 Operating tools offering menu, library, hiding, programming and compressing tools, allows recalling menus, rompointers, flashpointers, key assignments, to toggle fonts, flags, decompiling/recompiling, etc. The BZ-toggler creates its own powerful menu for handling BZ-strings. With it you may create very small self-decompressing code objects, for instance. The library manager D<->L from OT49 now allows adding HELP options to library commands to be shown in CAT, Libman or elsewhere. OT49 contains the first library tool customizing the creation of HELP options for library commands in the framework of User RPL. Includes HTML documentation. |
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Fast 33*10 text viewer with the ability to display inline graphics. Includes ADISP Tools and both English and French documentation for both programs.
Allows you to graphically view your free memory, including RAM cards. Accepts merged RAM cards, and card sizes from 128k to 1Meg.
Smaller version of Arkanoid.
Roll a ball down a track and try not to let it fall off. Jump, accelerate, decelerate, go left or go right. This is a really fun game!
Roll a ball down a track and try not to let it fall off. Jump, accelerate, decelerate, go left or go right. This is a really fun game!
Fast assembly language database with searching, sorting, and more. Supports external editors. Requires 
An impressive combination of Tetris and Pipes with grayscale graphics and a mouse-style interface. For the G series only.
An impressive combination of Tetris and Pipes with grayscale graphics and a mouse-style interface.
BKUP, a complete backup program. Includes all older versions.
Boulder DasHP, a game where you are in a mine and must get the diamonds without being hit by boulders.
Boulder DasHP, a game where you are in a mine and must get the diamonds without being hit by boulders.
Menuline front end to 
ChemLab 2.7 is a graphical periodic table of elements with element symbols and a fast property browser with 22 properties. Also has a formula balancer and molecular weight calculator.
This library for preventing unauthorized entry into your 48G series calculator is based on the CODELOCK Library written by Scotty Thompson for the 48S series. The library will also set the flags to the user's preferences upon a system restart.
Side-scrolling game in which you must bounce an apple over rocks, picking up dots (seeds?) to receive points. Has excellent grayscale graphics.
Side-scrolling game in which you must bounce an apple over rocks, picking up dots (seeds?) to receive points. Has excellent grayscale graphics.
Preview II of a forthcoming grayscale implementation of Doom with two monsters, four weapons, and a large level.
Newer version of 
Clone of the Nintendo Tetris-like game Dr. Mario. In grayscale with sound.
Like the computer game Dune 2. This is a war game.
Like the computer game Dune 2. Compressed with 
A really good Editor/Viewer with many features, including an hypertext-like navigation possibility, handling both 6 and 8 pixels high fonts, etc.
Views and edits symbolic matrices in pretty print. In the screen appears the current element, the size of the matrix, the current position and a mini grob that is the matrix (each element is represented by a point and the current position is highlighted). Also allows one to add and delete rows and columns and create symmetric matrices.
Editor and development support on the HP 49G. With keyboard macros, incremental search, regular expressions, bookmarks and a macro language. Supports completion (RPLCPL) of command names (User RPL/System RPL/assembly) and variable names. Online display of thousands of stack diagrams. Decompilation of ROM entries directly from the editor. Includes the SDIAG library and Thomas Rast's extable2 library, a version of extable containing unsupported-but-stable entries as well.
EQSTK provides an alternative to the built-in stack displayer, with the main advantage of being capable of displaying equations in similar form as the built-in Equation Writer.
ExAL is an excellent spreadsheet program for both the G and the S series.
The premier structural analysis software for both the 48G and 49/50 series calculators. Its ease of use, flexibility, power and capabilities combined in one package are not seen in any other program available, either commercially or as freeware. FEM48/49 solves frames, trusses and continuous beams. Includes wizards for geometry, sections and loads. Links to SED48/49 database. An extensive manual is included. Completely written in SysRPL. SR6 has been adapted for the larger screen of the 49g+ and 50g.
This search utility accepts a string or a global name, searching HP 48 directories for matches.
Filer48 is a powerful memory browser that allows you to explore all the files inside your HP 48 including files stored in any port (0-32). It uses the 
GxTools v5.1 is a collection of useful tools to ease the use of your GX. Included in the library: configurable toolbar for programs in the GxTools and MathTools library, password protection with customizable opening screen, BZM menuline for BZ/UBZ compression utilities, and much more.
Good PacMan clone.
Good PacMan clone.
Good PacMan clone. Has lots of levels and sound, and will keep you entertained for hours.
The HLP49 v6.0 library provides over 600 detailed and expanded help entries for basic commands (RPN, non-CAS) and includes lots of tips and techniques, plus many programming and plotting examples. It runs on the 49g+ and 50g using the SD card, or the 49G or emulators using port 2. v6.0 is much larger than previous versions and has many more examples, particularly with plotting and operational modes. An appendix cross-references the examples and programs with entries. v6.0 also includes a fully indexed and linked PDF version of HLP49 that will run on any computer.
