note: pausing writes out zeros, doesn't restore previous values
	which is noticable


doubling length of writes:	still issue
removing rasterbars:		still issue
removing volume bars:		still issue
remove time update:		still issue
remove dead code:		still issue
remove title screen:		still issue
remove all graphics calls:	still issue
remove memory shuffling in back:still issue
remove keyboard:		still issue
remove all non-irq code:	still issue
remove all text print code	still issue
remove multi file (down to 973) still issue
remove dos33 code 		still issue
remove lz4 code			still issue
remove interrupt driven		still issue!?
play at 25Hz			still issue