I ran hex diffs on the pairs you list, and it's clear that yours are a version of the the cbm6400 ones. None of them are exactly the same, though, so yours are either for a different Tec printer, or a different version/build of the cbm6400 firmware. Too bad they don't seem to contain any string data. /Hans On 2021-04-20 08:26, ruud_at_Baltissen.org wrote: > Hallo Hans, > > > The ZIP contains the four BINs. > > Having a quick look it seems: > > 601140-28 = 02605 > 601140-29 = 02705 > > cbm6400_rom0 = 02603 > > 02703 is different from rom1. Not much, but different. > > > -- > > Kind regards / Met vriendelijke groet, Ruud Baltissen > www.Baltissen.org > > > > > > > > The following section of this message contains a file attachment > prepared for transmission using the Internet MIME message format. > If you are using Pegasus Mail, or any other MIME-compliant system, > you should be able to save it or view it from within your mailer. > If you cannot, please ask your system administrator for assistance. > > ---- File information ----------- > File: ZPFAK.zip > Date: 20 Apr 2021, 8:21 > Size: 11649 bytes. > Type: ZIP-archiveReceived on 2021-04-20 10:00:02
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