TR-DOS filesystem - Revision history

Dan Tobias at 02:17, 13 September 2019

2019-09-13T02:17:01Z

Dan Tobias at 02:16, 13 September 2019

2019-09-13T02:16:49Z

Dan Tobias: TRD moved to separate page

2019-09-13T02:14:48Z

TRD moved to separate page

Dan Tobias: /* Links */

2019-09-11T01:35:54Z

‎Links

Jsummers at 17:40, 17 November 2018

2018-11-17T17:40:27Z

Dan Tobias at 01:47, 17 November 2018

2018-11-17T01:47:18Z

Kolen: Created page with "{{FormatInfo | name = TR-DOS file system | formattype = electronic | subcat = Filesystem | subcat2 = | subcat3 = | subcat4 = | su..."

2018-11-16T12:51:11Z

Created page with "{{FormatInfo | name = TR-DOS file system | formattype = electronic | subcat = Filesystem | subcat2 = | subcat3 = | subcat4 = | su..."

New page

{{FormatInfo
| name = TR-DOS file system
| formattype = electronic
| subcat = Filesystem
| subcat2 =
| subcat3 =
| subcat4 =
| subcat5 =
| thiscat =
| extensions =
| mimetypes =
| locfdd =
| fourccs =
| pronom =
| type code =
| uniform type =
| kaitai struct = tr_dos_image
| conforms to =
| released =
| image =
| caption =
}}

[[wikipedia:TR-DOS|TR-DOS]] is an operating system for ZX Spectrum personal computer with Beta Disc floppy drive interface. Despite being developed by British company Technology Research Ltd, it was not especially popular in the West, but was more popular in USSR and post-USSR in 80-90s.

5¼" and 3½" floppies are used with the following formats:

{| class="wikitable"
!Number of tracks per side
!Number of sides
!Number of tracks (total)
!Number of sectors
!Number of bytes
|-
|80
|2
|160
|2560
|655360
|-
|40
|2
|80
|1280
|327680
|-
|80
|1
|80
|1280
|327680
|-
|40
|1
|40
|640
|163840
|}

== {{ext|trd}} files: TR-DOS disk images ==

Diskettes can be dumped to {{ext|trd}} files, which are plain sector-by-sector headerless dumps (the same idea as <code>/dev/fd0</code>). Each sector is 256 bytes, each track contains 16 sectors. Tracks are arranged in the same order as "logical tracks" in TR-DOS: 0th track on 0th side, 0th track on 1st side, 1st track on 0th side, 1st track on 1st side, …. If remaining sectors at the end of floppy are unused, {{ext|trd}} file can be less than actual floppy size. These files are supported by most ZX Spectrum emulators.

== Links ==

* [http://www.zx-modules.de/fileformats/trdformat.html TRD disk image format - ZX-Modules.de]
* [https://faqwiki.zxnet.co.uk/wiki/TRD_format TRD format - Sinclair FAQ wiki]

@@ Line 24: / Line 24: @@
 [[wikipedia:TR-DOS|TR-DOS]] is an operating system for ZX Spectrum personal computer with Beta Disc floppy drive interface. Despite being developed by British company Technology Research Ltd, it was not especially popular in the West, but was more popular in USSR and post-USSR in 80-90s.
-¼" and 3½" floppies (([[ZX Spectrum Beta Disc 5.25" floppy]] and [[ZX Spectrum Beta Disc 3.5" floppy]]) are used with the following formats:
+¼" and 3½" floppies ([[ZX Spectrum Beta Disc 5.25" floppy]] and [[ZX Spectrum Beta Disc 3.5" floppy]]) are used with the following formats:
 {| class="wikitable"

@@ Line 66: / Line 66: @@
 * [http://www.zx-modules.de/fileformats/trdformat.html TRD disk image format - ZX-Modules.de]
 * [https://faqwiki.zxnet.co.uk/wiki/TRD_format TRD format - Sinclair FAQ wiki]
 [[Category:Disk Image Formats]]
 [[Category:ZX Spectrum]]

@@ Line 8: / Line 8: @@
 | subcat5        =
 | thiscat        =
-| extensions     = {{ext|trd}}
+| extensions     =
 | mimetypes      =
 | locfdd         =
@@ Line 15: / Line 15: @@
 | type code      =
 | uniform type   =
-| kaitai struct  = tr_dos_image
+| kaitai struct  =
 | conforms to    =
 | released       =
@@ Line 58: / Line 58: @@
 |}
-== {{ext|trd}} files: TR-DOS disk images ==
+Diskettes can be dumped to [[TRD]] files for use in emulators.
-−
-Diskettes can be dumped to {{ext|trd}} files, which are plain sector-by-sector headerless dumps (the same idea as <code>/dev/fd0</code>). Each sector is 256 bytes, each track contains 16 sectors. Tracks are arranged in the same order as "logical tracks" in TR-DOS: 0th track on 0th side, 0th track on 1st side, 1st track on 0th side, 1st track on 1st side, …. If remaining sectors at the end of floppy are unused, {{ext|trd}} file can be less than actual floppy size. These files are supported by most ZX Spectrum emulators.
 == Links ==
 * [https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt Internal TR-DOS functions]
 [[Category:ZX Spectrum]]

@@ Line 1: / Line 1: @@
 {{FormatInfo
-| name           = TR-DOS file system
+| name           = TR-DOS filesystem
 | formattype     = electronic
 | subcat         = Filesystem