On 26 jan 2007, at 12:51, Carlo Kok wrote:
* FPC has changed default calling convention once (or twice?)
Once afaaik.
* The way "register" works on FPC is slightly different from
delphi, in delphi special types like interfaces, strings and
variant results are passed as var parameters, it seems the easiest
fix would be for me to change PascalScript to process results
differently for FreePascal.
How does FPC pass a string/variant/interface result actually?
Returned in AEX?
Strings: yes. Interfaces results are handled in a Delphi-compatible
way since 12/04/2006 (i.e. that's also done that way by 2.0.4).
Variant results have always been passed as var parameters afaik (at
least 2.0.4 does it).
Once I know this, I should be able to add an FPCFIX define for
this. (So it can be easily undone when FPC supports the same
"Register" mode as Delphi does)
The main incompatibility is currently still that stack parameters are
pushed in reverse order compared to what Delphi does for register
calling convention. But that will probably be changed before FPC 2.2
comes out.
Jonas
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