HP 82104A Owner's Handbook Manual

14 Card Reader Operations3. Execute the (write private program) function (WPRV (acpra])). The HP-41C will prompt you withRDY kk OF nnwhere kk is the next track number and nn is the total number oftracks required to write the complete program to cards.4. Insert track 1 as shown. If theprogram is longer than 16registers, the HP-41C willprompt you for subsequenttracks with ADY kk OF nn,5. The entire program, includingprogram key reassignments, isnow written on the magneticcards and is made a privatecard.The private card may be read and executed any number of times, butcannot be viewed or altered. In addition, you cannot write an alreadyprivate program to a new card. Any attempt to view (e.g., (SsT], (BsT)),alter or record this program will result in the display of the PRIVATEmessage. The function is not programmable, that is, cannot bekeyed in as part of a program.Reading a Program From a CardOnce a program is written onto a card, it is a simple matter to read thatprogram back into the HP-41C’s program memory.Here is one procedure for reading programs from magnetic cards:1. Ensure that the HP-41C is not in PRGM mode.2. Press @B (] (=] This positions the HP-41C after the lastprogram in program memory. The program that is read in will beplaced after the last program in program memory. If you do notdo this step, the program you read in will replace the lastprogram in program memory.