DC2N4-LC native Windows client updated for smooth support of Spectravideo and MSX inverted signals

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.

New sampling options dialog in DC2N4-LC native client

New sampling options dialog in DC2N4-LC native client

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.

Sampling options available for C16/+4

Sampling options available for C16/+4

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:

Spectravideo tape side that requires the opposite edge trigger in DC2N or halfwave dumping enabled

Spectravideo tape side that requires the opposite edge trigger in DC2N or halfwave dumping enabled

The configuration to use is:

Options for inverted signal of Spectravideo and MSX tapes

Options for inverted signal of Spectravideo and MSX tapes

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.

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