Files used in the HCS II ROM

File		Description
------------------------------------------------------------------------
hcs.asm		The main ROM source code
rtos.asm	The file containing routines for creating a real-time
		operating system using the HD64180/Z80180/Z180/Z80S180 CPUs.
osmacros.asm	RTOS macros.  Included by hcs.asm, above.
ports.lib	A text file listing the port names and numbers used in the
		HD64180/Z80180/Z180/Z80S180 CPUs,  Included by hcs.asm
		and osmacros.asm, above.