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authorH. Peter Anvin <hpa@zytor.com>2008-07-03 15:22:39 -0700
committerH. Peter Anvin <hpa@zytor.com>2008-07-03 15:22:39 -0700
commit8e5db045c60ce25a9eb65a1803d47be4002a3e17 (patch)
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memdisk: install a DPT if needed in INT 1Eh; better zero-drive detection
Per the Interrupt list, treat INT 13 08 returning with CL=0 as a failure, meaning single drive only. If we find ourselves the only floppy drive, install a DPT into INT 1Eh. This appears to be needed for PC-DOS 7.0 to boot. This can be overridden with the "nodpt" option, and forced with the "dpt" option.
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