[comp.os.cpm] Conversion form CP/M to DOS

SonicDruid@SCTNVE.SCT.PEACHNET.EDU (06/03/91)

 Yes, it is possible to run DOS on your machine since you have a 8086
processor (CP/M 86), so your machine would be similar to the Z-100
which runs both CP/M 86 and DOS, but the only problem is that with the
8086 processor as opposed to the 8088 the machine isn't totally  100%
IBM compatible, but it runs some version of DOS written for the machine,
but reading other DOS disks (IBM, etc.) is not a problem.
  Something like DOS 1.0 - 2.0 might boot off your machine right off, but
no guarantees....  ( The Z-100's ran those versions when I used to use
them....and I went back and forth between DOS and CP/M with the Rdcpm
command, and maybe some other command for reading DOS disks....

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del@fnx.UUCP (Dag Erik Lindberg) (06/14/91)

In article <5B06020E2B280175-SCTNVE*SonicDruid@sctnve.sct.peachnet.edu> SonicDruid@SCTNVE.SCT.PEACHNET.EDU writes:
> Yes, it is possible to run DOS on your machine since you have a 8086

True.

>8086 processor as opposed to the 8088 the machine isn't totally  100%
>IBM compatible,

Bogus!  An 8086 is indistinguishable from an 8088 for all intents and
purposes.  Saying an 8086 isn't an 8088 and therefore not 100% IBM
compatible is equivalent to saying that an 80286 or 80386 is not an 8088
so therefor you are not 100% IBM compatible.

>but it runs some version of DOS written for the machine,
>but reading other DOS disks (IBM, etc.) is not a problem.

This is what may cause a problem.  The actual compatibility issues in 
PC-clone machines are related to hardware addressing and the BIOS
software.  If hardware is different, or the BIOS is significantly different,
then there probably would have to be a custom version of MSDOS for the
beast.  Note that the CPU has nothing to do with it (as long as it isn't
a 6809 :-)

-- 
del AKA Erik Lindberg                             uunet!pilchuck!fnx!del
                          Who is John Galt?