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Therefore, CGA scrolling is done in software, by redrawing the entire screen for every frame, which such systems lack the performance to do for full-screen animation. Adaptive tile refresh minimizes the computing power required for sidescrolling games, to be within the reach of contemporary hardware.
The 8568 was essentially an updated version of the 8563, combining its functionality with glue logic that had previously been implemented using discrete components located near the 8563. Unlike the 8563, the 8568 included an unused (in the C-128) active low interrupt request line ( /INTR ), which was asserted when the "ready" bit in the 8568's ...
Motorola 6845 CRT controller. The Motorola 6845, or MC6845, is a display controller that was widely used in 8-bit computers during the 1980s. [1] [2] Originally intended for designs based on the Motorola 6800 CPU and given a related part number, it was more widely used alongside various other processors, and was most commonly found in machines based on the Zilog Z80 and MOS 6502.
The jump from single-screen or flip-screen graphics to scrolling graphics during the golden age of arcade games was a pivotal leap in game design, comparable to the move to 3D graphics during the fifth generation. [1] Hardware support of smooth scrolling backgrounds is built into many arcade video games, some game
The technique of shaping the end of a moulding or frame component to neatly fit the contours of an abutting member. scroll saw A motorized fretsaw. seasoning The process of reducing the moisture content of wood before working to prevent cracking, splitting, and other damage often caused by drying. shake 1.
The engine they had developed for the side-scrolling racing game Excitebike (1984) was later employed for the scrolling platformer Super Mario Bros. (1985). This had the effect of allowing Mario to smoothly accelerate from a walk to a run, rather than move at a constant speed like in earlier platformers. [7]
μPD7220A On NEC PC-9801F. The High-Performance Graphics Display Controller 7220 (commonly μPD7220 or NEC 7220) is a video display controller and a Graphics processing unit, capable of drawing lines, circles, arcs, and character graphics to a bit-mapped display.
Frame time is related to frame rate, but it measures the time between frames. A game could maintain an average of 60 frames per second but appear choppy because of a poor frame time. Game reviews sometimes average the worst 1% of frame rates, reported as the 99th percentile, to measure how choppy the game appears.