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43 lines
1.4 KiB
Markdown
43 lines
1.4 KiB
Markdown
eco1
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====
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## CP/M; 1210kB 77-track mixed format DSHD
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<!-- This file is automatically generated. Do not edit. -->
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The Eco1 is a Italian CP/M machine produced in 1982. It had 64kB of RAM, in
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later models expandable up to 384kB, and _two_ Z80 processors. One of these was
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used solely for managing the twin 8" drives, each storing 1.2MB, which was
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quite impressive for a CP/M machine in those days. Visually it is best
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described as 'very brown'.
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<div style="text-align: center">
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<a href="vds-eco1.jpg"> <img src="vds-eco1.jpg" style="width:80%" alt="A contemporary advert for the Eco1"/></a>
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</div>
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Its format is standard IBM scheme, but with an interesting wrinkle: there are
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_three_ different formatting zones on the disk:
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- Track 0 side 0: 26 sectors, 128 bytes per sector (3296 bytes)
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- Track 0 side 1: 26 sectors, 256 bytes per sector (6656 bytes)
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- All others: 16 sectors, 512 bytes per sector (8192 bytes)
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The standard `read ibm` command will autodetect and read these disks, but due
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to the format confusing the size autodetection the images need postprocessing
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to be useful, so there's a custom profile for the Eco1 which produces sensible
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images.
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## Options
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(no options)
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## Examples
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To read:
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- `fluxengine read -c eco1 -s drive:0 -o eco1.img`
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## References
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- [Apulio Retrocomputing's page on the
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Eco1](https://www.apuliaretrocomputing.it/wordpress/?p=8976)
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