Driver GSP Memory Map 				
-------------------------

TFR	0000 0000 to 000F FFFF (64K Words)	Shift Register Transfers 

POLY	0200 0000 to 020F FFFF (64K Words)	Fast Polygon Fills

CWR0		F400 0000   Write to Pixel Register (Used by Fast Polygon Fills)

CWR1		F480 0000   Control Bits latch on Address Writes (No Data)
		
		F480 0000	/TFR_SE = 1 	
		F480 0010	SCROLL = 0	
		F480 0020	PS0 = 0		
		F480 0030	PS1 = 0		
		F480 0040			
		F480 0050			
		F480 0060			
		F480 0070	LED = on	
		---------
		F480 0080	/TFR_SE = 0 	
		F480 0090	SCROLL = 1	
		F480 00A0	PS0 = 1		
		F480 00B0	PS1 = 1		
		F480 00C0			
		F480 00D0			
		F480 00E0			
		F480 00F0	LED = off	

CWR2, CRD2	F500 0000   R/W Color Table: Red (D8-D15) and Green (D0-D7)

CWR3, CRD3	F580 0000   R/W Color Table: Blue (DD0-D7) 

PMEM	FF80 0000 to FFFF FFFF (512K Words)		Normal Memory Accesses

Note: TFR, POLY, and PMEM are the SAME physical Memory. They just see it 
      organized from different perspectives.
======================================================================
Graphics Addresses
--------------------------

PMEM		$FF80 0000 + $1000 * Line# 	[Full Turbo]

MultiSync is probably double mapped, starting at $0FF80 0000 .