sasm: add INCBIN meta directive

pcomp/sasm.pas

@@ -2041,9 +2041,32 @@ begin
 		errorExit2('Unrecognized directive', lastToken.tokenText);
 end;
 
+procedure readImage(filename:string;size:integer);
+var f:InputFileType;
+    c:char;
+    i:integer;
+begin
+	pc := pc + size;
+	bytesCount := bytesCount + size;
+
+	if pass = 2 then
+	begin
+		openFileWithDefault(f, filename);
+
+		for i := 1 to size do
+		begin
+			read(f,c);
+			write(outfile,c);
+		end;
+
+		close(f);
+	end;
+end;
+
 procedure parseMetaDirective;
 var filename:string;
     sym:TreeDataRef;
+    size:integer;
 begin
 	readNextToken;
 	if lastToken.tokenText = '%INCLUDE' then
@@ -2071,6 +2094,14 @@ begin
 			errorExit2('Symbol expected', '');
 		readNextToken;
 	end
+	else
+	if lastToken.tokenText = '%INCBIN' then
+	begin
+		filename := curToken.tokenText;
+		readNextToken;
+		size := parseExpression;
+		readImage(filename, size);
+	end
 	else
 		errorExit2('Invalid meta directive', lastToken.tokenText);
 end;