Hi Mary Robi, > I am programming a OS that uses FreeDOS as the > bootloader and I want to know how to get kernel version.
You can use the normal int 21.30 call: We return MS DOS style version numbers such as 5.0, 6.22 or 7.10 in AL.AH to indicate compatibility levels, but the BL part of the "serial number" is used for a FreeDOS version (for example decimal 39: FreeDOS kernel 2039) and if you call int 21 (hex) with ax=3000 (hex) then you also get fd as the returned OEM ID value of BH to indicate that the kernel is from the FreeDOS family. As Christian already said, once you checked that your DOS is a FreeDOS, you can call int 21 with ax = 33ff to receive a pointer in DX:AX (segment:offset) to a string which describes the FreeDOS version as text. The string ends with a 00 byte and can for example mention whether the kernel is made for 386 CPU, which compiler was used to make it and when it was compiled. Eric ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
