Sigrok MFM decoder

Original project: https://www.sardis-technologies.com/ufdr/pulseview.htm

• Fixed for modern PulseView
• Ported to support DSView
• Added support for hard drives

Thanks to rasz_pl for the bulk of the work, and the rest of the Twitch chat for helping crack the troublesome CRC32 problems.

Usage

Copy the mfm folder into your libsigrokdecocde/decoders or libsigrokdecode4DSL/decoders folder. You should then find the decoder in your normal decoders list.

It requires three channels:

• Read data - the actual data being read from the drive
• Extra pulses - a channel of extra pulses to include in the data
• Suppression - a channel that suppresses (gates) processing of the information.