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Properties

Summary
Name	Spectrum 512 Extended
Version	1
Other names
Identifiers	PUID: fmt/1577
Family
Classification	Image (Raster)
Disclosure
Description	Spectrum 512 was a computer paint program by Boris Tsikanovsky that enabled the creation of images with more than 16 simultaneous colors. It uses the Atari ST's rapid palette switching ability to expand the maximum number of colors to be displayed on-screen at once to 512 (up to 46 in each scan line). Spectrum 512 is a predecessor of Unispec. Spectrum 512 Extended (spx) files are extended Spectrum files with more than 200 lines in the picture, designed by Gizmo of Electronic Images. With a SPX creator like SPXCRT14.PRG multiple spectrum pictures can be attached to become one big .SPX file. There are two known versions of the format. This record details Version 1, both versions support larger pictures in Spectrum 512.
Orientation
Byte order
Related file formats	Is previous version of Spectrum 512 Extended (2)
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	The National Archives and Records Administration / The National Archives and Records Administration
Source date	04 Jan 2022
Source description
Last updated	04 Jan 2022
Note	https://doudoroff.com/atari/spectrum.html https://temlib.org/AtariForumWiki/index.php/Spectrum_512_Extended_file_format https://en.wikipedia.org/wiki/Atari_ST http://www.atarimania.com/utility-atari-st-spectrum-512_22312.html http://fileformats.archiveteam.org/wiki/Spectrum_512_formats