4 Jul
2009
4 Jul
'09
2:22 a.m.
On Fri, 2009-07-03 at 11:19 -0700, Fred Cisin wrote:
On Thu, 2 Jul 2009, Allison wrote:
Ensoniq Mirage, single-sided double-density with five 1024-byte sectors
followed by one 512-byte sector.
I still can't figure out how to format such a thing on a PC.
Gordon
I have a 4/84 with turborom, disk personality
card and 1MB Ramdisk
and it've very nice with four drives. One is 40track 2sided, the other
two are fitted to the other half height slot and are two 3.5" floppies at
720k/781k as there are a few formats that get a bit more on a disk.
The forth is tucked inside and used to hold stuff I always need.
That is a sweet setup.
Head selection is not by the FDC (1793) but by a
port. The FDC for side 2
is programmed as if it were side 1. A bit odd but there are worse.
not a very serious oddity, but worth mentioning, to alert anybody writing
conversion software on a PC that they will have to go slightly below INT13
and talk to the 765.
Yes, there were some other formats that got SERIOUSLY weird.