SCROLLING
Moving a playfield smoothly in a vertical or horizontal direction.
SERIAL PORT
A connector on the back of the Amiga used to attach modems and other serial add-ons.
SET
Giving a bit the value of 1.
SHARED MEMORY
The RAM used in the Amiga for both display memory and executing programs.
SPRITE
Easily movable graphics object that is produced by one of the eight sprite DMA channels
and is independent of the playfield display.
STROBE ADDRESS
An address you put out to the bus in order to cause some other action to take place; the
actual data written or read is ignored.
TASK
Operating system module or application program. Each task appears to have full control
over its own virtual 68000 machine.
TIMBRE
Tone quality of a sound.
TRACKBALL
A controller device that you spin with your hand to move something on the screen; may
have buttons for other forms of input.
TRANSPARENT
A special color register definition that allows a background color to show through. Used in
dual-playfield mode.
UART
The circuit that controls the serial link to peripheral devices, short for Universal
Asynchronous Receiver/Transmitter.
VIDEO PRIORITY
Defines which objects (playfields and sprites) are shown in the foreground and which
objects are shown in the background. Higher-priority objects appear in front of lower-
priority objects.
VIDEO DISPLAY
Everything that appears on the screen of a video monitor or television.
WRITE-ONLY
Describes a register that can be written to but cannot be read.
- Glossary 371 -
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