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* bugfix of procedural types for methods

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+ saveregisters convention
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carl 2002-04-14 12:25:50 +00:00
parent 158f65b646
commit b0824370a0
1 changed files with 15 additions and 2 deletions
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17
docs/prog.tex
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@ -2571,6 +2571,15 @@ on an operating system basis can be found in Appendix \ref{ch:AppH}. The \var{re
modifier is currently not supported, and maps to the default calling
convention.
Furthermore, the \var{saveregisters} modifier can be used with
any of the calling mechanism specifiers. When \var{saveregisters}
is used, all registers will be saved on entry to the routine,
and will be restored upon exit. Of course, if the routine is
a function, and it normally returns its retun value in a register,
that register will not be saved. Also, if the self register is
used, it will also neither be saved nor restored.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Nested subroutines
\section{Nested procedure and functions}
@ -3741,8 +3750,12 @@ be used for special purposes by software developpers.
\subsection{procedural types}
A procedural type is stored as a generic pointer, which stores
the address of the routine.
A procedural type to a normal procedure or function is stored as a generic pointer,
which stores the address of the entry point of the routine.
In the case of a method procedural type, the storage consists of two pointers,
the first being a pointer to the entry point of the method, and the second
one being a pointer to \var{self} (the object instance).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% The alignment of data elements