[MAME]

	I-Robot Memory Map

	0000 - 07FF  R/W    RAM
	0800 - 0FFF  R/W    Banked RAM
	1000 - 1000  INRD1  Bit 7 = Right Coin
	                    Bit 6 = Left Coin
	                    Bit 5 = Aux Coin
	                    Bit 4 = Self Test
	                    Bit 3 = ?
	                    Bit 2 = ?
	                    Bit 1 = ?
	                    Bit 0 = ?
	1040 - 1040  INRD2  Bit 7 = Start 1
	                    Bit 6 = Start 2
	                    Bit 5 = ?
	                    Bit 4 = Fire
	                    Bit 3 = ?
	                    Bit 2 = ?
	                    Bit 1 = ?
	                    Bit 0 = ?
	1080 - 1080  STATRD Bit 7 = VBLANK
	                    Bit 6 = Polygon generator done
	                    Bit 5 = Mathbox done
	                    Bit 4 = Unused
	                    Bit 3 = ?
	                    Bit 2 = ?
	                    Bit 1 = ?
	                    Bit 0 = ?
	10C0 - 10C0  INRD3  Dip switch
	1140 - 1140  STATWR Bit 7 = Select Polygon RAM banks
	                    Bit 6 = BFCALL
	                    Bit 5 = Cocktail Flip
	                    Bit 4 = Start Mathbox
	                    Bit 3 = Connect processor bus to mathbox bus
	                    Bit 2 = Start polygon generator
	                    Bit 1 = Select polygon image RAM bank
	                    Bit 0 = Erase polygon image memory
	1180 - 1180  OUT0   Bit 7 = Alpha Map 1
	                    Bit 6,5 = RAM bank select
	                    Bit 4,3 = Mathbox memory select
	                    Bit 2,1 = Mathbox bank select
	11C0 - 11C0  OUT1   Bit 7 = Coin Counter R
	                    Bit 6 = Coin Counter L
	                    Bit 5 = LED2
	                    Bit 4 = LED1
	                    Bit 3,2,1 = ROM bank select
	1200 - 12FF  R/W    NVRAM (bits 0..3 only)
	1300 - 13FF  W      Select analog controller
	1300 - 13FF  R      Read analog controller
	1400 - 143F  R/W    Quad Pokey
	1800 - 18FF         Palette RAM
	1900 - 1900  W      Watchdog reset
	1A00 - 1A00  W      FIREQ Enable
	1B00 - 1BFF  W      Start analog controller ADC
	1C00 - 1FFF  R/W    Character RAM
	2000 - 3FFF  R/W    Mathbox/Vector Gen Shared RAM
	4000 - 5FFF  R      Banked ROM
	6000 - FFFF  R      Fixed ROM

	Notes:
	- There is no flip screen nor cocktail mode in the original game
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