m68k: first bit of a Human68k RTL - a very dummy startup code

rtl/human68k/si_prc.pp

@@ -0,0 +1,43 @@
+{
+    This file is part of the Free Pascal run time library.
+    Copyright (c) 2016 by the Free Pascal development team
+
+    System Entry point for Human 68k (Sharp X68000)
+
+    See the file COPYING.FPC, included in this distribution,
+    for details about the copyright.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+ **********************************************************************}
+
+unit si_prc;
+
+interface
+
+implementation
+
+var
+  stacktop: pointer; public name '__stktop';
+  stklen: longint; external name '__stklen';
+
+
+procedure PascalMain; external name 'PASCALMAIN';
+
+
+{ this function must be the first in this unit which contains code }
+{$OPTIMIZATION OFF}
+procedure _FPC_proc_start; cdecl; public name '_start';
+begin
+  PASCALMAIN;
+end;
+
+procedure _FPC_proc_halt(_ExitCode: longint); cdecl; assembler public name '_haltproc';
+asm
+  dc.w $ff00  { _EXIT }
+end;
+
+
+end.