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* updated processor limit section
* added CPUM68020 define

carl 23 years ago
parent
commit
d580d60f81
1 changed files with 15 additions and 8 deletions
  1. 15 8
      docs/prog.tex

+ 15 - 8
docs/prog.tex

@@ -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}
 \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
 compiled into the binary or not. If the switch is on, the statement
 \begin{verbatim}
 \begin{verbatim}
 Assert(BooleanExpression,AssertMessage);
 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
 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
 \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}
 \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
 % Local variables
 %\section{Local variables}
 %\section{Local variables}
@@ -6763,8 +6769,9 @@ starting from \fpc version 1.0.5.
 Define & When defined? \\ \hline
 Define & When defined? \\ \hline
 CPU86 & \fpc target is an Intel 80x86 or compatible.\\
 CPU86 & \fpc target is an Intel 80x86 or compatible.\\
 CPU87 & \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.\\
 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.\\
 CPU68 & \fpc target is a Motorola 680x0 or compatible.\\
 CPUSPARC & \fpc target is a SPARC v7 or compatible.\\
 CPUSPARC & \fpc target is a SPARC v7 or compatible.\\
 CPUALPHA & \fpc target is an Alpha AXP or compatible.\\
 CPUALPHA & \fpc target is an Alpha AXP or compatible.\\