Hi, On Fri, Jul 29, 2022 at 1:45 PM Steve Nickolas <[email protected]> wrote: > > On Fri, 29 Jul 2022, Ralf Quint wrote: > > > But IIRC, the common way to check for the presence of an ANSI device driver >> was to check via an INT 2Fh (multiplexer) call (don't recall the exact call >> value > > (AX/AH)). > > That would only work on MS-DOS 4 or later and I'm not sure NANSI supports > it, but according to RBIL, it's INT2F/AX=1A00, return FF in AL.
I remember when Eric Auer added it to NANSI, so it should support it: * https://docs.huihoo.com/help-pc/int-int_2f_0.html INT 2F,0 - DOS Multiplex Interrupt - Get Installed State AL = 00 AH = 1A for ANSI.SYS (DOS 4.0+) on return: AL = 00 not installed, ok to install = 01 not installed, do NOT install = FF installed _______________________________________________ Freedos-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-devel
