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Update documentation for the Roland D20 format.

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David Given
2023-07-31 23:36:45 +02:00
parent c297adb0c7
commit 294ac87503
3 changed files with 22 additions and 8 deletions
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2
README.md
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@@ -132,7 +132,7 @@ choices because they can store multiple types of file system.
| [`n88basic`](doc/disk-n88basic.md) | N88-BASIC: PC8800/PC98 5.25" 77-track 26-sector DSHD | 🦄 | 🦄 | |
| [`northstar`](doc/disk-northstar.md) | Northstar: 5.25" hard sectored | 🦄 | 🦄 | |
| [`psos`](doc/disk-psos.md) | pSOS: 800kB DSDD with PHILE | 🦄 | 🦄 | PHILE |
| [`rolandd20`](doc/disk-rolandd20.md) | Roland D20: 3.5" electronic synthesiser disks | 🦖 | | ROLAND |
| [`rolandd20`](doc/disk-rolandd20.md) | Roland D20: 3.5" electronic synthesiser disks | 🦄 | 🦖 | ROLAND |
| [`rx50`](doc/disk-rx50.md) | Digital RX50: 400kB 5.25" 80-track 10-sector SSDD | 🦖 | 🦖 | |
| [`smaky6`](doc/disk-smaky6.md) | Smaky 6: 308kB 5.25" 77-track 16-sector SSDD, hard sectored | 🦖 | | SMAKY6 |
| [`tids990`](doc/disk-tids990.md) | Texas Instruments DS990: 1126kB 8" DSSD | 🦖 | 🦖 | |

10
doc/disk-rolandd20.md
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@@ -9,9 +9,13 @@ drive, used for saving MIDI sequences and samples.
Weirdly, it seems to use precisely the same format as the Brother word
processors: a thoroughly non-IBM-compatible custom GCR system.
FluxEngine pretends to support this, but it has had almost no testing, the only
disk image I have seen for it was mostly corrupt, and very little is known
about the format, so I have no idea whether it's correct or not.
FluxEngine supports both reading and writing D20 disks, as well as basic support
for the filesystem, allowing files to be read from and written to D20 disks.
Note that the D20 was never intended to support arbitrary files on its disks and
is very likely to crash if you put unexpected files on a disk. In addition,
while the file format itself is currently unknown, there is a header at the top
of the file containing what appears to be the name shown in the D20 file
browser, so the name by which you see it is not necessarily the filename.
Please [get in touch](https://github.com/davidgiven/fluxengine/issues/new) if
you know anything about it.

18
src/formats/rolandd20.textpb
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@@ -1,6 +1,7 @@
shortname: 'Roland D20'
comment: '3.5" electronic synthesiser disks'
read_support_status: DINOSAUR
read_support_status: UNICORN
write_support_status: DINOSAUR
documentation:
<<<
@@ -10,14 +11,23 @@ drive, used for saving MIDI sequences and samples.
Weirdly, it seems to use precisely the same format as the Brother word
processors: a thoroughly non-IBM-compatible custom GCR system.
FluxEngine pretends to support this, but it has had almost no testing, the only
disk image I have seen for it was mostly corrupt, and very little is known
about the format, so I have no idea whether it's correct or not.
FluxEngine supports both reading and writing D20 disks, as well as basic support
for the filesystem, allowing files to be read from and written to D20 disks.
Note that the D20 was never intended to support arbitrary files on its disks and
is very likely to crash if you put unexpected files on a disk. In addition,
while the file format itself is currently unknown, there is a header at the top
of the file containing what appears to be the name shown in the D20 file
browser, so the name by which you see it is not necessarily the filename.
Please [get in touch](https://github.com/davidgiven/fluxengine/issues/new) if
you know anything about it.
>>>
image_reader {
filename: "rolandd20.img"
type: IMAGETYPE_IMG
}
image_writer {
filename: "rolandd20.img"
type: IMAGETYPE_IMG