Supporting a new OS

macros: _NewOS, it will used at compile time

------------------------------------------------------------
OS & CPU definitions

sys.h:
#if defined(_PalmOS)
	...
#elif defined(_NewOS)
	... CPU FLAGS ...
	... OS FLAGS ...
#else
	...
#endif

------------------------------------------------------------
The driver for graphics & sound

dev_newos.c:
implementation of osd.h routines

------------------------------------------------------------
===== Non-compatible C library:
------------------------------------------------------------

mem.c:
	Memory manipulation routines

------------------------------------------------------------
device.c:

------------------------------------------------------------
panic.c:

------------------------------------------------------------
fs_stream.c/fs_serial.c:
	File I/O, FileSystem Manager, Serial I/O

------------------------------------------------------------
blib_func.c:
kwRND			- random numbers
kwFRE			- info about memory
kwTIMER			- seconds (and ticks)
kwTICKS			- ticks
kwTICKSPERSEC	- ticks per second
kwDATE			- date string
kwTIME			- time string

blib.c:
cmd_randomize()	- random numbers
