;-------------------------------------------------------------------------
; ANTIC Address Equates
;-------------------------------------------------------------------------
; Read Addresses
VCOUNT = ANTIC + $0B ;vertical line counter
PENH = ANTIC + $0C ;light pen horizontal position
PENV = ANTIC + $0D ;light pen vertical position
NMIST = ANTIC + $0F ;NMI interrupt status
; Write Addresses
DMACTL = ANTIC + $00 ;DMA control
CHACTL = ANTIC + $01 ;character control
DLISTL = ANTIC + $02 ;low display list address
DLISTH = ANTIC + $03 ;high display list address
HSCROL = ANTIC + $04 ;horizontal scroll
VSCROL = ANTIC + $05 ;vertical scroll
PMBASE = ANTIC + $07 ;player-missile base address
CHBASE = ANTIC + $09 ;character base address
WSYNC = ANTIC + $0A ;wait for HBLANK synchronization
NMIEN = ANTIC + $0E ;NMI enable
NMIRES = ANTIC + $0F ;NMI interrupt reset
;-------------------------------------------------------------------------
; Antic opcodes
;-------------------------------------------------------------------------
; usage example:
;
; ScreenDL:
; .byte DL_BLK8
; .byte DL_BLK8
; .byte DL_CHR40x8x1 | DL_LMS | DL_DLI
; .word ScreenAlignment
; .byte DL_BLK1 | DL_DLI
; .byte DL_MAP320x1x1 | DL_LMS
; .word Screen
;
; .repeat 99
; .byte DL_MAP320x1x1
; .endrepeat
; .byte DL_MAP320x1x1 | DL_LMS
; .word Screen + 40 * 100 ; 100 lines a 40 byte, 'Screen' has to be aligned correctly!
; .repeat 92
; .byte DL_MAP320x1x1
; .endrepeat
;
; .byte DL_JVB
; absolute instructions (non mode lines)
DL_JMP = 1
DL_JVB = 65
; DL_BLKn display n empty lines (just background)
DL_BLK1 = 0
DL_BLK2 = 16
DL_BLK3 = 32
DL_BLK4 = 48
DL_BLK5 = 64
DL_BLK6 = 80
DL_BLK7 = 96
DL_BLK8 = 112
; absolute instructions (mode lines)
DL_CHR40x8x1 = 2 ; monochrome, 40 character & 8 scanlines per mode line (GR. 0)
DL_CHR40x10x1 = 3 ; monochrome, 40 character & 10 scanlines per mode line
DL_CHR40x8x4 = 4 ; colour, 40 character & 8 scanlines per mode line (GR. 12)
DL_CHR40x16x4 = 5 ; colour, 40 character & 16 scanlines per mode line (GR. 13)
DL_CHR20x8x2 = 6 ; colour (duochrome per character), 20 character & 8 scanlines per mode line (GR. 1)
DL_CHR20x16x2 = 7 ; colour (duochrome per character), 20 character & 16 scanlines per mode line (GR. 2)
DL_MAP40x8x4 = 8 ; colour, 40 pixel & 8 scanlines per mode line (GR. 3)
DL_MAP80x4x2 = 9 ; 'duochrome', 80 pixel & 4 scanlines per mode line (GR.4)
DL_MAP80x4x4 = 10 ; colour, 80 pixel & 4 scanlines per mode line (GR.5)
DL_MAP160x2x2 = 11 ; 'duochrome', 160 pixel & 2 scanlines per mode line (GR.6)
DL_MAP160x1x2 = 12 ; 'duochrome', 160 pixel & 1 scanline per mode line (GR.14)
DL_MAP160x2x4 = 13 ; 4 colours, 160 pixel & 2 scanlines per mode line (GR.7)
DL_MAP160x1x4 = 14 ; 4 colours, 160 pixel & 1 scanline per mode line (GR.15)
DL_MAP320x1x1 = 15 ; monochrome, 320 pixel & 1 scanline per mode line (GR.8)
; modifiers on mode lines...
DL_HSCROL = 16
DL_VSCROL = 32
DL_LMS = 64
; general modifier...
DL_DLI = 128