[kaffe] More mipsel jit3
rsdio at metastatic.org
Tue Mar 9 11:55:03 PST 2004
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>>>>> "Kevin" == Kevin D Kissell <kevink at mips.com> writes:
Kevin> That's not at all surprising. The trickiest thing that I had
Kevin> to fix to get the kaffe interpreter working for MIPS was to fix
Kevin> the calling convention stuff. Argument passing in MIPS *is*
Kevin> pretty baroque, and worse, there are variants that we'll have
Kevin> to deal with when we try to support 64-bit MIPS/Linux with
Kevin> kaffe. Do you have decent documentation on the MIPS ABI? I've
Kevin> probably got some ancient documents in electronic format around
Kevin> here somewhere. If you've got Dom Sweetman's "See MIPS Run"
Kevin> (recommended reading for MIPS hackers everywhere), it's covered
Kevin> pretty well in chapter 10.
Yeah, some documentation might help ;)
I think what's happening is a push_int (or reference, or something) is
being called, which causes push_float (when we get to that point for
calling soft_fcmpl) to push its arguments into registers i5 and i6
because `pushed_int' has been set to `true', but soft_fcmpl expects
them in f12 and f14.
So either (1) the call to push_int preceding this is bogus, or (2)
that call needs to be followed by a popargs, but isn't.
Casey Marshall || rsdio at metastatic.org
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