DB48X on DM42

Description:Intends to rebuild and improve the user experience of the HP 48 family of calculators, notably their "Reverse Polish Lisp" (RPL) language with its rich set of data types and built-in functions, and Lisp-level programming power, all running on the SwissMicros DM42 calculator. Under continuous development; the latest version can be found here.
Filename:db48x-v0.9.20.tgz
ID:9562
Current version:0.9.20
Author:Christophe Dupont de Dinechin: https://github.com/c3d
Downloaded file size:944,847 bytes
Platforms:Other  
User rating:10/10 with 1 vote (you must be logged in to vote)
Primary category:PC
Languages:ENG  
File date:2026-06-08 19:44:52
Creation date:2026-06-08
Source code:Not included
Download count:1,003
Related files:DB48X/DB50X on DM42/DM32 Source Code
Version history:2026-08-06: Updated to version 0.9.20
2025-12-30: Updated to version 0.9.15
2025-09-21: Updated to version 0.9.11
2025-02-17: Updated to version 0.9.0
2025-01-26: Updated to version 0.8.10
2024-12-29: Updated to version 0.8.9
2024-09-03: Updated to version 0.7.16
2024-06-02: Updated to version 0.7.7
2023-12-09: Updated to version 0.5.1
2023-10-29: Updated to version 0.4.8
2023-09-30: Added to site
Archive contents:
-rw-r--r-- ddd/staff    631148 2026-06-08 19:38 ./db48x.pgm
-rwxr-xr-x ddd/staff    437884 2026-06-08 19:38 ./db48x_qspi.bin
-rw-r--r-- ddd/staff        65 2026-02-28 16:12 keymap.bin
-rw-r--r-- ddd/staff    786344 2026-06-08 19:24 help/db48x.md
-rw-r--r-- ddd/staff     99598 2026-06-08 19:24 help/db48x.idx
-rw-r--r-- ddd/staff      5342 2026-05-25 16:51 help/shifts.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/1-arithmetic-rpl.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/10-complex.bmp
-rw-r--r-- ddd/staff      2918 2026-05-25 16:51 help/img/1DElastiCollisions.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/2-arithmetic-cmd.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/3-fractions.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/4-basic-math.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/5-mixing-rpl-alg.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/6-trigonometrics.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/7-display-modes.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/8-help.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/9-angles.bmp
-rw-r--r-- ddd/staff     10462 2026-05-25 16:51 help/img/B_Field_From_Finite_Wire.bmp
-rw-r--r-- ddd/staff     12022 2026-05-25 16:51 help/img/B_Field_In_Finite_Solenoid.bmp
-rw-r--r-- ddd/staff      2722 2026-05-25 16:51 help/img/BernouilliEquation.bmp
-rw-r--r-- ddd/staff      2554 2026-05-25 16:51 help/img/BipolarTransistor.bmp
-rw-r--r-- ddd/staff      3086 2026-05-25 16:51 help/img/BlackBodyRadiation.bmp
-rw-r--r-- ddd/staff      1598 2026-05-25 16:51 help/img/BrewstersLaw.bmp
-rw-r--r-- ddd/staff     11582 2026-05-25 16:51 help/img/CantileverDeflection.bmp
-rw-r--r-- ddd/staff      2122 2026-05-25 16:51 help/img/CantileverMoment.bmp
-rw-r--r-- ddd/staff      2202 2026-05-25 16:51 help/img/CantileverShear.bmp
-rw-r--r-- ddd/staff      2162 2026-05-25 16:51 help/img/CantileverSlope.bmp
-rw-r--r-- ddd/staff      2062 2026-05-25 16:51 help/img/Circle.bmp
-rw-r--r-- ddd/staff      2182 2026-05-25 16:51 help/img/CircularRing.bmp
-rw-r--r-- ddd/staff     10982 2026-05-25 16:51 help/img/Compton_Scattering_BW.bmp
-rw-r--r-- ddd/staff      2054 2026-05-25 16:51 help/img/Conduction+Convection.bmp
-rw-r--r-- ddd/staff      1374 2026-05-25 16:51 help/img/Conduction.bmp
-rw-r--r-- ddd/staff      2534 2026-05-25 16:51 help/img/Cone.bmp
