Hi Bernd,
MS-DOS v6 or v7.00 return for all 21.73 functions is actually "AL = 0, *CF
unchanged*", which is the CP/M style error return for unsupported functions. If
you take care to pre-init CY (Carry Flag set) before the call then these
versions of DOS will return AX = 7300h, CY, as they will leave the Carry Flag
unchanged. (Same for 21.71 functions used for the MS-DOS v7 LFN interfaces.)
Regards,
ecm
_______________________________________________
Freedos-devel mailing list
Freedos-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freedos-devel
