prepared cpu test files for future change
fully support 16-bit branches of 65ce02/4502/m65 in v0.98
added another test
added tests for checking range of branches
amended description of 0.98 dialect
The reason for the "number does not fit" error is this: "!$c0" evaluates to 0xffffff3f (on a 32-bit system) or 0xffffffffffffff3f (on a 64-bit system). So in a case like this, you could use 255 - $c0 or $c0 XOR $ff instead to flip all bits.
fixed confusing "no string given" error message, now there are separate
added a comment on where to fix a bug