An excellent alternate 5-line stack environment based on Java. Requires 
You are an ice cube and must explore islands to pick stuff up. Grayscale!
You are an ice cube and must explore islands to pick stuff up. Grayscale!
You are an ice cube and must explore islands to pick stuff up. In grayscale!
The ultimate five-line stack replacement program. Much faster than the built-in stack, and can display algebraics with "pretty-print". This also has fast replacements for many built-in functions, such as the library menu, the OFF key (to speed up power-on), the review key, the softkey menus, and far too much else to list here. All I can say is get it! Requires 
System RPL and Machine Language Development Library. Contains an ML assembler and disassembler, a System RPL compiler/decompiler, a debugger for both, an entries table browser, a text editor, and much more.
A small but powerful key manager for the 49 and 49+. Allows mode-sensitive assignments and supports shift-hold, long-hold and double-clicked keys. With Keyman, dozens of professional key assignments can be made without conflict with standard operations of keys. The 49G+ version supports accessing the SD card directly. You may also switch different keymaps, for physics, engineering etc. HTML documentation in several languages.
Lemmings clone: save the lemmings from killing themselves. Includes a level pack with 10 extra levels.
Lemmings clone: save the lemmings from killing themselves. Now includes Spanish translation.
Lemmings clone: save the lemmings from killing themselves.
A comfortable tool for managing the LIB menu on the LIB key which cannot be rearranged with the Filer. With about 20 libs the LIB key becomes intolerably slow. Libman sets up a full-screen browser for all attached libs with a rich menu for customization of the LIB menu and other manipulation with libs. You can organize the LIB menu in pages, a separate page for game libs, for port entries etc. Libs not needed directly may temporarily "sleep" (they remain active). In a satellite command browser HELP on a lib command may be consulted exactly as in the CAT browser. On the 49G+, this also provides an easy means of accessing files on the SD card. Contains HTML documentation.
Multiple precision real and complex library including trig and hyperbolic functions. Interval arithmetic (precision tracking) for real functions. Algebraics with interval numbers or units may be automatically evaluated to user-defined precision. Now has basic matrix functions and 49g+/50g support.
Grayscale Mario Brothers game. If you have a GX with 50k free (and 70k to run), you must check this out!
Math is a math library for dealing with numeric/symbolic polynomials and matrices with many capabilities.
MathTools is a collection of tools to speed up and ease many mathematical functions of the GX, as well as including its own. Includes plotter replacement, front end for SOLVR, MatrixWriter replacement, EquationWriter replacement, table of values, and much more.
MATRIX is a fast matrix writer replacement.
Completely replaces the HP 48 shell with a faster, better, more user-friendly version. Takes an entire 128k RAM card in port 1. Has a new filer, equation writer, matrix writer, editor, and stack, as well as many new features, such as a paint program (by Etienne de Foras) and an assembly language and System RPL development tool. 
Music Interpreter for the G series which plays polyphonic music. The author encourages any user-made songs to be sent to him.
Just like Minesweeper for Windows. In grayscale, yet it's only 1.2k.
Very small 33x10 text editor. Can be used as an alternative to StringWriter.
When given any convertable unit, MUC will return a full screen selection of all possible conversions to choose from.
Nosy allows you to interactively see into the ROM. It allows to quickly "surf" through a routine and peeks into flash pages. Now supports the G+, and has a new function that searches the entire ROM for routines calling a given routine.
Pretty cool grayscale sidescrolling flying game. This is another must-see. Very similar to the original Omega game.
Organizer is the best calendar/PIM/address book for the HP 48.
Graphical file manager environment for the 48G. Fast and powerful.
"Shoot the aliens, before they shoot you" could be a short description of this game. This game is similar to Round 42 for the computer, but with only five levels.
"Shoot the aliens, before they shoot you" could be a short description of this game. This game is similar to Round 42 for the computer, but with only five levels.
A very fast and versatile plotter replacement. This plots graphs much quicker than the built-in plotter. Includes PDF documentation.
Emulates the HP-41CX, with 320 memory registers, full XMEM (except with ED), Helios printer support, and partial timer support. Written in Python, requiring a recent firmware update.
Outrun style racing game, with amazing graphics, just like the old Sega game.
An excellent replacement equation writer. A large equation that took 63 seconds to load in the built-in equation writer took less than 2 seconds to load in RainEQ. For the G series only; includes Java-enhanced version. Documentation by me, Eric Rechlin.
The best HP remote control program.
Scribe is a library which will function as a Database or Rolodex. Mostly written in System RPL, this software is very powerful, with support for compression and port memory.
