Format
Spectrum 512 Extended
Summary
- Name
- Spectrum 512 Extended
- Version
- 1
- Identifiers
- PUID: fmt/1577
- Format type
- Image (Raster)
- 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.
- 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
- File extensions
-
spx - Source
- The National Archives and Records Administration / The National Archives and Records Administration
Relationships
- Is previous version of
Internal signatures
Spectrum 512 Extended v1
- Note
- BOF; Offset: 0; Magic Bytes: 'SPX.'
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
53505801- Endianness
- None
Changelog
-
Added in V101
- Release date
- 15 February 2022
Spectrum 512 Extended v1: Signature researched and samples provided by The National Archives and Records Administration.
Spectrum 512 Extended v1: Full entry added. Submitted by The National Archives and Records Administration.