.GLOBAL	OFREE,OBJLST,BAKLST,BAK2LST,DISPLAYON,SCRNRELV
	.GLOBAL	OINIT,GETOBJ,INSOBJ,DELOBJ,DISPLAY,ADDOBJ,KILOBJ,OBJSTR,DISPH
	.GLOBAL	ANI,STFOBJ,MAKOBJ,SCRTST,SCRTSTG,GSAGOF,GANIOF
	.GLOBAL	YZSORT,INSB2OBJ,INSBOBJ,DELB2OBJ,DELBOBJ,KILB2OBJ,KILBOBJ
	.GLOBAL	PULLB2OBJ,PULLBOBJ,PULLOBJ,GANISAG,ADJSTWTL,CLIPOBJ
	.GLOBAL	QDMA,QDMAN,SHADJUMP,GETANIXY,ANI2,SHADST2,SHADCPY,SHADCPY2
	.GLOBAL	SCROLLX,SCROLLY,WORLDTLX,WORLDTLY,WORLDTL,BAK2TLX,BAK2TLY
	.GLOBAL	SCRNTL,SCRNLR,GSCRNREL,ADJNEWTL,DELSOBJ,DELSHAD,SHADST
	.GLOBAL OBJSTR,SCREENTL,SCREENLR,QSYNC,DMAQCUR,DMAQCNT
	.GLOBAL BOTQ0CNT,BOTQ1CNT,TOPQ0CNT,TOPQ1CNT,BOTQ0FLG,BOTQ1FLG
	.GLOBAL TOPQ0FLG,TOPQ1FLG,BOTQ0,BOTQ1,TOPQ0,TOPQ1,STOPOBJS
	.GLOBAL	FREEOBJ,FREESOBJ,FREEOBJE,PULLSOBJ,INSSOBJ
	.GLOBAL	SHADUPD,SHADUPD2,EXISTOBJ,DMAINT
	.GLOBAL	DISPQT,ENDOFREE,ISOBJ
*
*GLOBALS CONNECTED TO NARC
	.GLOBAL	DFRMGRND,CURPAL,DUMCOLL
*
*CONSTANTS
*
;
SCRNST	.EQU	[1,5]	  	;TOP LEFT OF SCREEN
SCRNEND .EQU	[252,395]	;BOTTOM RIGHT OF SCREEN
SCRNMID	.EQU	[128,200]	;MIDPOINT OF SCREEN


SHADID	.EQU	>0FFF		;SHADOWS ARE HIGH PRI
*
*OBJECT INITIALIZATION TABLE
INITXVAL	.EQU	0
INITYVAL	.EQU	20H
INITIMG		.EQU	40H
INITZPOS	.EQU	60H
INITFLAGS	.EQU	70H
INITID		.EQU	80H
INITXVEL	.EQU	90H
INITYVEL	.EQU	0B0H
INITCVECT	.EQU	0D0H

*
*	OBJECT BLOCK LAYOUT
*
*STRUCT OBJ
OLINK	.EQU   	0   	;UHL 32 BIT LINK TO NEXT OBJECT BLOCK
OXVEL	.EQU   	20H    	;UHL 32 BIT X VELOCITY 16.16		 
OYVEL	.EQU   	40H   	;UHL 32 BIT Y VELOCITY 16.16		 
OXVAL	.EQU   	60H	;UHL 32 BIT X POSITION
OXFRAC	.EQU   	60H	; FRACTIONAL PORTION OF X POSITION	 
OXPOS	.EQU   	70H	; INTEGER PORTION OF X POSITION
OYVAL	.EQU   	080H   	;UHL 32 BIT Y POSITION			 
OYFRAC	.EQU   	080H   	; FRACTIONAL PORTION OF Y POSITION
OYPOS	.EQU   	090H   	; INTEGER PORTION OF Y POSITION
;OZVAL	.EQU	0A0H	; 32 BIT Z POSITION
OZPOS	.EQU   	0A0H   	;UHW INTEGER Z POSITION OF OBJECT	   	
;OZVEL	.EQU   	0C0H   	; 32 BIT Z VELOCITY 
OFLAGS	.EQU   	0B0H   	;UHW 32 BIT BITS 0 - 5 DMA CONTROL; B16-31= OFFSET PRECOMPUTED
OFSET	.EQU	0C0H	;UHW   PRECOMPUTED OFFSET
