

Note: This assembler is "Dumb" in it's handling of Address modes 5 and 6.
	Also sub-mode 7,2 behaves in a manner similar to mode 2; sub-mode
	7,3 behaves in a manner similiar to mode 6.

	Mode 5 appears as a subset of mode 6 where the index register has
	been suppressed. That is, if the index register is ommited from
	the source code line, mode 5 and mode 6 are indistingushable.  Some
	assemblers will always choose the shorter form, mode 5 in this case.
	This, however, prevents you from from selecting mode 6 with index
	register suppression. This assembler requires you to suppress a
	register using the "Z" prefix. You suppress a register by prepending
	a "Z" to the register name. The following are examples:

		($1234,a2,za0)		Suppress the Index register.
		($1234,za3,d7)		Suppress the Base register.
		($1234,zpc,a0)		Suppress the PC register.


		($1234,a2,za0)		Mode 6.
		($1234,a2)		Mode 5.
