Commodore Amiga - Page 32

Register Color
COLOROO
black
COLOROI
yellow
COLOR02
cyan
COLOR03
magenta
The complete Copper list follows.
COPPERLIST:
DC.W$00EO,$0002
DC.W $00E2,$1000
DC.W $00E4,$0002
DC.W $00E6,$5000
,
j Load color registers
,
DC.W
DC.W
DC.W
DC.W
$0180,$OFFF
$0182,$OFOO
$0184,$00FO
$0186,$000F
j Wait for line 150
DC.W $g601,$FFOO
j Reload color registers
,
DC.W
DC.W
DC.W
DC.W
$0180,$0000
$0182,$OFFO
$0184,$00FF
$0186,$OFOF
;Move $0002 into address $OEO (BPL1PTH)
jMove $1000 into address
$OE2 (BPL1PTL)
;Move $0002 into address $OE4 (BPL2PTH)
jMove $5000 into address
$OE6 (BPL2PTL)
jMove white into address $180 (COLOROO)
jMove red into address
$182 (COLOR01)
jMove green into address
$184 (COLOR02)
jMove blue into address
$186 (COLOR03)
j Wait for line 150, ignore horiz. position
jMove black into address $0180 (COLOROO)
;Move yellow into address $0182 (COLOR01)
jMove cyan into address $0184 (COLOR02)
;Move magenta into address $0186 (COLOR03)
j End Copper list by waiting for the impossible
DC.W $FFFF,$FFFE ;
Wait for line 255, H = 254 (never happens)
For more information about color registers, see chapter 3, "Playfield Hardware."
18 Coprocessor Hardware