> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of Craddock, Chris > Sent: Wednesday, June 06, 2007 9:06 PM > To: IBM-MAIN@BAMA.UA.EDU > Subject: Re: mainframe = superserver > > > > What is not possible, that it was IBM or Amdahl did it? > > Sorry, my rant was not clear. Operating systems in particular have > pretty significant dependencies on the instruction set > architecture. It > is just impossible to run a Microsoft Windows operating > system (binary) > on anything that isn't a faithful implementation of the Intel x86 or > IA32 or IA64 instruction set architecture. It's challenging > enough even > for AMD. > > Exceptions? Yes, there was a version of NT (3.something) that > ran on the > DEC ALPHA, but that was done by Microsoft themselves and it's > long gone > anyway. There were various Apple machines that could sort of > run Windows > in a hit and miss fashion (lots of things didn't really work) and now > you can run Windows quite faithfully on the Intel-based MACS - but > they're real Intel chips so it ought to work. > > Could somebody have written an Intel x86 or IA32 or IA64 emulator on > S/370 or S/390 or z? Well yeah. But it's a huge amount of work and at > the end of the day, why would you bother? If such a thing > ever HAD been > done at IBM, Amdahl (or anywhere else) as Ed suggested, it would be a > skunk-works effort for sure. And I'd bet you a donut it wouldn't work > worth spit anyway. > > CC
It has been done. The emulator used was called BOCHS. http://www.ibm.com/linux/files/zSeries_linux.pdf Linux on 390 Port forum message: SNA (Sine Nominae Associates) did it. http://listserv.uark.edu/scripts/wa.exe?A2=ind0608&L=ibmvm&D=0&P=35429 And you're right. It doesn't work worth anything. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
