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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'>The simh (and other common formats) use 32bit values to indicate tape record sizes and other info about a record or file mark. They don’t actually contain offset information. As such, the limit on size is the limit on space to contain the tape image.<o:p></o:p></span></p><p class=MsoNormal><a name="_MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D'><o:p> </o:p></span></a></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Tim Shoppa<br><b>Sent:</b> Wednesday, January 24, 2018 3:54 PM<br><br><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Many common tape image tools as of two decades use 32-bit integers to carry offsets around and will be limited to 4Gigabyte tape image sizes.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I don't think this is a fundamental limit to the tape image formats used by SIMH, just a common limitation of the tape image tools you might find from 20 years ago.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Tim.<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Jan 24, 2018 at 5:02 PM, Zane Healy <<a href="mailto:healyzh@avanthar.com" target="_blank">healyzh@avanthar.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal>What type/size of tapes does the VAX emulation support? I was looking through the doc’s and it wasn’t obvious to me. Is there a size limit?<br><br>Thanks,<br>Zane<br><br><br><br>_______________________________________________<br>Simh mailing list<br><a href="mailto:Simh@trailing-edge.com">Simh@trailing-edge.com</a><br><a href="http://mailman.trailing-edge.com/mailman/listinfo/simh" target="_blank">http://mailman.trailing-edge.com/mailman/listinfo/simh</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></body></html>