-rw-r--r-- ddd/staff      1662 2026-05-25 16:51 help/img/ConicalPendulum.bmp
-rw-r--r-- ddd/staff      1082 2026-05-25 16:51 help/img/Convection.bmp
-rw-r--r-- ddd/staff      2526 2026-05-25 16:51 help/img/CriticalAngle.bmp
-rw-r--r-- ddd/staff      1802 2026-05-25 16:51 help/img/CurrentDivider.bmp
-rw-r--r-- ddd/staff      2702 2026-05-25 16:51 help/img/Cylinder.bmp
-rw-r--r-- ddd/staff      2198 2026-05-25 16:51 help/img/CylindricalCapacitor.bmp
-rw-r--r-- ddd/staff     12438 2026-05-25 16:51 help/img/Driven Damped Oscillations.bmp
-rw-r--r-- ddd/staff     12022 2026-05-25 16:51 help/img/E_Field_Finite_Line.bmp
-rw-r--r-- ddd/staff      1406 2026-05-25 16:51 help/img/EccentricColumns.bmp
-rw-r--r-- ddd/staff      3310 2026-05-25 16:51 help/img/ElasticBuckling.bmp
-rw-r--r-- ddd/staff      2678 2026-05-25 16:51 help/img/Ellipse.bmp
-rw-r--r-- ddd/staff      2606 2026-05-25 16:51 help/img/FlowInFullPipes.bmp
-rw-r--r-- ddd/staff      2390 2026-05-25 16:51 help/img/FlowWIthLosses.bmp
-rw-r--r-- ddd/staff      1942 2026-05-25 16:51 help/img/ForceBetweenWires.bmp
-rw-r--r-- ddd/staff      1322 2026-05-25 16:51 help/img/HookesLaw.bmp
-rw-r--r-- ddd/staff      1838 2026-05-25 16:51 help/img/IsentropicFlow.bmp
-rw-r--r-- ddd/staff      2974 2026-05-25 16:51 help/img/JFETs.bmp
-rw-r--r-- ddd/staff      1702 2026-05-25 16:51 help/img/LawOfRefraction.bmp
-rw-r--r-- ddd/staff      2554 2026-05-25 16:51 help/img/MagneticFieldInSolenoid.bmp
-rw-r--r-- ddd/staff      2162 2026-05-25 16:51 help/img/MagneticFieldInToroid.bmp
-rw-r--r-- ddd/staff      1342 2026-05-25 16:51 help/img/MassSpringSystem.bmp
-rw-r--r-- ddd/staff      3614 2026-05-25 16:51 help/img/MohrsCircle.bmp
-rw-r--r-- ddd/staff      2042 2026-05-25 16:51 help/img/NMOSTransistor.bmp
-rw-r--r-- ddd/staff      2582 2026-05-25 16:51 help/img/NewtonGravitation.bmp
-rw-r--r-- ddd/staff      1694 2026-05-25 16:51 help/img/NormalStress.bmp
-rw-r--r-- ddd/staff      2722 2026-05-25 16:51 help/img/PNStepJunction.bmp
-rw-r--r-- ddd/staff      3114 2026-05-25 16:51 help/img/Parallelepiped.bmp
-rw-r--r-- ddd/staff     10622 2026-05-25 16:51 help/img/Planck_and_Rayleigh-Jeans_Distributions.bmp
-rw-r--r-- ddd/staff     10622 2026-05-25 16:51 help/img/Planck_and_Wien_Distributions.bmp
-rw-r--r-- ddd/staff      1962 2026-05-25 16:51 help/img/PlateCapacitor.bmp
-rw-r--r-- ddd/staff      2182 2026-05-25 16:51 help/img/PressureAtDepth.bmp
-rw-r--r-- ddd/staff      2750 2026-05-25 16:51 help/img/ProjectileMotion.bmp
-rw-r--r-- ddd/staff      2526 2026-05-25 16:51 help/img/RCTransient.bmp
-rw-r--r-- ddd/staff      2442 2026-05-25 16:51 help/img/RLCCurrentDelay.bmp
-rw-r--r-- ddd/staff      2150 2026-05-25 16:51 help/img/RLTransient.bmp
-rw-r--r-- ddd/staff      1678 2026-05-25 16:51 help/img/Rectangle.bmp
-rw-r--r-- ddd/staff      2202 2026-05-25 16:51 help/img/RegularPolygon.bmp
-rw-r--r-- ddd/staff      3422 2026-05-25 16:51 help/img/SeriesAndParallelC.bmp
-rw-r--r-- ddd/staff      3230 2026-05-25 16:51 help/img/SeriesAndParallelL.bmp
-rw-r--r-- ddd/staff      3262 2026-05-25 16:51 help/img/SeriesAndParallelR.bmp
-rw-r--r-- ddd/staff      1482 2026-05-25 16:51 help/img/ShearStress.bmp
-rw-r--r-- ddd/staff      2242 2026-05-25 16:51 help/img/SimpleDeflection.bmp
-rw-r--r-- ddd/staff      2262 2026-05-25 16:51 help/img/SimpleMoment.bmp
-rw-r--r-- ddd/staff      1142 2026-05-25 16:51 help/img/SimplePendulum.bmp
-rw-r--r-- ddd/staff      2202 2026-05-25 16:51 help/img/SimpleShear.bmp
-rw-r--r-- ddd/staff      2282 2026-05-25 16:51 help/img/SimpleSlope.bmp
-rw-r--r-- ddd/staff      2366 2026-05-25 16:51 help/img/SolenoidInductance.bmp
