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* updated processor limit section

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* added CPUM68020 define
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carl 2002-09-21 14:37:56 +00:00
parent b77f751161
commit d580d60f81
1 changed files with 15 additions and 8 deletions
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docs/prog.tex
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@ -150,7 +150,7 @@ This has as a consequence that any additional actions that are done by
\subsection{\var{\$C} or \var{\$ASSERTIONS} : Assertion support}
The \var{\{\$ASSERTION\}} switch determines if assert statements are
The \var{\{\$ASSERTIONS\}} switch determines if assert statements are
compiled into the binary or not. If the switch is on, the statement
\begin{verbatim}
Assert(BooleanExpression,AssertMessage);
@ -2780,18 +2780,24 @@ as passing a byte value parameter to the stack).
\subsection{Processor limitations}
\section{Processor limitations}
Certain processors have limitations on the size of the parameters
which can be passed to routine. This is shown in \seet{CPUStackLimits}.
and local variables in routines. This is shown in \seet{CPULimits}.
\begin{FPCltable}{ll}{Maximum parameter sizes for processors}{CPUStackLimits}
\begin{FPCltable}{lll}{Maximum limits for processors}{CPULimits}
\hline
Processor & Limit (in Bytes) \\ \hline
Intel 80x86 & 64K \\
Motorola 680x0 & 32K \\ \hline
Processor & Parameters & Local variables \\ \hline
Intel 80x86 (all) & 64K & No limit\\
Motorola 68020 (default) & 32K & No limit\\
Motorola 68000 & 32K & 32K \\ \hline
\end{FPCltable}
Furthermore, the m68k compiler, in \var{68000} mode, limits the
size of data elements to 32K (arrays, records, objects, etc.).
This restriction does not exist in \var{68020} mode.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Local variables
%\section{Local variables}
@ -6763,8 +6769,9 @@ starting from \fpc version 1.0.5.
Define & When defined? \\ \hline
CPU86 & \fpc target is an Intel 80x86 or compatible.\\
CPU87 & \fpc target is an Intel 80x86 or compatible.\\
CPUI386 & \fpc target is an Intel 80x86 or compatible.\\
CPUI386 & \fpc target is an Intel 80386 or later.\\
CPU68k & \fpc target is a Motorola 680x0 or compatible.\\
CPUM68020 & \fpc target is a Motorola 68020 or later.\\
CPU68 & \fpc target is a Motorola 680x0 or compatible.\\
CPUSPARC & \fpc target is a SPARC v7 or compatible.\\
CPUALPHA & \fpc target is an Alpha AXP or compatible.\\