On 2014-04-19 13:01 (GMT-0400) dmccunney composed: > Er, 486 != XT hardware.
> I still have my original XT sitting on a shelf. It has a replacement > motherboard with a 10 *mhz* NEC V20 CPU, a Hercules graphics card, and > two Seagate ST-225 20 *MB* MFM hard drives connected to an add-on > controller card. (They pre-date IDE.) > If the target is genuine XT hardware, I'm not surprised if a more > recent CHKDSK will fail to run. Among other reasons, it's likely > compiled to run on >386 CPUs, and simply won't execute on anything > earlier. The XT CPU is an 8088, which, like the 8086 from which it is derived, is a 16 bit CPU. The difference between them is the 8088 has an 8 bit IO bus path (an IBM cost reduction misfeature incorporated into the XT), while the 8086 has 16 bit. The NEC V20 is a functional clone of the 8088 intended to be run at higher clock speeds, and with claimed greater internal efficiency. None AFAIK can possibly run 32 bit software. http://en.wikipedia.org/wiki/List_of_Intel_microprocessors#The_16-bit_processors:_MCS-86_family -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
