

**Changes**

* Removed -Wtype-mixing 
  It was a transitional warning just in case someone relied on an undocumented
  tuple/list mixing which changed earlier.
* Floor rounding is used by default now, added -Wfloat-round
  The old method was to truncate but it was not consistent with the integer
  division and was problematic when using floating point to represent
  fixed point numbers. The difference only shows for negative numbers.
  Just to be on the safe side there's a new warning now for cases where
  the programmer could use one of the rounding functions explicitly to avoid
  a rounding ambiguity.
* Handling of address space wraps in calculations
  There are various address space wraps depending on the CPU. As an example the
  zero page may wrap or may not with indexed addressing. 64tass now tries to
  wrap when an offset is applied to an address to keep it in the same address
  space. E.g. a label at $10 in the expression lda label-$20,x results in
  lda $f0,x for a 6502 but lda $fffff0,x for a 65816. In all cases there are
  warnings issued for such an ambiguity. If it's intentional it may be
  suppressed but usually it's not.
* -Wmem-wrap and -Wpc-wrap renamed now to -Wwrap-mem and -Wwrap-pc
  To make them in line with the other bunch of new -Wwrap-something switches.
  Please update your build scripts. They won't fail just yet but may in future.
* Only --export-labels references labels
  Listing labels incorrectly referenced .proc blocks and so just by doing a
  label list unused .proc blocks got suddenly compiled in. This is unexpected
  and should not happen for a simple label list therefore it won't any more. If
  otherwise unused .proc blocks are needed in the label listing please add the
  new --export-labels option to get them listed and compiled.
* Star is finally a label now
  Before it was only a number but as the theory goes it should be the
  memory location at the beginning of the line. This means label = \* + 1
  constructs are now correctly referring to memory locations.
* Variables are not listed in VICE label list any more
  They are ambiguous as may be assigned multiple times and usually don't refer
  to memory locations
* Dictionaries are order preserving and iterable now
  Earlier order was undefined.
* I/O error messages or in C locale now
  As the rest of the messages aren't localized either.

**New**

* Add -Wmacro-prefix
  Warns about macro calls without any prefix in front
* Add WDM opcode
  It was requested for 65816
* Added .while and .bwhile
  Could be done with .for before but it's cleaner this way
* Add .breakif and .continueif
  Simplifies .if .break .fi and .if .continue .fi sequences
* Functions got a namespace
  The function itself can hold symbols now so there's no need for an
  additional label just to store data across invocations. That is
  "functionname.stuff := 4" works now.
* Lists can be used as keys in dictionaries
  On query they need to be put into a list of course
* CPA alias was added for CMP
  For consistency with CPX and CPY.
* Added --macro-caret-diag
  Normally the diagnostic message is displayed along with the line causing it.
  There was an option to suppress the line display for those who don't want
  this but that makes debugging of macro expansions hard as the source file only
  contains the unexpanded macro. This option is a middle ground to display
  faulty lines only for macros.
* Added --vice-labels-numeric
  Normally only memory locations are included to avoid numeric constant
  definitions in the listing but if you have a lot of label = $3000 style
  definitions this is for you.
* Dictionaries are concatenable now
  There was hack to add entries by using the splat feature but the simpler
  {1:2}..{2:3} works now too.
* Dictionaries are sortable
  Now that the order is preserved and they are iterable this makes sense
* Multiple output files can be generated now
  By using multiple "--output" parameters. The output format and the section used
  may be varied of course.
* Broadcast works with format() as well
  It's now possible to format values in a list and the result is a list of
  formatted values
* Added --make-phony command line option
  This is useful for automatic dependency generation purposes for Makefiles.
* Added .with/.endwith
  This allows to access symbols of another namespace without changing the
  current one. Unlike .namespace/.endn which does that.

**Fixes**

* Now @b and @w works for branches
  It can be used to prevent automatic long branches where it'd be bad
* Fix AHX/SHA mode
  Wrong addressing mode was used
* Leading zeros warning message suppression was corrected
  Due to a copy mistake it was -Wimmediate instead of -Wleading-zeros
* Improve double definition error handling
  It worked before as well but caused so additional errors
* The "Too early to reference" error is gone now
  Now nothing is to early to reference
* Listing now contains returned values
  The results of function return values are in the listing now
* Unused .proc labels not in listing any more
  If unused technically the don't exists and should not be there
* Improved macro diagnostic message position for macros
  In many cases now the diagnostic messages are issued at the macro invocation
  instead in the macro body. At least when it seems like the problem is due to
  wrong parametrization.
* Addressing mode and size messages improved
  They display the opcode now which can't have that addressing mode or size
* Diagnostic backtrace now omitted for trivial cases
  This cuts back on the useless clutter for diagnostic messages in a multi file
  project
* Inverse command line options added for consistency
  For example there was a --quiet but no --no-quiet.
* VICE label lists omit duplicate entries now
  The monitor can only display one of them
* Various diagnostic message location improvements
  Some diagnostic messages pointed to the directive instead of it's parameter
* Functions may be created anywhere
  There were limitations on where functions may be defined but it's sorted now.
* Struct offsets are numbers now
  Of course they are but they were addresses earlier which caused -Wimmediate
  to not trigger on them.
* In some cases a missing .ends was not reported
  Now it is