October 1st, 2012 - Antoine Vignau and
Olivier Zardini, founders of Brutal Deluxe Software, are
proud to introduce their newest software to the Apple II
community.
“I'm fEDD up” (now version 1.1) is Brutal Deluxe's second
answer to nowadays preservation of 5.25" diskettes on the
Apple II. Its main features are:
- Essential Data Duplicator compatible
If Utilico Microware's EDD or compatible card is installed in your system, it will use the card's powerful features to read track data. - Nibble and timing preservation
It saves raw nibbles and their associated time cycles in separate files. - ProDOS compatible
That may sound weird but that is important. SST is no longer needed ;-) The requirement of two drives is no longer needed.
The source code of the program is available.
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How to use?
- 1. Launch the application
Double-click the "imfEDDup.system" program
- 2. Press S
Enter an output filename of up to 11 characters
The copy process is launched...
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Main screen commands
- D/isk to file image
Enter an output filename of up to 11 characters
The application can guess the original file system.
Launch the copy process...
- S/ave file
Enter an output filename of up to 11 characters
Launch the copy process...
- O/ptions
Display the options menu...
- ?/Help
Shall I really what that does?
- CTRL-Q
Shall I really what that does?
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Option menu commands
- B/its
Change timebits of nibbles (1 or 2). Default is 2.
- C/hange original slot & drive
Select the slot & drive of your 5.25" disk controller card. Default is slot 6 and drive 1.
- E/DD slot
Select a slot where your EDD card is in (default is 0 and means no EDD card)
- F/ormat of diskette
If set, the application tries to find the file system of the diskette and
sets the interleaving accordingly. Default interleaving is the DOS 3.3 one.
- O/verwrite
If set, existing files with the same name will be replaced
- P/refix
Display a destination folder menu, press:
- RET to push a prefix,
- TAB to change to next volume,
- ESC to pop a prefix,
- A to accept the current prefix.
- S/tep
Select the arm step:
- 1.0 means every track (default)
- .50 means every half-track
- .25 means every quarter-track
- T/racks
Select the end track of the diskette:
- $22 like a standard diskette (default)
- $23 means one extra track
Now, you can copy up to 40 tracks!
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File formats
The application saves different files on your disk drive.
Please make sure you launch it from a 32MiB partition to save several disk images.
If the program encounters an I/O error while saving, that will stop the copy process.
- .EDD format
The most precise format. It contains data read from the 5.25" disk controller card before
the Logic State Sequencer performs its magic.
That means that data are read at a bit-level, it is a "simple" set of 1s and 0s.
Each phase contains $4000 (16384) bytes.
A standard $22 diskette (step 1 track) is 573,440 bytes long.
- .NIB format
It saves nibbles as if they were read by the Logic State Sequencer,
therefore some protections may be lost (and I assure you they are)
Each phase contains $1A00 (6656) bytes.
A standard $22 diskette (step 1 track) is 232,960 byteslong.
- .NIT format
It saves nibbles time cycle in a dedicated file.
The default value of the timebit is $2.
The different values are:
- $00 for 32 cycles nibbles,
- $01 for 36 cycles nibbles,
- $02 for 40 cycles nibbles.
Each phase contains $1A00 (6656) bytes.
A standard $22 diskette (step 1 track) is 232,960 byteslong.
- .DSK, .PO formats
It saves standard 16-sec disks of DOS 3.3, ProDOS, Pascal and CP/M disks.
The file extension is based on the operating system interleaving:
- .DSK for DOS 3.3 and unrecognized disks,
- .PO for ProDOS, Pascal and CP/M disks.
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File sizes
The combination of the Track and Step factors generates files of different file sizes.
Let's summarize them here (Hello Emulator Coders!):
FORMAT TRACK STEP FILE SIZE (in decimal bytes)
.EDD $22 1.0 573,440
.EDD $22 .50 1,130,496
.EDD $22 .25 1,687,552
.EDD $23 1.0 589,824
.EDD $23 .50 1,163,264
.EDD $23 .25 1,736,704
.EDD $24 1.0 606,208
.EDD $24 .50 1,196,032
.EDD $24 .25 1,785,856
.EDD $25 1.0 622,592
.EDD $25 .50 1,228,800
.EDD $25 .25 1,835,008
.EDD $26 1.0 638,976
.EDD $26 .50 1,261,568
.EDD $26 .25 1,884,160
.EDD $27 1.0 655,360
.EDD $27 .50 1,294,336
.EDD $27 .25 1,933,312
.NIB/T $22 1.0 232,960
.NIB/T $22 .50 459,264
.NIB/T $22 .25 911,872
.NIB/T $23 1.0 239,616
.NIB/T $23 .50 472,576
.NIB/T $23 .25 938,496
.NIB/T $24 1.0 246,272
.NIB/T $24 .50 485,888
.NIB/T $24 .25 965,120
.NIB/T $25 1.0 252,928
.NIB/T $25 .50 499,200
.NIB/T $25 .25 991,744
.NIB/T $26 1.0 259,584
.NIB/T $26 .50 512,512
.NIB/T $26 .25 1,018,368
.NIB/T $27 1.0 266,240
.NIB/T $27 .50 525,824
.NIB/T $27 .25 1,044,992
.DSK/PO $22 1.0 143,360
.DSK/PO $23 1.0 147,456
.DSK/PO $24 1.0 151,552
.DSK/PO $25 1.0 155,648
.DSK/PO $26 1.0 159,744
.DSK/PO $27 1.0 163,840
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Minimum System Requirements
It is a 6502 compatible application and it requires a 80-column card.
It has been tested on Apple IIgs ROM 01 & ROM 3 versions.
There's 6KiB left for ADTPro compatibility ;-)
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Copyright Notice
Parts of the source code (UP.EDD.S) are (c) 1986, Utilico Microware.
Artwork by Daniel Kruszyna (http://krue.net/)
Download :
i'm fEDD up v1.1 - 800 KB disk image
i'm fEDD up v1.1 - 140 KB disk image
i'm fEDD up v1 - 800 KB disk image
i'm fEDD up v1 - 140 KB disk image
EDD Plus Manual - 1.2 MB