Swissmicros DM41X FORTH Firmware with N-Queens, Graphics, Sound and Snake Game @CalculatorClique

Calculator Clique This video demonstrates a native FORTH implementation for the Swissmicros DM41X hardware. I’ve ported and enhanced a C implementation of FORTH and used the same keyboard layout as much as possible so an overlay is not required.

Enhancements include graphics, sound, file loading, keyboard shortcuts and assignment which are demonstrated.

To exit DM-FORTH so you can swap back to DM41 use the BYE command.

I'll setup a github repository and list it here once I tidy up the code a bit :-)

Please ensure your DM41X state is saved to flash and that the flash filesystem is backed up to a PC before using so you can restore if necessary.

DM-FORTH download (as demonstrated in video), must be placed in flash root directory (FORTH.pgm): dropbox.com/scl/fi/3idmuopvy1zz4pb3b9gpn/FORTH.pgm?rlkey=5qzl27aa6xjgu29tuwgmde0zi&dl=0

md5 Hash:
cb20bd1702ef0cb459ff39b11293cd0b FORTH.pgm

DM-FORTH download (latest version), must be placed in flash root directory (FORTH.pgm): dropbox.com/scl/fi/1xgnt71cipshp1f6rj3kq/FORTH.pgm?rlkey=no2274fj692e21rbx58golzri&dl=0

BP.FTH 41C BEEP example word: dropbox.com/scl/fi/81n5w8zqyi3rfhr714rd8/bp.fth?rlkey=pnw90ufse5c5aupaqdr8im7iw&dl=0

B2K.FTH - 2001 BMP image loading example word (ensure 2001.BMP is already stored in flash OFFIMG directory or choose a different image name): dropbox.com/scl/fi/rs8qame90bsy01c0el1jd/b2k.fth?rlkey=a5u3sa2t8zys7kqp3p3vkoldo&dl=0

NQ.FTH - N-Queens example FORTH file: dropbox.com/scl/fi/tnhvfvxjgfk0tyinum5lj/nq.fth?rlkey=v3tp4cm0itxdmkpcz1gjutayu&dl=0

HT.FTH - Hat / fedora graphic plot example FORTH file: dropbox.com/scl/fi/hvkjcyvfvo2erkyfwj8r0/ht.fth?rlkey=i1oka89l8ti9odbia1dlz93pa&dl=0

SN.FTH - Snake game FORTH file: dropbox.com/scl/fi/0u2zxiz8kthu7t42h1v85/sn.fth?rlkey=uy9f6yvdb2lmak9gobzx6u2go&dl=0

N-Queens calculator benchmarks: hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=700

Original Snake for FORTH: skilldrick.github.io/easyforth/#snake

Based on the following FORTH in C implementation: gist.github.com/lbruder/10007431

Starting FORTH book: forth.com/starting-forth

GNU ARM Toolchain download for developing for the DM41X/DM42 hardware: developer.arm.com/downloads/-/arm-gnu-toolchain-downloads

I used 12.3.rel1 on MacOS to build DM-FORTH.

DMCP documentation: technical.swissmicros.com/dmcp/doc/DMCP-ifc-html/index.html

See the Swissmicros Github repositories for example code including keyboard and display use: github.com/swissmicros

See DMCP_SDK for a simple Hello World and SDKdemo for a simple RPN calculator.

=== Contents ===
0:00 Overview
0:24 Installation
1:43 Introduction & Initial Usage
4:02 Creating Words
5:56 Loading FORTH Files
6:33 Additional Features
8:49 N-Queens Demonstration
9:43 Graphics Demonstration
10:43 Snake Game Demonstration
12:14 Keyboard Assignment
13:03 Availability & Future Features

updated 2 years ago

Swissmicros DM41X FORTH Firmware with N-Queens, Graphics, Sound and Snake Game

Calculator Clique 2023-11-28 | This video demonstrates a native FORTH implementation for the Swissmicros DM41X hardware. I’ve ported and enhanced a C implementation of FORTH and used the same keyboard layout as much as possible so an overlay is not required.

Enhancements include graphics, sound, file loading, keyboard shortcuts and assignment which are demonstrated.

To exit DM-FORTH so you can swap back to DM41 use the BYE command.

I'll setup a github repository and list it here once I tidy up the code a bit :-)

Please ensure your DM41X state is saved to flash and that the flash filesystem is backed up to a PC before using so you can restore if necessary.

