Hardware Register Lists; Address Order - Atari 400 Technical Reference Manual

~. HARDWARE REGISTER LISTS
A. ADDRESS ORDER
CTIA ADDRESSES
WRITE READ
Address Name DescriDtion Name DescriDtion
DOFF
}
!
REPEAT AS BELOW
7 MORE TIMES
D020
DOIF CON SOL Write Consol SW.Port CON SOL Read Consol SW. Port
DOlE HITCLR Collision Clear
DOID GRACTL Graj)hic Control
DOIC VDELAY Vert. Delay
D9lB PRIOR Priority Select
DOlA
COLBK Col-Ium Bkgnd
D019 COLPF3 Color-Ium of 3
D018 COLPF2 Playfield 2
D017 COLPFI Playfield 1
D016 COLPFO Playfield 0
DOIS
COLPM3 Color-Ium of 3
D014 COLPM2 Pla3er-Missile 2
PAL READ PAL/NTSC bits
D013 COLPMl Player-Missile 1
TRIG3 Read Joystick
D012
COLPMO Player-Missile 0 TRIG2 Trigger
DOll GRAFM GraDhics All Missiles TRIGI
Buttons
DOlO GRAFP3 Graphics Player 3 TRIGO
DOOF GRAFP2
Graphics Player 2
P3PL
Read Player
DOOE GRAFPl
GraDhics Player 1
P2PL
to Player
DOOD GRAFPO Graphics Player 0 PlPL
Collisions
DOOC SIZEM Size All Missiles POPL
DOOB SIZEP3 Size Player 3 M3PL
Read Missile
DOOA SIZEP2 Size Player 2 M2PL To Player
DOO9 SIZEPI Size Player 1 MlPL
Collisions
DOO8 SIZEPO Size Player 0 MOPL
DOO7 HPOSM3 Horz. Posit. Missile 3 P3PF Read Player
DOO6
HPOSM2 Horz. Posit. Missile 2 P2PF
To Playfield
DOOS
HPOSMI Horz. Posit. Missile
1
PlPF
Collisions
DOO4 HPOSMO Horz. Posit. Missile 0 POPF
DOO3
HPOSP3
Horz. Posit. Player 3 M3PF Read Missile
DOO2
HPOSP2
Horz. Posit. Player 2
M2PF
To Playfield
DOOI HPOSPI Horz. Posit. Player 1 MlPF
Collisions
DOOO HPOSPO Horz. Posit. Player 0 MOPF
V.l