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Diffstat (limited to 'fenders.rst')
| -rw-r--r-- | fenders.rst | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/fenders.rst b/fenders.rst index fc46798..bc0bc17 100644 --- a/fenders.rst +++ b/fenders.rst @@ -44,7 +44,7 @@ OPTIONS DON'T reboot (coldstart) the Atari if Reset is pressed. The default is to coldstart. -b - Create **infile** as a blank ATR image and update it + Create **infile** as a blank single-density ATR image and update it in-place. This option requires **axe** to be present on *PATH*. May not be used when reading standard input. @@ -125,18 +125,20 @@ When installing the boot loader on a double-density disk, sector 720 is sector 720 is either unusable by DOS, or not used unless the disk is completely full, so this is less of a problem than you might think. -**fenders** and the **fenders** boot-loader code will work with DOS -2.5 "enhanced density" formatted floppies, but only partially: files -that use sectors above 720 will not appear in the menu (these are the -same files that DOS 2.5 lists with <> around the filename). - -**fenders** only works on Atari DOS 2.x and compatible (MyDOS, DOS XL, et -al) single-sided disk images, either single-density (720 sectors, 90K), -double-density (720 sectors, 180K), or "1050 enhanced" density (1040 -sectors, 130K, although 1050 enhanced density images must be in DOS 2.5 -format, *not* MyDOS, and see **LIMITATIONS** below). Other non-standard DOS -formats such as SpartaDOS or Atari DOS 3.0 and 4.0 are not supported. -Atari DOS 1.0 may or may not work (untested). +**fenders** has better compatibility with DOS 2.5 than the original +Atari version. Any files occupying sectors >=720 (the ones with <> +around the name) have their directory status bytes adjusted to make +them look like regular DOS 2.0 files. This allows them to display and +load correctly. The original Atari Fenders installer doesn't do this, +but the **fenders** author wrote a BASIC program to do the job, ages +ago. + +**fenders** only works on Atari DOS 2.x and compatible (MyDOS, DOS XL, +et al) single-sided disk images, either single-density (720 sectors, +90K), double-density (720 sectors, 180K), or "1050 enhanced" density +(1040 sectors, 130K, although 1050 enhanced density images must be in +DOS 2.5 format, *not* MyDOS). Other incompatible DOS formats such as +SpartaDOS or Atari DOS 1.0/3.0/4.0 are not supported. The **fenders** boot loader source code distributed with **fenders** is not the original source code (which has never been @@ -215,10 +217,6 @@ be used for file storage. No checking for non-standard formats (SpartaDOS, DOS 3, MyDOS with subdirectories, dedicated bootdisks, etc) is done. -If an "enhanced" 1050 density disk image has the bootloader installed, -it won't display the files using sectors above 720 (the ones which -would appear as *<filename.ext>* in the DOS 2.5 directory). - Actually, the above limitations are a direct result of the fact that **fenders** deals with the disk image at the "sector" level, and contains no code that understands the files, directory, or VTOC on the image. |