Figure 3-19 Display Window Horizontal Starting Position; Figure 3-20 Display Window Vertical Starting Position - Commodore Amiga Hardware Reference Manual

FULL SCREEN AREA
o
HSTARTof DISPLAY
WINDOW occurs in
this region.
255
361
Figure 3-19: Display Window Horizontal Starting Position
The eight bits allocated to VSTART are assigned to the first 256 positions counting
down from the top of the display.
FULL SCREEN AREA
VST ART
of
DISPLAY WINOJw
occurs in this region.
o
---'----,1--
255
(NTSC) - - - - t - - 262
Figure 3-20: Display Window Vertical Starting Position
Recall that you select the values for the starting position as if the display were in low-
resolution, non-interlaced mode. Keep in mind, though, that for interlaced mode the
display window should be an even number of lines in height to allow for equal-sized odd
and even fields.
70 Playfield Hardware