The graphics systemįeatured color RGB graphics and multicolor hardware sprites overlapping a tiled background. The Galaxian hardware pushed the limit of video game designs in 1979.Īt its core is a Z80 CPU at 3.072 MHz. There are 32 bytes per scanline, thus 32 * 8 = 256 pixels across (or upwards if the screen is rotated.) Galaxian/Scramble # Lifespan The video frame has 256 horizontal by 224 vertical pixels, and also can be rotated 90 degrees, as it is in Space Invaders.Įach byte corresponds to eight pixels – for each bit, 1 means a lit pixel, 0 means dark. The Midway 8080 architecture generates video from a black-and-white frame buffer, using a whopping 7KB of RAM. Generator which of the 256 characters to use. The layout of the cell grid is simple - rows and columns of bytes, each byte telling the video The video generator can display a 32x28 grid of cells - or 28x32, if the monitor was rotated 90 degrees.Įach cell is cell taken from one of 256 8x8 pixel bitmaps, also defined in RAM.Įarly boards only supported monochrome graphics, but later boards could output 8 different colors. The VIC Dual’s video generator has more in common with the dumb terminals of the day than later video games.
8bitworkshop supports programming classic arcade game hardware platforms.
