%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
    
    
    ! 
    !  CONDITION HANDLING ARGUMENT LIST OFFSETS
    !  THERE ARE THREE CONDITIONAL HANDLING STRUCTURES: THE PRIMARY ARGUMENT
    !  LIST, AND THE SIGNAL AND MECHANISM ARRAYS. ALL ARE IDENTIFIED BY THE SAME
    !  BLOCK PREFIX.
    ! 
      DECLARE LONG CONSTANT CHF$S_CHFDEF = 12
      record CHFDEF
         LONG CHFDEF$$_FILL_1               ! PRIMARY ARGUMENT COUNT 
         LONG CHF$L_SIGARGLST               ! ADDRESS OF SIGNAL ARGUMENTS 
         LONG CHF$L_MCHARGLST               ! ADDRESS OF MECHANISM ARGUMENTS
      end record CHFDEF
    
      DECLARE LONG CONSTANT CHF$S_CHFDEF1 = 12
      record CHFDEF1
         group CHF$R_SIG_ARGS_DESC
            variant
               case
                  LONG CHF$IS_SIG_ARGS      ! NUMBER OF SIGNAL ARGUMENTS
               case
                  LONG CHF$L_SIG_ARGS       ! NUMBER OF SIGNAL ARGUMENTS 
            end variant
         end group CHF$R_SIG_ARGS_DESC
         group CHF$R_SIG_NAME_DESC
            variant
               case
                  LONG CHF$IS_SIG_NAME      ! SIGNAL NAME
               case
                  LONG CHF$L_SIG_NAME       ! SIGNAL NAME 
            end variant
         end group CHF$R_SIG_NAME_DESC
         group CHF$R_SIG_ARG1_DESC
            variant
               case
                  LONG CHF$IS_SIG_ARG1      ! FIRST SIGNAL SPECIFIC ARGUMENT
               case
                  LONG CHF$L_SIG_ARG1       ! FIRST SIGNAL SPECIFIC ARGUMENT 
            end variant
         end group CHF$R_SIG_ARG1_DESC
      end record CHFDEF1
    
      DECLARE LONG CONSTANT CHF$S_CHFDEF2 = 20
      record CHFDEF2
         group CHF$R_MCH_ARGS_DESC
            variant
               case
                  LONG CHF$IS_MCH_ARGS      ! NUMBER OF MECHANISM ARGUMENTS 
               case
                  LONG CHF$L_MCH_ARGS       ! NUMBER OF MECHANISM ARGUMENTS 
            end variant
         end group CHF$R_MCH_ARGS_DESC
         group CHF$R_MCH_FRAME_DESC
            variant
               case
                  LONG CHF$PH_MCH_FRAME     ! ESTABLISHER FRAME ADDRESS 
               case
                  LONG CHF$L_MCH_FRAME      ! ESTABLISHER FRAME ADDRESS 
            end variant
         end group CHF$R_MCH_FRAME_DESC
         group CHF$R_MCH_DEPTH_DESC
            variant
               case
                  LONG CHF$IS_MCH_DEPTH     ! FRAME DEPTH OF ESTABLISHER 
               case
                  LONG CHF$L_MCH_DEPTH      ! FRAME DEPTH OF ESTABLISHER 
            end variant
         end group CHF$R_MCH_DEPTH_DESC
         group CHF$R_MCH_SAVR0_DESC
            variant
               case
                  LONG CHF$IH_MCH_SAVR0     ! SAVED REGISTER R0 
               case
                  LONG CHF$L_MCH_SAVR0      ! SAVED REGISTER R0 
            end variant
         end group CHF$R_MCH_SAVR0_DESC
         group CHF$R_MCH_SAVR1_DESC
            variant
               case
                  LONG CHF$IH_MCH_SAVR1     ! SAVED REGISTER R1 
               case
                  LONG CHF$L_MCH_SAVR1      ! SAVED REGISTER R1 
            end variant
         end group CHF$R_MCH_SAVR1_DESC
      end record CHFDEF2