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The emulator is able to emulate disk drives and tape recorders if provided with suitable disk images or tape images. An image is a raw dump of the contents of the media, and must be attached before the emulator can use it. “Attaching” a disk or tape image is like “virtually” inserting a diskette or a cassette into the disk drive or the tape recorder: once an image is attached, the emulator is able to use it as a storage media.
There are five commands that deal with disk and tape images:
The first four commands are used to insert and remove the virtual disks and cassettes from the respective units. On the other hand, the last commands tries to guess the type of the image you are attaching from its name and size, and attaches it to the most reasonable device.
Supported formats are D64
, G64
, P64
for disk images
(devices 8, 9 and 10) and T64
and TAP
for tape images.
The ancient X64
format is deprecated and subject for removal.
Notice that T64
support is read-only, and that the cassette is
automatically rewound when you reach its end. For actually emulating tape, the
TAP
format is highly recommended.
Another important feature is that raw Commodore BASIC binary files and .P00 files can be attached as tapes. As you can autostart a tape image when it is attached (see “Autostarting” an image), this allows you to autostart these particular files as well.
You can attach a disk for which you do not have write permissions: when this
happens, the 1541 emulator will emulate a write-protected disk. This is
also useful if you want to prevent certain disk images from being
written to; in the latter case, just remove the write permission for
that file, e.g., by doing a chmod a-w
.
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