OSAG	.EQU   	0D0H   	;UHL 32 BIT SOURCE ADDRESS (UNCLIPPED, ADJUSTED FOR FLIPS)
OSIZE	.EQU   	0F0H	; 32 BIT H,W OF OBJECT (16,16)	W=ADJUSTED FOR MORSEL
OSIZEX	.EQU	0F0H	;UHW X SIZE
OSIZEY	.EQU	100H	;UHW Y SIZE
OPAL	.EQU   	110H   	;UHW PALLETTE
OCONST	.EQU	120H	;CONSTANT COLOR
OIMG	.EQU   	130H   	;UHL 32 BIT POINTER TO IMAGE DATA TABLE	
OID	.EQU   	150H   	;UHW 16 BIT OBJECT ID			
;OZSIZ	.EQU   	190H 	; 32 BIT Z THICKNESS   
;OZMINUS	.EQU   	1B0H 	;   THICKNESS ALONG MINUS Z
;OZPLUS	.EQU   	1C0H 	;   THICKNESS ALONG PLUS  Z
;OCVECT	.EQU   	180H   	; 32 BIT LINK TO COLLISION HANDLER     
OPLINK	.EQU   	160H   	;UHL 32 BIT LINK TO CONTROLLING PROCESS   
ODMAXY	.EQU	180H	; 32 BIT SCREEN COORD OF OBJECT
ODMAX	.EQU	180H	;X COORDINATE
ODMAY	.EQU	190H	;Y COORDINATE
OXCLIP	.EQU	1A0H	;UHW 16 BIT TOTAL X PRECLIP
OSHAD	.EQU	1C0H	;32 BIT SHADOW LINK
OCOLLIDE	.EQU	1E0H
OBSIZ	.EQU	1F0H
*ENDSTRUCT
NOBJ	.EQU   	400   	; OBJECTS TO DISPLAY
*
BQCELL	.EQU	>A0 	;SIZE OF DMA QUEUE ELEMENT
***********************
*  VALUES FOR OFLAGS  *
***********************
M_WRZERO 	.EQU      1	;WRITE ZERO DATA
M_WRNONZ 	.EQU  	  2    	;WRITE NON-ZERO DATA
M_CONZER 	.EQU  	  4    	;REPLACE ZERO DATA WITH CONSTANT
M_CONNON 	.EQU  	  8    	;REPLACE NON-ZERO DATA WITH CONSTANT
M_CONST		.EQU   	 >C    	;ANY CONSTANT DATA REPLACEMENT
M_FLIPH		.EQU   	>10   	;FLIP HORIZONTALLY 
M_FLIPV		.EQU   	>20   	;FLIP VERTICALLY 
M_NODIS		.EQU   >100   	;IGNORE THIS ENTRY
M_PZPLUS	.EQU   >200	;TAKE Z VALUE FROM RAM LOC. PREVZ AND ADD 1		
M_PIXSCAN 	.EQU   >400	;IF=1 O.K. TO PIXEL SCAN WITH THIS OBJECT
M_NOCOLL 	.EQU   >800	;IF=1 OBJECT NOT COLLIDABLE
M_PREVZ		.EQU  >1000	;TAKE Z VALUE FROM RAM LOC. PREVZ
M_NOMOV		.EQU  >2000  	;DO NOT ADD VELOCITIES
M_INUSE		.set  >8000	;obj in use by display system
*
*BIT POSITIONS FOR OFLAGS
B_WRZERO	.EQU   	0
B_WRNONZ	.EQU   	1
B_CONZER	.EQU   	2
B_CONNON	.EQU   	3
B_FLIPH		.EQU  	4
B_FLIPV		.EQU  	5
B_NODIS		.EQU  	8
B_PZPLUS	.EQU	9
B_PIXSCAN	.EQU	10	
B_NOCOLL	.EQU	11
B_PREVZ		.EQU	12
B_NOMOV		.EQU  	13
B_INUSE		.set	15