1.0.0 - graduate from beta; improve speed of PRIM by 2.4X; improve TVM for small I%/YR

• 1.0.0 (2024-07-19)
  • RPN83P is now out of beta!
  • Documentation
    • add "Troubleshooting" section to USER_GUIDE.md
  • User Interface
    • CLEAR button clears only to the end of the line if the cursor is in
      the interior of the input buffer
      • if the cursor is at the beginning or the end of the input buffer,
        the entire buffer is cleared
      • identical to the CLEAR button on the TI-89/92+/Voyage 200
      • similar to 2ND CLEAR on HP-50g in Algebraic mode (but not in RPN
        mode)
  • Variables
    • print 'Err: Archived' error message if STO or RCL acts on
      a variable (A-Z,Theta) that is archived
  • TVM
    • Change the criteria for using the small-i approximation to the
      following: N*i <~ 6e-5.
  • Improve performance of PRIM by 2.4X
    • convert modOP1ByBC() to use the IX register instead of the stack
      (SP): 43-67% faster
    • use DEIX instead of HLIX: ~12% faster
    • process using in 8-bit chunks instead of 1-bit: ~18% faster
    • use A register instead of D register for chunks: ~5% faster
    • use nonrestoring division algorithm: ~11% faster
    • unroll the 8-bit division loop 8 times: ~11% faster
    • thanks go to the responders of this Cemetech
      thread for
      improving the modHLIXByBC() algorithm
  • MODE
    • set Trig, Floating Display, and Display Digits settings to a known
      state if the restoration of RPN83SAV fails, instead of inheriting the
      modes from the TI-OS
      • trig mode: RAD
      • floating display: FIX
      • display digits: floating
  • CLR folder
    • add CLD (clear display) menu item
      • clear the display and re-render everything
      • should almost never be needed, except during debugging
      • analogous to the CLD command on the HP-42S
  • UNIT
    • car fuel consumption
      • add >Lkm: convert mpg (miles per US gallon) to L/100km (liters
        per 100 km)
      • add >mpg: convert L/100km to mpg
    • car tire pressure
      • add >kPa: convert psi (pounds per square inch) to kPa
        (kiloPascal)
      • add >psi: convert kPa to psi
    • land area
      • add >ha: convert acre to hectare
      • add >acr: convert hectare to acre