[Mingw-notify] [ mingw-Bugs-646004 ] __thiscall not supported

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Bugs item #646004, was opened at 2002-11-30 06:31
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=646004&group_id=2435

Category: gcc
>Group: component package
Status: Open
Resolution: None
Priority: 5
Submitted By: Krzysztof Foltman (kfoltman)
Assigned to: Danny Smith (dannysmith)
Summary: __thiscall not supported

Initial Comment:
__thiscall calling convention (used, for example, in
Buzz machine interface) is not implemented.

This calling convention is used automatically by VC++
for method calls when __fastcall is used as standard
calling convention. The difference between __thiscall
and __fastcall is that __fastcall passes two arguments
in registers (ECX and EDX, IIRC) while __thiscall
passes only 'this' pointer in ECX, and the rest is
pushed on the stack. The lack of __thiscall can be
worked around by using __thiscall and adding a dummy
'int' argument in front of other arguments (which would
reserve EDX so that the next arguments are pushed on
stack) - but it would be nicer to have this built in.

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>Comment By: Earnie Boyd (earnie)
Date: 2003-01-04 12:15

Message:
Logged In: YES 
user_id=15438

Danny, do you have a comment for this?

Earnie.

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You can respond by visiting: 
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