+ allow declaring near and far procvars in all i8086 memory models. Only simple

  procvars can be declared near or far. Methodpointers/nested proc vars, etc
  must still follow the default calling model of the current memory model. Note
  that this feature isn't TP7 compatible (TP7 doesn't allow near procvars at
  all), but is common to 16-bit C compilers and is quite useful for calling
  external code (e.g. for far calling BIOS or some other real mode API entry
  points from any memory model, etc.)

git-svn-id: trunk@38595 -

compiler/i8086/symcpu.pas

@@ -110,6 +110,10 @@ type
 
   tcpuprocvardef = class(ti86procvardef)
     constructor create(level:byte);override;
+    function address_type:tdef;override;
+    function size:asizeint;override;
+    procedure declared_far;override;
+    procedure declared_near;override;
     function is_far:boolean;
   end;
   tcpuprocvardefclass = class of tcpuprocvardef;
@@ -389,16 +393,65 @@ implementation
   constructor tcpuprocvardef.create(level: byte);
     begin
       inherited create(level);
-      { procvars are always far in the far code memory models }
       if current_settings.x86memorymodel in x86_far_code_models then
         procoptions:=procoptions+[po_far];
     end;
 
 
+  function tcpuprocvardef.address_type:tdef;
+    begin
+      if is_addressonly then
+        if is_far then
+          result:=voidfarpointertype
+        else
+          begin
+            { near }
+            if current_settings.x86memorymodel=mm_tiny then
+              result:=voidnearpointertype
+            else
+              result:=voidnearcspointertype;
+          end
+      else
+        result:=inherited;
+    end;
+
+
+  function tcpuprocvardef.size:asizeint;
+    begin
+      if is_addressonly then
+        if is_far then
+          result:=4
+        else
+          result:=2
+      else
+        result:=inherited;
+    end;
+
+
+  procedure tcpuprocvardef.declared_far;
+    begin
+      if is_addressonly then
+        include(procoptions,po_far)
+      else
+        inherited;
+    end;
+
+
+  procedure tcpuprocvardef.declared_near;
+    begin
+      if is_addressonly then
+        exclude(procoptions,po_far)
+      else
+        inherited;
+    end;
+
+
   function tcpuprocvardef.is_far: boolean;
     begin
-      { procvars are always far in the far code memory models }
-      result:=current_settings.x86memorymodel in x86_far_code_models;
+      if is_addressonly then
+        result:=po_far in procoptions
+      else
+        result:=current_settings.x86memorymodel in x86_far_code_models;
     end;
 
 {****************************************************************************