Does anybody have an update on where the MIPS port has got to after the flurry of activity in June?

Mark Morgan Lloyd wrote

Does anybody have an update on where the MIPS port has got to after the flurry of activity in June?

I'm very interested in this as well, as I am planning to do a controller based on a (future) PIC32 chip, that has a MIPS CPU and lots of internal ROM and RAM and thus allows for creating a very cheap controller with a very small chip count.

-Michael

Mark Morgan Lloyd wrote

Does anybody have an update on where the MIPS port has got to after the flurry of activity in June?

I can not say any details (I'm not envolved with the MIPS port), but we have at least on testsuite running on mipsel-linux with around 150 errors. See here:
http://www.freepascal.org/testsuite/cgi-bin/testsuite.cgi?action=1&failedonly=1&run1id=117971

So I'd say that it's not as good as other platforms, but it's not entirely bad either (as most tests seem to pass already).

Regards,
Sven

I worked on it quite some time before leaving for holidays, and tried to get it working again with current svn trunk... I haven't yet checked if current svn trunk is
usable for mipsel target.

Currently, using revision 21906
you should be able to do a complete 'make all install' at fpcsrc level with one restriction:
'make all' normally uses -O2 option
by default, but this optimization option is still broken for mipsel cpu.
adding
FPCCPUOPT=-O1 should enable a successful completion of the 'make all'.

As Sven mentioned , it still has something like 145 failures for a testsuite, so there are still lots of open issues.

Commit rev 22196 fixes one problem related to fpu register saving.

Pierre Muller

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Thanks for that Pierre, and thanks for the work you've put into it. I don't know whether I'll be any use for fixing any of the remaining issues, but will make a point of getting it onto one of my development systems.

I'm told that Lemote is starting to make server-style boxes (8 cores, 16Gb) but price isn't known yet.

When I started comparing the FPC source with the unofficial MIPS fork on Sourceforge, I was hoping that I'd be able to make some sense of what was going on and document it. I think that Paul Robinson approached a potential zSeries (IBM mainframe port) with the same intention http://wiki.lazarus.freepascal.org/ZSeries#Implementation_status

Does anybody have an update on where the MIPS port has got to after the flurry of activity in June?

Since it cannot catch the time requirement of our project, I have suspended the work temporary due to other affairs. The last time I checked the code(about the end of July) it is able to run the testbench, people are working on PIC code support etc.