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EnigmA Amiga Run 1996 February
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EnigmA AMIGA RUN 04 (1996)(G.R. Edizioni)(IT)[!][issue 1996-02][Skylink CD III].iso
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util3
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floppy.lha
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floppy.doc
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Text File
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1992-09-02
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3KB
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93 lines
Floppy.device 1.0 © 1995 by OR
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
INTRODUCTION
An improvement over the trackdisk.device.
It's freeware.
REQUIREMENTS:
KS2.0+, 8372 Agnushr+
TESTED AT THESE SYSTEMS:
A1200, internal floppy drive
FEATURES
- Trackdisk compatible.
- 16% faster data access than trackdisk.
- 9% big disk size than trackdisk.
- Supports only 1MB capacity drives (this release only).
- Bootable and nonbootable versions available.
PROGRAMING INFO
- AbortIO() function returns IOERR_NOCMD.
- ETD_XXX, TD_RAWREAD, TD_RAWWRITE commands not supported.
- DiskChange interrupt work for all devices.
- Blitter stuff is done by QBlit() like trackdisk.
- Do not forget to update before TD_MOTOR-off command.
- CMD_CLEAR and CMD_UPDATE commands only affects floppy.device buffers.
- TD_FORMAT command firstly updates and clears buffers, and doesnt
verifies and buffers will be stay in cleared.
- TD_REMOVE command is supported but should not be used.
- CMD_UPDATE & CMD_WRITE commands verifies the written track
(no comparing).
- No drive clicks.
- Retry count is zero.
- Two track buffers (lower and upper sides of current cylinder).
- Phisical track range is 12596<>12730 bytes (mfm) assumed.
- Dos will call CMD_UPDATE and CMD_CLEAR commands after disk removed
(if mounted). At this time, if buffers were not updated disk-light will
blink and buffers will be cleared.
INSTALLATION
Copy nonbootable/floppy.device or bootable/floppy.device to
Devs: directory.
Copy FS0 and FS0.info to Devs:DosDrivers directory.
Double click the FS0 icon to mount the drive or it can be used
standalone.
HINTS AND TIPS
- Nonbootable version may be a little bit faster than the bootable
version if a fast memory exist in the system ($C00000 may not a real
fast memory..).
- Do not use bootable version in A500/A2000 which have 1MB chip memory,
due to clearing beyond of the first 512KB chip memory after reset.
- Sometimes after mount command the device handler will be not
activated. You may use DiskChange command.
- 'Avail flush' command removes the device from memory if it is
available.
- 'Assign FS0: dismount' command is available.
Disk size:
Drive capacity floppy format trackdisk format PC format
-------------- ------------- ---------------- ---------
1MB 960KB 880KB 720KB
2MB 1960KB 1760KB 1440KB
4MB 3920KB 3520KB 2880KB
Email address:
Bitnet: PROHST03@TREARN
Internet: PROHST03@VM3090.EGE.EDU.TR
*<>*