***************************************************************
*                                                             *
*	Module ID: HEXADD.LIB    	 By: GLH/W6BSK        *
*	                           Last Updated: 28 Apr 85    *
*       Function : Add and display     Version : 1.00         *
*		two hex numbers from                          *
*	      	  command line.                               *
*	                                                      *
*                                                             *
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hexadd:   call li6hex    ; Load a number
          jc   hexerr    ; from console and test.
          call ccrlf
          call co6bhd    ; Show in various formats
          xchg           ; Move to DE
          call bi6hex    ; load another number
          jc   hexerr    ; and verify-
          call ccrlf
          call co6bhd
          dad  d         ; add the two and
          call twocr     ; display the total.
          call co6bhd
          call ccrlf
          jmp  done      ; quit.

hexerr:   call twocr
          call spmsg
          db   'Input format error...',0
          call ccrlf
          jmp done