A key assignment and custom menu toolkit. Very good software, including comprehensive documentation and both G and S versions.
As a "garbage collector," your task is to collect lost objects and push them onto free storage locations through a puzzle. This is a fun, 50-level game. Includes source code.
As a "garbage collector," your task is to collect lost objects and push them onto free storage locations through a puzzle. This is a fun, 50-level game.
Intended to replicate and combine programs from the HP 48 series of calculators for organizing equations and launching an equation solver. This app attempts to allow users to build their own equations library. The user can then also launch a numerical solver. This app implements the Newton-Raphson algorithm for solving a system of equations. In order to handle ill-conditioned, over-determined, under-determined, rank-deficient (etc.) Jacobian matrices, the SVD is used to determine the pseudo-inverse of the Jacobian (the pseudo-inverse coincides with the regular inverse of a matrix for non-singular matrices). Includes a copy of the equation library from the HP 48/49 series to get you started, including all the graphics. Also includes a more accurate version that requires 
Simultaneous Non-Linear Equations Solver: an easy-to-use environment for solving systems of nonlinear equations.
Powerful simultaneous nonlinear equation solver.
Much faster plotter replacement for graphing functions and parametric plots. For the G series only.
Clone of HP's periodic table of elements library, which was originally written for the 48 and ported to the 49 series. SpeedPT was rewritten from scratch to be faster than HP's library while taking less memory and maintaining all the same functionality. Works on both the 48 series (where it can be made even faster with the addition of SpeedUI) and the 49 series (for which it includes the missing 10-pixel font, which had been dropped from the 49 series). Version 9.05 adds SpeedUI QuickStartMenu support.
Replaces ALL HP 48G series built-in browsers, the input form engine, the MatrixWriter, and the stack user interface with highly accelerated replacements, like the super fast cmdline/fullscreen editor with interactive Command catalog and parameter help, and more. In version 11.0x, the user can choose between four stack display and editing font sizes. The QuickStartMenu has been enhanced. Support for five (instead of four) input form item lines has been added. But there's much more, like the graphical InputFormBuilder, and Master-Detail capabilities added to the CHOOSE engine, and global access to the MultiClipboard and cmd catalog. For the 48G series only. Please take a look at the SpeedUI walkthrough PDF first.
String Writer is a fast, complete text editor written almost completely in Saturn assembly language.
Surf version 3.1 is a fast System RPL 3D surface plotter for the HP 48 with hidden line removal. Surf is the fastest program of its type for the 48G and 48S series. Surf allows you to view your surface from any angle. Version 3.1 includes a trace mode which displays a crosshair on the graph along with (X,Y,Z) coordinates for the crosshair location.
TED is a limited version of the 
Multiplayer, grayscale Tetris clone, with two player mode via infrared, sounds, and many options for configuring the game behavior.
Allows setting setting date and time in a nice graphic environement with a running analog clock and a (month) calendar. The clock hands are moved with some keys as if you would move them on a real clock with your finger tips. Powerful calibration tools for the HP 49 clock are included as well. One can virtually browse through the calendar, in steps of a day, a week, a month or a year, even through the centuries. Thus, you see how the month calendar looks ten years from now, say, and make your plans. You can also easily set date and time after a battery collaps etc. There is also a world map with a moving noon meridian. Hence, so you'll know where it is noon at present. You can also set the 24 time-zone and in this way readily determine the local time of big towns in the whole world. Included are also fast alarm tools which allow setting repeat alarms of precisely one or several years, impossible with builtin tools. And you may play your own wake-up melody. Documentation in HTML.
Allows a complete customization of the UNITS system. One may add user-defined units to the unit categories. User units are treated like built-ins, i.e., the famous 3-fold functionality of a unit key applies to an integrated user-units as well. In addition, one may reorganize a units menu, i.e., reorder it or purge not needed units. The same can be done with the whole bundle of unit directories to which new ones may be added ad libitum. Now contains HTML documentation.
Structural analysis program for all types of beams, by introducing the conditions of support and load, resulting in reactions in the supports, the diagram of flectors, etc. For the G series only.
Structural analysis program for all types of beams.
An application for the calculation of continuous beams, it is possible to enter different configurations of loads and supports, as a result it presents the reactions, equations in each of the ranges, the shear diagram, the moment diagram, the angle diagram, the deflection diagram and the maximum and minimum points of each diagram.
Grayscale side scrolling game like WarioLand (or MarioLand). Includes many levels and sound. Also includes a smaller "special edition" version.
Beta version of a very well designed Zelda clone, with excellent graphics and gameplay. Not yet complete, but close.
Beta version of a very well designed Zelda clone, with excellent graphics and gameplay. Not yet complete, but close.
Beta version of a very well designed Zelda clone, with excellent graphics and gameplay. Not yet complete, but close.