-rw-r--r-- ddd/staff      1982 2026-05-25 16:51 help/img/Sphere.bmp
-rw-r--r-- ddd/staff      3142 2026-05-25 16:51 help/img/SphericalReflection.bmp
-rw-r--r-- ddd/staff      3002 2026-05-25 16:51 help/img/SphericalRefraction.bmp
-rw-r--r-- ddd/staff      1566 2026-05-25 16:51 help/img/StraightWire.bmp
-rw-r--r-- ddd/staff      3358 2026-05-25 16:51 help/img/StressOnAnElement.bmp
-rw-r--r-- ddd/staff      1038 2026-05-25 16:51 help/img/ThermalExpansion.bmp
-rw-r--r-- ddd/staff      3518 2026-05-25 16:51 help/img/ThinLens.bmp
-rw-r--r-- ddd/staff      2750 2026-05-25 16:51 help/img/ToroidInductance.bmp
-rw-r--r-- ddd/staff      1214 2026-05-25 16:51 help/img/TorsionalPendulum.bmp
-rw-r--r-- ddd/staff      2414 2026-05-25 16:51 help/img/Triangle.bmp
-rw-r--r-- ddd/staff      1982 2026-05-25 16:51 help/img/VoltageDivider.bmp
-rw-r--r-- ddd/staff      9086 2026-05-25 16:51 help/img/bat-and-jet.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/command-line-and-catalog.bmp
-rw-r--r-- ddd/staff      2102 2026-05-25 16:51 help/img/definition_of_e.bmp
-rw-r--r-- ddd/staff      7742 2026-05-25 16:51 help/img/definition_of_pi.bmp
-rw-r--r-- ddd/staff      7742 2026-05-25 16:51 help/img/imaginary_unit.bmp
-rw-r--r-- ddd/staff     11398 2026-05-25 16:51 help/img/stack-and-menus.bmp
-rw-r--r-- ddd/staff     21963 2026-06-03 07:55 state/Demo.48S
-rw-r--r-- ddd/staff        51 2026-05-25 16:51 config/characters.csv
-rw-r--r-- ddd/staff       141 2026-05-25 16:51 config/constants.csv
-rw-r--r-- ddd/staff       134 2026-05-25 16:51 config/equations.csv
-rw-r--r-- ddd/staff      1206 2026-05-25 16:51 config/library.csv
-rw-r--r-- ddd/staff       450 2026-05-25 16:51 config/units.csv
-rw-r--r-- ddd/staff      2742 2026-05-25 16:51 config/42style.48k
-rw-r--r-- ddd/staff      4807 2026-05-25 16:51 config/db48x.48k
-rw-r--r-- ddd/staff      2742 2026-05-25 16:51 config/legacy.48k
-rw-r--r-- ddd/staff      2734 2026-05-25 16:51 config/true42.48k
-rw-r--r-- ddd/staff        17 2026-05-25 16:51 config/keymap.cfg
-rw-r--r-- ddd/staff        57 2026-05-25 16:51 library/Beeps.48s
-rw-r--r-- ddd/staff       448 2026-05-25 16:51 library/CollatzBenchmark.48s
-rw-r--r-- ddd/staff       595 2026-05-25 16:51 library/CollatzConjecture.48s
-rw-r--r-- ddd/staff       667 2026-05-25 16:51 library/CountPrimes.48s
-rw-r--r-- ddd/staff       747 2026-05-25 16:51 library/CurvePlottingExamples.48s
-rw-r--r-- ddd/staff       739 2026-05-25 16:51 library/DrawingLines.48s
-rw-r--r-- ddd/staff       807 2026-05-25 16:51 library/DrawingPatterns.48s
-rw-r--r-- ddd/staff      1499 2026-05-25 16:51 library/DrawingShapes.48s
-rw-r--r-- ddd/staff      2719 2026-05-25 16:51 library/DrawingText.48s
-rw-r--r-- ddd/staff       246 2026-05-25 16:51 library/InteractiveMenu.48s
-rw-r--r-- ddd/staff       920 2026-05-25 16:51 library/KineticEnergy.48s
-rw-r--r-- ddd/staff       469 2026-05-25 16:51 library/NQueens.48s
-rw-r--r-- ddd/staff        65 2026-05-25 16:51 library/RandomPlot.48s
-rw-r--r-- ddd/staff        78 2026-05-25 16:51 library/RandomXYPlot.48s
-rw-r--r-- ddd/staff       145 2026-05-25 16:51 library/Recursion.48s
-rw-r--r-- ddd/staff       284 2026-05-25 16:51 library/RombergPlot.48s
-rw-r--r-- ddd/staff       141 2026-05-25 16:51 library/SumTestWithFunction.48s
-rw-r--r-- ddd/staff       157 2026-05-25 16:51 library/SumTestWithLoop.48s
-rw-r--r-- ddd/staff       554 2026-05-25 16:51 library/TriangleEquations.48s
-rw-r--r-- ddd/staff        75 2026-05-25 16:51 library/UnitsBenchmark.48s
-rw-r--r-- ddd/staff       462 2026-05-25 16:51 library/WalkMan.48s
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Copyright 1997-2026 Eric Rechlin.