compactflash.device V1.34 - PCMCIA CompactFlash driver for Amiga 600/1200

Fork of driver/media/CFD133.lha with improvements for >4GB CompactFlash cards.

CHANGES IN 1.34 (22.10.2025)
============================
* Made >4GB CompactFlash cards usable
  - Workaround for "get IDE ID" on large capacity cards
  - Limited multi-sector IOs for reliability on >4GB cards
* See README.md for detailed configuration options

FEATURES
========
* Supports CompactFlash, MicroDrive, and various adapters (SD, MemoryStick, SmartMedia)
* TD64 and SCSI emulation support
* Works with fat95 filesystem for FAT32 support
* Supports cards up to 4GB reliably 
* Transfer speeds up to 2.2 MB/s read, 1.9 MB/s write (with MaxTransfer > 0x200 if reliable and working CF firmware)

REQUIREMENTS
============
* Amiga 600 or 1200 with PCMCIA slot
* AmigaOS 2.0 or higher (3.2.3 tested)
* "CompactFlash to PCMCIA/ATA" adapter card
* fat95 filesystem (disk/misc/fat95.lha) recommended

INSTALLATION
============
1. Copy devs/compactflash.device to DEVS:
2. Have fat95 installed on your system
3. Mount the drive by double-clicking devs/CF0

For OS 3.5+:
  Copy def_CF0.info to sys:prefs/env-archive/sys and env:sys

SOURCE CODE
===========
Source code available at:
https://github.com/pulchart/cfd

Licensed under GNU LGPL v2.1

HISTORY
=======
v1.34 10/2025 - >4GB CF card support (Jaroslav Pulchart)
v1.33  1/2017 - Init reliability fix (Paul Carter)  
v1.32 11/2009 - Error messages, open source release (Torsten Jager)
v1.31 11/2009 - Memory mapped mode fix
v1.30 11/2009 - Major API rework for ROM use
...
(see README.md for complete history back to v1.01 from 2002)

WORKAROUNDS
===========
For PCMCIA conflicts with other drivers:
  Flags = 1    /* enable "cfd first" hack */

For cards without valid signature:
  Flags = 2    /* skip invalid PCMCIA signature */

CHECKSUMS
=========
compactflash.device (8412 bytes):
  MD5:    4e7ad2c204d9a9731d954aa2ef689ab6
  SHA256: 175e071af7cee84b6fd2553f4c19a9a54a49c3972da838a1623047d973226d6b

CONTENTS
========
cfd/c/cfddebug        - Debug/logging tool
cfd/c/pcmciacheck     - PCMCIA check utility
cfd/c/pcmciaspeed     - Speed test utility
cfd/devs/CF0          - Mountlist entry
cfd/devs/compactflash.device - The driver
cfd/src/              - Full assembler source code
cfd/adapter*.jpg      - Example adapter photos
cfd/LICENSE           - GNU LGPL v2.1
cfd/README.md         - Full documentation

Have Fun!

"CompactFlash" is (TM) by CompactFlash Association

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
drwxr-xr-x  1000/1000        0       0 ****** -lhd- 0000 Dec 21 11:22 cfd/
-rw-r--r--  1000/1000     9637   26526  36.3% -lh5- e336 Dec 21 11:22 cfd/LICENSE
-rw-r--r--  1000/1000     3936    8449  46.6% -lh5- bc9c Dec 21 11:22 cfd/README.md
-rw-r--r--  1000/1000    48501   48688  99.6% -lh5- 1172 Dec 21 11:22 cfd/adapter.jpg
-rw-r--r--  1000/1000     2336    2925  79.9% -lh5- e3ec Dec 21 11:22 cfd/adapter.jpg.info
-rw-r--r--  1000/1000    28360   30514  92.9% -lh5- 0f36 Dec 21 11:22 cfd/adapter2.jpg
-rw-r--r--  1000/1000     2336    2925  79.9% -lh5- e3ec Dec 21 11:22 cfd/adapter2.jpg.info
drwxr-xr-x  1000/1000        0       0 ****** -lhd- 0000 Dec 21 11:22 cfd/c/
-rw-r--r--  1000/1000      615     812  75.7% -lh5- 7f7c Dec 21 11:22 cfd/c/cfddebug
-rw-r--r--  1000/1000     1116    1708  65.3% -lh5- 5584 Dec 21 11:22 cfd/c/pcmciacheck
-rw-r--r--  1000/1000      761     976  78.0% -lh5- 38ad Dec 21 11:22 cfd/c/pcmciaspeed
-rw-r--r--  1000/1000     1357    1694  80.1% -lh5- 336b Dec 21 11:22 cfd/c.info
-rw-r--r--  1000/1000     1695    1958  86.6% -lh5- da76 Dec 21 11:22 cfd/def_CF0.info
drwxr-xr-x  1000/1000        0       0 ****** -lhd- 0000 Dec 21 11:22 cfd/devs/
-rw-r--r--  1000/1000      221     320  69.1% -lh5- c8d6 Dec 21 11:22 cfd/devs/CF0
-rw-r--r--  1000/1000     1460    2431  60.1% -lh5- 81de Dec 21 11:22 cfd/devs/CF0.info
-rw-r--r--  1000/1000     5194    8412  61.7% -lh5- 8bd3 Dec 21 11:22 cfd/devs/compactflash.device
-rw-r--r--  1000/1000     1358    1694  80.2% -lh5- fe1c Dec 21 11:22 cfd/devs.info
drwxr-xr-x  1000/1000        0       0 ****** -lhd- 0000 Dec 21 11:22 cfd/src/
-rw-r--r--  1000/1000    21798   76931  28.3% -lh5- a0ba Dec 21 11:22 cfd/src/cfd.s
-rw-r--r--  1000/1000     4056   10060  40.3% -lh5- c296 Dec 21 11:22 cfd/src/cfddebug.s
-rw-r--r--  1000/1000     6251   18850  33.2% -lh5- 54f1 Dec 21 11:22 cfd/src/pcmciacheck.s
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        22 files  140988  245873  57.3%            Dec 22 01:34