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[BUG] Floppy drive formatting issues

Posted: Wed 20 Jan, 2021 3:03 am
by teppic
I'm having issues formatting floppies on some machines when trying to format a 1.44M image (tried in MS DOS 3.3 and 6.22 with nothing loaded).

Configuration is set to a 1.44M drive and the BIOS is set to 1.44M also.

EDIT: I tried a couple more machines and it looks like it might affect all AMI BIOS machines.

Examples with MS-DOS 6.22 on a 486:


Example with MS-DOS 3.30 on a 286:


Another 286 machine, same floppy image, same settings, same OS image, but works.


Similarly, the Award SiS 486 machine with identical settings seem to be fine too.