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Tag Archives: IECHost
IECHost track nibbling with a 1571 drive: NIB tools
In this video I am benchmarking the nibbling capabilities available in firmware version 3.x.y of IECHost, using a 1571 drive. As the stopwatch suggests, it takes roughly 14 seconds to nibble a 35-track disk side to NIB file. If the … Continue reading
Posted in Retrocomputing, Technical
Tagged 1571, Commodore 128, disks, dumping, IECHost, nibbling, preservation, retrocomputing
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IECHost track nibbling with a 1571 drive: NIB file support
As I thought when I created a non-standard G64 file (track data length = 8192 bytes), a NIB file holds pretty much the same information I was trying to hold in my custom G64 file. I could not find information … Continue reading
Posted in Retrocomputing, Technical
Tagged 1571, Commodore 128, disks, dumping, IECHost, nibbling, preservation, retrocomputing
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IECHost GUI client version 3.8.7 released
Version 3.8.7 of the IECHost GUI client is now available within my Software page. This is a minor release that adds a few new features. Details of the changes are available through the issue tracker.
Posted in Retrocomputing, Technical
Tagged Commodore 64, disks, dumping, IECHost, preservation, software
1 Comment
IECHost track nibbling with a 1571 drive: troubleshooting successful
Long story short, the G64 I created earlier today doesn’t work in VICE 3.2 or 3.4 because it does not comply with the G64 format specs 🙂 I took a copy of Markus Brenner’s g2d tool that’s part of mnib … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, disks, dumping, IECHost, nibbling, preservation, retrocomputing
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IECHost track nibbling with a 1571 drive: full disk nibbled
This afternoon I decided to put together the scenario to dump a whole disk with IECHost and my Commodore 1571 drive. I collected track data in a mixed-content log (commands + data) and parsed it to build a G64 disk … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, disks, dumping, IECHost, nibbling, preservation, retrocomputing
2 Comments
IECHost track nibbling with a 1571 drive: decoding data
A few days back I completed my first track nibbling test, so today I tried to decode the GCR data that I captured during the test. Below there’s the output of my decoding routine, showing Header blocks in GCR format … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, disks, dumping, IECHost, nibbling, preservation, retrocomputing
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IECHost: testing whole track dumping
While working at disk nibbling, I also creates a branch in the IECHost firmware and software repos in order to implement one long standing feature: whole track dumping. A whole track can now be dumped very quickly instead of being … Continue reading
Posted in Retrocomputing, Technical
Tagged Commodore 64, Disk drives, dumping, IEC, IECHost, preservation
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IECHost track nibbling with a 1571 drive: first test done!
Today I implemented the protocol to transfer a whole track with IECHost using the SRQ line of a 1571 disk drive. Compared to the test pattern and drive code echo transfers, the transfer of track data is quite time-critical so … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, Disk drives, dumping, IEC, IECHost, nibbling, preservation
1 Comment
IECHost: killer track generation code completed
As I plan to generate killer tracks for testing purposes in future, I added a command to IECHost to create killer tracks on demand 🙂The drive code side of such command is as per below: So I can now create … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, Disk drives, dumping, IEC, IECHost, nibbling, preservation
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IECHost disk nibbling with a 1571 drive: killer track detection
As I am exploring the 1571 drive code from Nibtools, I am implementing various commands within the IECHost firmware. The ones with a comment next to them are those I tested and played around with so far: Today I decided … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 128, Disk drives, dumping, IEC, IECHost, nibbling, preservation
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Luigi Di Fraia's e-Footsteps 