Copper
CoprocessoI
Cursor keys
Data
fetch
Delay
Depth
Display-synchronized coprocessor
that
resides on one of the
Amiga custom chips and directs the graphics display.
Processor
that
adds its instruction set
to
that
of the main
processor.
Keys for moving something on the screen.
The number of words fetched for each line of the display.
In playfield horizontal scrolling, specifies how many pixels
the picture will shift for each display field. Delay controls
the speed of scrolling.
Number of bit-planes in a display.
Digital-to-analog converter A device
that
converts a binary quantity to an analog level.
Direct memory access
Display
field
Display mode
Display time
Display window
DMA
Dual-playfield mode
Equal-tempered scale
Exec
An arrangement whereby intelligent devices can read or
write memory directly, without having
to
interrupt the
processor.
OJ,le
complete scanning of the video beam from top
to
bot-
tom of the video display screen.
One of the basic types of display; for example, high or
low
resolution, interlaced or non-interlaced, single or dual
playfield.
The amount of time to produce one display field, approxi-
mately 1/60th of a second.
The portion of the bit-map selected for display. Also, the
actual size of the on-screen display.
See direct memory access.
A display mode
that
allows you
to
manage two separate
display memories, giving you two separately controllable
displays
at
the same time.
A musical scale where each note
is
the 12th root of 2 above
the note below it.
Low-level primitives
that
support the AmigaDOS operating
system.
Glossary-3
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