Today I am planning to check in the changes to add bte (byte or 8-bit integer) and wrd (word or platform dependent sized integer) types. Apart from very minor changes in the test output of pathfinder and monet5, I have not had to make any changes to sql, pathfinder, and monet5. The changes in M4 are substantial, however, and there are also some changes to mel (i.e. the buildtools).
The plan is to in the future change existing code to start using the new types where it makes sense. E.g. the PRE_LEVEL column in pathfinder could be changed to bte (or perhaps to sht, but that takes up more space), and the result of count() on a BAT should be changed to wrd (instead of int). Changes such as these are *not* part of this commit.
Another idea for the future is to get rid of the byte-sized chr type and replace it with a character type (possibly still called chr) that can hold any Unicode code point (i.e. a 32-bit entity). Again, this is not part of this commit.
I will add tags before and after the commit.