Mark Pizzolato b98ece819b DISK: Extended and corrected autosize logic for disk attach. ...

Previously only the actual size of the container file was used when
attaching a disk.  This was correct only when the size of the container
file actually aligned with the simulated disk drive.  disks created with
sim_disk_attach automatically write to the last sector of a simulated
disk file when the disk is created.  Therefore, auto sizing worked correctly
for any disk created with sim_disk_attach.

Disk images created with simh prior to 4.X would only write to the
portions of the disk drive when the simulated system writes data.  These
disk images would only be properly sized if the simulated operation of
the disk had actually written to the last block of the disk.  Auto sizing of
these disks would usually size the resulting disk incorrectly and strange
behaviors might occur when using such an incorrectly auto sized disk.

Fixes #357

2016-11-29 18:53:52 -08:00

15 KiB

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