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49 lines
1.6 KiB
Markdown
49 lines
1.6 KiB
Markdown
tartu
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====
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## The Palivere and variations
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<!-- This file is automatically generated. Do not edit. -->
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The Tartu Palivere is a 1988 Z80-based computer from Estonia. It is a CP/M
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machine with 64kB of RAM, running off a 2MHz ꃣ0e30
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clone; it operated off punched tape, cassette, external hard drive or floppy, and was notable as being the first ever computer with an Estonian keyboard.
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<div style="text-align: center">
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<img src="tartu.jpg" alt="The Tartu computer's developer Leo Humal working with one."/>
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</div>
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From a floppy disk perspective, it is interesting because the floppy drive
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interface is almost entirely handled in software --- necessary at the time as
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the usual floppy disk interface chip at the time, the ⎲fba5
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of the WD1793), was hard to find. Instead, the floppy controller board was
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implemented entirely using TTL logic. Despite this, the encoding is fairly high
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density, using MFM and with up to 780kB on a double-sided 80 track disk.
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<div style="text-align: center">
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<img src="tartu-fdc.jpg" alt="The Tartu FDC with Soviet TTL logic chips."/>
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</div>
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FluxEngine supports reading and writing Tartu disks with CP/M filesystem access.
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## Options
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- Format variants:
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- `390`: 390kB 5.25" 40-track DSDD
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- `780`: 780kB 5.25" 80-track DSDD
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## Examples
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To read:
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- `fluxengine read tartu --390 -s drive:0 -o tartu.img`
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- `fluxengine read tartu --780 -s drive:0 -o tartu.img`
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To write:
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- `fluxengine write tartu --390 -d drive:0 -i tartu.img`
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- `fluxengine write tartu --780 -d drive:0 -i tartu.img`
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## References
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- [The Estonia Museum of Electronics](https://www.elektroonikamuuseum.ee/tartu_arvuti_lugu.html)
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