Being a mad scientist causes my mind to wander. I implied some sort of 
application that would take a 32-bit macOS app and turn it into a 64-bit app 
suitable for delivering to customers in the interim. But I gave solutions only 
for a sophisticated user to run 32-bit applications from Catalina (or so) 

My immediate thoughts: Bundles might make a conversion for the macOS easier. 
Dependent 32-bit dynamic libraries would have to be moved into a folder in the 
bundle, and file I/O will do redirection. The app's program would be moved and 
replaced with something else that uses some sort of hyper-something to catch 
the INTs or that will use ptrace() as a debugger would. In the latter case the 
INTs might need to be translated statically by the converter. I have not made a 
modern debugger, tracer or hyper-thing, so I'm just guessing.


> On Oct 10, 2019, at 8:34 AM, Bob Sneidar via use-livecode 
> <> wrote:
> Mad scientist indeed! ;-)
> Bob S
>> On Oct 9, 2019, at 16:59 , Dar Scott Consulting via use-livecode 
>> <> wrote:
>> Oh. That looks hard. I don't even know how to take control of the 0x80 
>> interrupt.
>> However, here are some ideas for alternatives.
>> Virtual
>> Parallels has Coherence; Virtual Box has Seamless Mode; VMware has Unity. (I 
>> don't use these, so check out what I say.) The capability is roughly the 
>> same. You can run an application on a client OS in a window on the host. So, 
>> if you have an older macOS running on a virtual machine that can run your 
>> app, you can set things up so that you can double-click on your desktop and 
>> run a 32-bit app.
>> Real
>> Another method is to set up little "servers" you can remote into. For 
>> example, instead of upgrading to Catalina on your old Mac Mini, get a new 
>> Mac Mini with Catalina and remote desktop into the old Mac Mini. Or have a 
>> Mac that is running several virtual machines you can remote into (use memory 
>> ballooning to share it well). The Apple EULA has constraints, but I think 
>> this is OK. 
>> Now, what if you can run an app on a remote machine like Coherence/Unity/SM? 
>> You can readily run a single app in a window for a linux server using 
>> several programs such as nomachine and (I think) xpra. But I don't know 
>> about macOS. Maybe you can make a single-window app full screen and adjust 
>> the size of the client window. I haven't tried this.
>> Dar Scott
>> Mad Scientist
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