write 53276 $D01CVDELAYVertical Delay for PMboth

Vertical Delay register. When using double line resolution for players and missiles you can normally only use every second line. Setting bit in this register moves the object down one scan line on the screen.

7Player 3
6Player 2
5Player 1
4Player 0
3Missile 3
2Missile 2
1Missile 1
0Missile 0

For switching between single and double line resolution see Bit 5 of SDMCTL

see also: Player Missile Topics, SDMCTL

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next: GRACTL