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"Fake" XDF disk support works now

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What this means is that XDF disk images formatted as 80-track 23-sector-per-track images will work with XDF code that honors that format; however, I've not yet been able to test with "real" XDF disk images (ie, disk images created with DiskDump using the experimental --xdf flag).  "Real" XDF disk images almost certainly need more work (eg, setting all the sector IDs properly), but the groundwork has been laid.
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Jeff Parsons 2014-10-27 22:20:41 -07:00 • committed by jeffpar
commit 024f9fccf8
20 changed files with 1973 additions and 1809 deletions
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4
blog/2014/10/23/README.md
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@ -7,11 +7,11 @@ There are also some Debugger improvements; for example, if you turn on "fdc" and
Debugger using the "m fdc on" and "m int on" commands, all FDC (INT 0x13) software interrupts will be logged,
including descriptions and register values.
PC-DOS 7.00 still can't be setup from its non-standard 1.84Mb [XDF](http://www.os2museum.com/wp/the-xdf-diskette-format/)
PC-DOS 7.00 still can't be setup from its specially-formatted 1.84Mb [XDF](http://www.os2museum.com/wp/the-xdf-diskette-format/)
distribution disk images, "PC-DOS 7.00 (SETUP Disk 2)" through "PC-DOS 7.00 (SETUP Disk 5)", so your best bet is to boot
from the 1.44Mb "PC-DOS 7.00 (Boot Disk)".
Note that you must use a fairly new 80286 machine configuration, like this [8Mhz IBM PC AT](/configs/pc/machines/5170/ega/1152kb/rev3/),
Note that you must also use a fairly new 80286 machine configuration, like this [8Mhz IBM PC AT](/configs/pc/machines/5170/ega/1152kb/rev3/),
in order to use 1.44Mb diskette images; previous models did not support 3.5-inch diskette drives, unless they had been retrofitted
with a newer [BIOS](/devices/pc/bios/5170/).