K 10 svn:author V 4 kato K 8 svn:date V 27 1999-08-05T03:12:20.000000Z K 7 svn:log V 228 Provides discontinuous unit number support to make external FDD bootable on 1 FDD PC98 machines. (When an external FDD unit is installed, unit numbers become discontinuous.) Submitted by: IMAI Takeshi END