EQUAL-TEMPERED SCALE
A musical scale where each note is the 12th root of 2 above the note below it.
EXEC
Low-level primitives that support the AmigaDOS operating system.
FAST MEMORY
Memory not accessible by the custom chips. Care must be taken to present only chip
memory address to the custom chips. See Chip Memory.
FONT
A set of letters, numbers, and symbols sharing the same size and design.
FREQUENCY
The number of times per second a waveform repeats.
FREQUENCY MODULATION
A means of changing sound quality by using one audio channel to affect the period of the
waveform produced by another channel. Frequency modulation increases or decreases the
pitch of the sound.
GENLOCK
An optional feature that allows you to bring in a graphics display from an external video
source.
HIGH RESOLUTION
A horizontal display mode in which 640 pixels are displayed across a horizontal line in a
normal-sized display.
HOLD-AND-MODIFY
A display mode that gives you extended color selection up to 4,096 colors on the screen at
one time.
INTERLACED MODE
A vertical display mode where 400 lines are displayed from top to bottom of the video
display in a normal-size display.
JOYSTICK
A controller device that freely rotates and swings from left to right, pivoting from the
bottom of the shaft; used to position something on the screen.
LIGHT PEN
A controller device consisting of a stylus and Tablet used for drawing something on the
screen.
LOW RESOLUTION
A horizontal display mode in which 320 pixels are displayed across a horizontal line in a
normal-sized display.
MANUAL MODE
Non-DMA output. In sprite display, a mode in which each line of a sprite is written in a
separate operation. In audio output, a mode in which audio data words are written one at
a time to the output.
- 368 Glossary -
To Next Page
Loading...
