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Monthly Archives: November 2020
NIB viewer: circular display
After work today I was putting together the components that I will need to display nibbled data on a circular surface. I have all bits drafted so I thought to just generate a preview image for the NIB file I … Continue reading
Posted in Retrocomputing, Technical
Tagged 1571, Commodore 64, disk protections, IECHost, nibbling, preservation, Vorpal
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NIB viewer: track alignment option
As I prepare to add horizontal scrolling for my NIB viewer tool, I thought it would be useful to have an option to align tracks for visual comparison. At the moment the operation is rather simplistic and doesn’t take into … Continue reading
Posted in Retrocomputing, Technical
Tagged 1571, Commodore 64, disk protections, IECHost, nibbling, preservation, Vorpal
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NIB file viewer in progress
Looking at NIB files for custom formats in a hex editor can be a little bit alienating at times. Therefore I decided to code a viewer that should make it simpler to recognize custom formats. Here’s a screenshot of what … Continue reading
Posted in Retrocomputing, Technical
Tagged 1571, Commodore 64, disk protections, IECHost, nibbling, preservation, Vorpal
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More on Vorpal
I got a few G64 files from SLC today, including the ones for Summer Games II, which uses the same version of Vorpal used in Boulder Dash Construction Kit. There are slight differences in where the drive code is laid … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 64, disk protections, IECHost, nibbling, preservation, Vorpal
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Examining disk protections: Vorpal
Ruben had offered to help with nibbling protected Commodore disks, so today he sent me a NIB file that he saved using my nibbling software for IECHost and his Commodore 1571 disk drive. The protected game he nibbled is “Boulder … Continue reading
Posted in Retrocomputing, Reverse Engineering, Technical
Tagged 1571, Commodore 64, disk protections, IECHost, nibbling, preservation, Vorpal
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IECHost with a 1571: nibbling protected disks
So far I have been testing the new nibbling feature in IECHost with simple DOS disks. However, I am now at a stage where I should be nibbling copy-protected disks. Initially I would like to try and avoid testing with … 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: NIB tools update
I just shared a video update about the nibbling tool for IECHost to use in conjunction with a Commodore 1571 drive. The time to nibble/dump a 35-track disk side during a mass dumping exercise is currently about 10.33 seconds. If … 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 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
Luigi Di Fraia's e-Footsteps 