Description: Mode 13h VGA is a graphics mode that allows the representation of images at a resolution of 320×200 pixels, using a palette of 256 colors. This mode is part of the VGA (Video Graphics Array) specification, which was introduced by IBM in 1987. Mode 13h is notable for its simplicity and efficiency, as it allows programmers to directly access video memory, facilitating quick manipulation of graphics. In this mode, each pixel on the screen is represented by a byte that acts as an index in a color table, meaning that up to 256 different colors can be displayed simultaneously, selected from a palette of 256 possible colors. This color and resolution capability made it a popular choice for the development of video games and graphic applications in the 1990s, as it offered a balance between visual quality and performance. Additionally, Mode 13h is widely used in low-level programming environments, such as assembly language, where developers can leverage its direct memory access to create high-speed graphics and visual effects. Its legacy endures in retro programming culture and nostalgia for the video games of that era.
History: Mode 13h was introduced by IBM with the VGA specification in 1987, as part of an effort to improve the graphical quality of personal computers. As video games and graphic applications began to gain popularity, Mode 13h became a standard due to its ability to handle 256-color graphics at a relatively low resolution, which was sufficient for most games of the time. Over time, this mode became iconic in the developer community, especially in the realm of video game programming, where it was used in classic titles from the 16-bit era.
Uses: Mode 13h is primarily used in the development of video games and graphic applications that require fast access to video memory. Its simplicity makes it ideal for programmers working in low-level languages, such as assembly, where direct pixel manipulation is crucial. Additionally, it has been used in demos and digital art projects that seek to emulate the aesthetics of retro graphics.
Examples: Examples of Mode 13h usage include classic games like ‘Doom’ and ‘Wolfenstein 3D’, which leveraged its ability to display graphics in 256 colors. It has also been used in demo applications and digital art projects that aim to recreate the visual style of 1990s video games.
