support up to LASTDRIVE=32 (lDOS or patched MS-DOS v7)
Changing to a drive or running DIR with only a drive letter and
colon didn't work. (DIR with drive letter, colon, backslash did
work already.) Without this patch applied:
C:\>]:
Bad command or filename - "]:".
C:\>dir ]:
File not found. - ']:'
C:\>dir ]:\
Volume in drive ] is SRDXMS 2.10
Directory of ]:\
LDEBUG COM 94,208 09-19-25 6:35p
1 file(s) 94,208 bytes
0 dir(s) 948,224 bytes free
With this patch applied:
C:\>]:
]:\>dir ]:
Volume in drive ] is SRDXMS 2.10
Directory of ]:\
LDEBUG COM 94,208 09-19-25 6:35p
1 file(s) 94,208 bytes
0 dir(s) 948,224 bytes free