[erlang-questions] r17 beam compatibility
Tue Feb 4 16:54:04 CET 2014
Ok, thanks. Good thing you reminded me where to look! :)
On Tue, Feb 4, 2014 at 3:27 PM, Magnus Henoch
> Magnus Henoch <magnus@REDACTED> writes:
> > Vlad Dumitrescu <vladdu55@REDACTED> writes:
> >> Hi,
> >> This is difficult to test comprehensively, so I wil ask: Are there any
> >> changes in the BEAM format in R16 and R17, so that one can't run these
> >> newer beams on R15?
> >> I know it's not a very good idea, but I might be forced to do that...
> Or I
> >> will have to work around the problem somehow.
> > According to the comments in genop.tab, there are five new opcodes in
> > R16, but none in 17.0:
> ... though on closer inspection, it seems like that comment is
> misleading: those opcodes were added in 17.0, which suggests that code
> compiled with R16 should run on R15, and code compiled with R17 should
> run on R15 as long as it doesn't use maps.
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