%IF %DECLARED ( %BASIC$QUADWORD_DECLARED ) = 0 %THEN
	RECORD BASIC$QUADWORD
		LONG FILL ( 2 )
	END RECORD
    %LET %BASIC$QUADWORD_DECLARED = 1
    %END %IF
    %IF %DECLARED ( %BASIC$OCTAWORD_DECLARED ) = 0 %THEN
	RECORD BASIC$OCTAWORD
		LONG FILL ( 4 )
	END RECORD
    %LET %BASIC$OCTAWORD_DECLARED = 1
    %END %IF
    %IF %DECLARED ( %BASIC$F_FLOATING_COMPLEX_DECL ) = 0 %THEN
    	RECORD BASIC$F_FLOATING_COMPLEX
    		SINGLE REAL_PART
    		SINGLE IMAGINARY_PART
    	END RECORD
    %LET %BASIC$F_FLOATING_COMPLEX_DECL = 1
    %END %IF
    %IF %DECLARED ( %BASIC$D_FLOATING_COMPLEX_DECL ) = 0 %THEN
    	RECORD BASIC$D_FLOATING_COMPLEX
    		DOUBLE REAL_PART
    		DOUBLE IMAGINARY_PART
    	END RECORD
    %LET %BASIC$D_FLOATING_COMPLEX_DECL = 1
    %END %IF
    %IF %DECLARED ( %BASIC$G_FLOATING_COMPLEX_DECL ) = 0 %THEN
    	RECORD BASIC$G_FLOATING_COMPLEX
    		GFLOAT REAL_PART
    		GFLOAT IMAGINARY_PART
    	END RECORD
    %LET %BASIC$G_FLOATING_COMPLEX_DECL = 1
    %END %IF
    %IF %DECLARED ( %BASIC$H_FLOATING_COMPLEX_DECL ) = 0 %THEN
    	RECORD BASIC$H_FLOATING_COMPLEX
    		HFLOAT REAL_PART
    		HFLOAT IMAGINARY_PART
    	END RECORD
    %LET %BASIC$H_FLOATING_COMPLEX_DECL = 1
    %END %IF
    
    
    ! +
    !  FDL CALL INTERFACE CONTROL FLAGS
    ! -
      DECLARE LONG CONSTANT FDL$M_SIGNAL = x'00000001'
      DECLARE LONG CONSTANT FDL$M_FDL_STRING = x'00000002'
      DECLARE LONG CONSTANT FDL$M_DEFAULT_STRING = x'00000004'
      DECLARE LONG CONSTANT FDL$M_FULL_OUTPUT = x'00000008'
      DECLARE LONG CONSTANT FDL$M_$CALLBACK = x'00000010'
      DECLARE LONG CONSTANT FDL$S_FDLDEF = 1
      record FDLDEF
         variant
            case
               group FDL$R_FDLDEF_BITS
                   !  SIGNAL ERRORS, DON'T RETURN
                   !  MAIN FDL SPEC IS A CHAR STRING
                   !  DEFAULT FDL SPEC IS A CHAR STRING
                   !  PRODUCE A 'COMPLETE' FDL SPEC
                   !  USED BY EDF ON INPUT (DEC ONLY)
                  BYTE SIGNAL_bits   ! COMMENT ADDED BY SDL - SIGNAL_bits contains bits SIGNAL through fill_0
               end group FDL$R_FDLDEF_BITS
         end variant
      end record FDLDEF