[Coco] Memory Map

[T. Franklin]

The ORG (Origin) directive is a requirement for assembly. But, Edtasm will automatically place the code if the ORG directive
is omitted. Not all assemblers will do this. Some will generate an error and some will default to $0000. Your approach to using a
memory map and knowing the system you are writing assembly code for is the correct one. Unlike BASIC or other languages,
assemblers is a very unforgiving language.