I had some time to expose all DC2N4-LC dumping modes in the native Windows client and I decided to do so in a similar way as I do in the commandline client.
For C64 and VIC 20, it all stays pretty much the same: no extra options are provided.
For C16, the additional “Trigger on both edges” option is available, which has historically been referred to as using “halfwaves”: this is only necessary with certain turbo loaders that require being stored in a TAP format version 2 as per Markus Brenner’s proposal. If you don’t know whether or not you need to enable this option, then just don’t enable it, make a dump of the tape and feel free to get in touch on whether you need to re-dump it with this option enabled.
For any other platform, full flexibility can be achieved by using the new option “Start on a rising edge”. As example, for MSX and Spectravideo tapes that show an inverted signal as in the image below:
The configuration to use is:
The latter configuration produces DMP version 0 files that can be converted to TAP in TAPClean directly without the aid of the dc2n3-conv tool.
I’ll be testing the new version and update the GTK+ GUI client in a similar way in the next couple of days, before making them available to DC2N4-LC users.