From mboxrd@z Thu Jan 1 00:00:00 1970 From: stewart@serissa.com (Lawrence Stewart) Date: Fri, 23 Mar 2018 12:59:03 -0400 Subject: [TUHS] long lived programs In-Reply-To: <7wfu4qrc6w.fsf@junk.nocrew.org> References: <02ab01d3c2be$cf335920$6d9a0b60$@ronnatalie.com> <7wfu4qrc6w.fsf@junk.nocrew.org> Message-ID: Suppose we define a machine architecture not for building hardware, but specifically for itself being easy to emulate? This is by analogy to para-virtualized device drivers, which are not there to model real devices, but to be easy to support in a virtual machine environment. > On 2018, Mar 23, at 12:25 PM, Lars Brinkhoff wrote: > > Clem Cole wrote: >> Ron Natalie wrote: >>> The bigger issue than software getting obsoleted is that the platform >>> needed to run it goes away. >> >> Although simh is huge step in that direction ;) > > I imagine a future where SIMH itself only runs on obsolete platforms and > has to be run inside an emulator. Repeat, etc etc.