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Date:      Mon, 31 Aug 2020 19:00:34 +0100
From:      Charles Lecklider <freebsd-stable@lists.invis.net>
To:        freebsd-stable@freebsd.org
Subject:   Cannot find announcement that min supported i386 CPU is now i686
Message-ID:  <4460db23-9a29-7972-1b41-74585764a5d7@lists.invis.net>

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Having just trashed my dual Pentium 233 MMX by installing 11.4 I went
digging to find the cause - and I found it.

As you can see from objdump below, clearly a decision was made that 11.4
would no longer support anything before a i686.

Ignoring for a moment the wisdom of making breaking changes to a minor
version, please could someone tell me where the announcement was made?

Thanks!



~/ISO/FreeBSD-11.3/bin $ objdump -d -f ls | grep cmov
~/ISO/FreeBSD-11.3/bin $

~/ISO/FreeBSD-11.4/bin $ objdump -d -f ls | grep cmov
 804974c:	0f 48 c6             	cmovs  %esi,%eax
 8049765:	0f 48 c6             	cmovs  %esi,%eax
 80497a3:	0f 48 c6             	cmovs  %esi,%eax
 80497b5:	0f 48 c6             	cmovs  %esi,%eax
 8049807:	0f 48 ce             	cmovs  %esi,%ecx
 8049818:	0f 49 f0             	cmovns %eax,%esi
 804a303:	0f 45 d9             	cmovne %ecx,%ebx
 804a30d:	0f 45 d9             	cmovne %ecx,%ebx
 804a318:	0f 45 d9             	cmovne %ecx,%ebx
 804a366:	0f 44 cb             	cmove  %ebx,%ecx
 804a3a5:	0f 49 c8             	cmovns %eax,%ecx
 804a3da:	0f 45 cb             	cmovne %ebx,%ecx
 804a41d:	0f 45 cb             	cmovne %ebx,%ecx
 804a451:	0f 44 c8             	cmove  %eax,%ecx
 804a48b:	0f 45 c1             	cmovne %ecx,%eax
 804a50d:	0f 44 c8             	cmove  %eax,%ecx
 804a55d:	0f 45 f0             	cmovne %eax,%esi
 804a567:	0f 45 f0             	cmovne %eax,%esi
 804af65:	0f 44 c8             	cmove  %eax,%ecx
 804ba4c:	0f 44 c1             	cmove  %ecx,%eax
 804bd24:	0f 44 f8             	cmove  %eax,%edi
 804be33:	0f 44 d1             	cmove  %ecx,%edx
 804be3e:	0f 45 d1             	cmovne %ecx,%edx
 804c2dd:	0f 44 c8             	cmove  %eax,%ecx
 804c444:	0f 44 d8             	cmove  %eax,%ebx
 804c4b8:	0f 44 5d e4          	cmove  -0x1c(%ebp),%ebx
 804c505:	0f 44 c1             	cmove  %ecx,%eax
 804c573:	0f 45 c8             	cmovne %eax,%ecx
 804c5c7:	0f 47 d1             	cmova  %ecx,%edx
 804c5d0:	0f 47 c8             	cmova  %eax,%ecx
 804c6a0:	0f 44 d1             	cmove  %ecx,%edx
 804c6a5:	0f 45 d3             	cmovne %ebx,%edx
 804c749:	0f 44 d7             	cmove  %edi,%edx
 804c74e:	0f 45 d1             	cmovne %ecx,%edx
 804c7a4:	0f 44 f8             	cmove  %eax,%edi
 804ca2d:	0f 44 d1             	cmove  %ecx,%edx
 804ca32:	0f 45 d7             	cmovne %edi,%edx
 804cb93:	0f 44 d6             	cmove  %esi,%edx
 804cb9e:	0f 45 d1             	cmovne %ecx,%edx
 804cd0c:	0f 44 ca             	cmove  %edx,%ecx
 804cd11:	0f 45 c8             	cmovne %eax,%ecx




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