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Subject: Re: Ada on Apple's new procesors
From: Andreas ZEURCHER <ZUERCHER_Andreas@outlook.com>
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On Tuesday, February 9, 2021 at 12:21:38 PM UTC-6, Brian Drummond wrote:
> On Mon, 08 Feb 2021 20:51:48 -0800, Jerry wrote:=20
>=20
> > On Monday, June 22, 2020 at 3:53:01 PM UTC-7, Jerry wrote:=20
> >> Apple is beginning its third nightmare transition to a new processor=
=20
> >> family. What does this mean for Ada on macOS?=20
> >>=20
> >> Jerry=20
> > OP here. Did this thread ever give a simple answer? From my perspective=
=20
> > it sort of ran off into the weeds. I use GNAT for my personal research=
=20
> > projects on my Mac. I don't sell the software.=20
> > Jerry
> Third?=20
>=20
> 6502=20
> 68000 family=20
> Power PC=20
> Intel x86(_64)=20
> ARM=20
>=20
> -- Brian

The 6502 was on the Apple I and Apple II so non sequitur as much as Apple's=
 Z-80 CP/M plug-in board also for the Apple II.  The 680X0 was the initial =
ISA on the 1st Mac.  So Jerry is correct:  3 transitions 1) 680X0-to-POWER,=
 2) POWER-to-x86, 3) x86-to-ARM.  The only way to get to more than 3 proces=
sor transitions on Mac is to consider POWER-to-x86-32 and then x86-32-to-x8=
6-64 as 2 full-fledged transitions, which they sort of were but sort of wer=
en't.