1Disk: TRS-80 2============ 3 4The TRS-80 models I, III and IV (but not the II, 100, 2000, Colour Computer 5or Pocket Computer) was a popular line of Z80-based home computers made by 6Tandy Corporation and sold by Radio Shack. There were some of the first 7generation of domestic micromputers, with the Model I released in 1978. 8 9There were a myriad of different floppy disk interfaces, some produced by 10Tandy and some by third parties, using all the various combinations of 40- 11and 80-track, FM, MFM, etc. 12 13Luckily the encoding scheme was mostly compatible with the IBM scheme, with a 14few minor variations: when using FM encoding, the TRS-80 wrote the sectors on 15track 17 (where the directory was) with a non-standard DAM byte. 16 17FluxEngine's IBM reader can handle TRS-80 disks natively. 18 19Reading discs 20------------- 21 22Just do: 23 24``` 25fluxengine read ibm 26``` 27 28You should end up with an `ibm.img` of the appropriate size. It's a simple 29array of sectors in JV1 format. 30 31If you've got a 40-track disk, use `-s :t=0-79x2`. 32 33If you've got a single density disk, use `--read-fm=true`. (Double density is 34the default.) 35 36 37Useful references 38----------------- 39 40 - [The JV3 file format](https://www.tim-mann.org/trs80/dskspec.html): 41 documents the most popular emulator disk image. 42 43