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version 1.2, 2001/06/20 05:42:47

version 1.4, 2001/06/21 03:09:46

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% $OpenXM: OpenXM/doc/ascm2001p/openxm-stackmachines.tex,v 1.1 2001/06/19 07:32:58 noro Exp $

% $OpenXM: OpenXM/doc/ascm2001p/openxm-stackmachines.tex,v 1.3 2001/06/21 00:15:34 takayama Exp $

\section{OpenXM Stack machines}\label{sec:ox-stackmachines}

Line 25 and pushes the object onto the stack.

If the server gets an {\it OX command} message, then the server

executes the command.

Any OX command message starts with the int32 tag OX\_COMMAND.

Any OX command message starts with the int32 tag {\tt OX\_COMMAND}.

The body is a stack machine operation code expressed by int32.

%The codes are listed below \cite{ox-rfc-100}.

%\begin{verbatim}

Line 87 instead of a result of the computation.

%error([8,fctr : invalid argument])

%\end{verbatim}

OpenXM server won't send error messages to the client

OpenXM server does not send error messages to the client

except when it receives a {\tt SM\_pop*} command.

except when it receives a {\tt SM\_pop*} command,

which is a request to pop data from the stack and to write it to the client.

OX stack machines work in the asynchronous mode which is similar

to X servers.

%For servers of graphic and sound applications,