DM-FORTH download (as demonstrated in video), must be placed in flash root directory (FORTH.pgm): dropbox.com/scl/fi/3idmuopvy1zz4pb3b9gpn/FORTH.pgm?rlkey=5qzl27aa6xjgu29tuwgmde0zi&dl=0

md5 Hash:
cb20bd1702ef0cb459ff39b11293cd0b FORTH.pgm

DM-FORTH download (latest version), must be placed in flash root directory (FORTH.pgm): dropbox.com/scl/fi/1xgnt71cipshp1f6rj3kq/FORTH.pgm?rlkey=no2274fj692e21rbx58golzri&dl=0

BP.FTH 41C BEEP example word: dropbox.com/scl/fi/81n5w8zqyi3rfhr714rd8/bp.fth?rlkey=pnw90ufse5c5aupaqdr8im7iw&dl=0

B2K.FTH - 2001 BMP image loading example word (ensure 2001.BMP is already stored in flash OFFIMG directory or choose a different image name): dropbox.com/scl/fi/rs8qame90bsy01c0el1jd/b2k.fth?rlkey=a5u3sa2t8zys7kqp3p3vkoldo&dl=0

NQ.FTH - N-Queens example FORTH file: dropbox.com/scl/fi/tnhvfvxjgfk0tyinum5lj/nq.fth?rlkey=v3tp4cm0itxdmkpcz1gjutayu&dl=0

HT.FTH - Hat / fedora graphic plot example FORTH file: dropbox.com/scl/fi/hvkjcyvfvo2erkyfwj8r0/ht.fth?rlkey=i1oka89l8ti9odbia1dlz93pa&dl=0

SN.FTH - Snake game FORTH file: dropbox.com/scl/fi/0u2zxiz8kthu7t42h1v85/sn.fth?rlkey=uy9f6yvdb2lmak9gobzx6u2go&dl=0

N-Queens calculator benchmarks: hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=700

Original Snake for FORTH: skilldrick.github.io/easyforth/#snake

Based on the following FORTH in C implementation: gist.github.com/lbruder/10007431

Starting FORTH book: forth.com/starting-forth

GNU ARM Toolchain download for developing for the DM41X/DM42 hardware: developer.arm.com/downloads/-/arm-gnu-toolchain-downloads

I used 12.3.rel1 on MacOS to build DM-FORTH.

DMCP documentation: technical.swissmicros.com/dmcp/doc/DMCP-ifc-html/index.html

See the Swissmicros Github repositories for example code including keyboard and display use: github.com/swissmicros

See DMCP_SDK for a simple Hello World and SDKdemo for a simple RPN calculator.

=== Contents ===
0:00 Overview
0:24 Installation
1:43 Introduction & Initial Usage
4:02 Creating Words
5:56 Loading FORTH Files
6:33 Additional Features
8:49 N-Queens Demonstration
9:43 Graphics Demonstration
10:43 Snake Game Demonstration
12:14 Keyboard Assignment
13:03 Availability & Future Features

HP 71b pocket computer plays Jingle Bells

Calculator Clique 2024-12-24 | The HP-71b plays Jingle Bells. Written in BASIC and using the BEEP function.

Happy Holidays !

---------- BASIC Code ----------
2 DELAY 0,0
5 DISP "*** Jingle Bells ***"
7 WAIT 3
10 BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.5
20 BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.5
30 BEEP 659,.25 @ BEEP 784,.25 @ BEEP 523,.25 @ BEEP 587,.25 @ BEEP 659,1
40 BEEP 698,.25 @ BEEP 698,.25 @ BEEP 698,.25 @ BEEP 698,.25 @ BEEP 698,.25 @ BEEP 659,.25
50 BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.25 @ BEEP 587,.25 @ BEEP 587,.25
60 BEEP 659,.25 @ BEEP 587,.5 @ BEEP 784,.5 @ BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.5
70 BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.5 @ BEEP 659,.25 @ BEEP 784,.25 @ BEEP 523,.25
80 BEEP 587,.25 @ BEEP 659,1 @ BEEP 698,.25 @ BEEP 698,.25 @ BEEP 698,.25 @ BEEP 698,.25
90 BEEP 698,.25 @ BEEP 659,.25 @ BEEP 659,.25 @ BEEP 659,.25 @ BEEP 784,.25 @ BEEP 784,.25
100 BEEP 698,.25 @ BEEP 587,.25 @ BEEP 523,1
105 WAIT 3
110 DISP "*** Happy Holidays ***"

PX41CX Emulator of the Classic HP-41CX Calculator

Calculator Clique 2024-08-01 | The PX41CX is the latest model in Alex’s PX series of modern hardware, emulating classic HP calculators - this time the HP-41CX.

Alex's page - check here for PX41CX information including ordering: paxer.net/px41cx

PX41CX Firmware Utility for changing ROMs and options: github.com/diemheych/px41cx-utility

PX41CX screenshot decoder from hex in serial log file: github.com/diemheych/px41cx-hex2bmp

DM41X state file decoder/encoder: http://technical.swissmicros.com/decoders/dm41

HP Prime CHIP-8 Emulator in Python and Games including Space Invaders and Pac-Man

Calculator Clique 2024-05-02 | This video demonstrates a port of CHIP-8 to the HP Prime calculator. CHIP-8 was originally developed in the 1970s by Joseph Weisbecker for creating computer games on early microcomputers.

PrimeCHIP-8 Github repository including download and sample ROMs: github.com/diemheych/PrimeCHIP8

CHIP-8 on Wikipedia: en.wikipedia.org/wiki/CHIP-8

CHIP-8 implementation used for HP Prime port: github.com/AlpacaMax/Python-CHIP8-Emulator

CHIP-8 software database: github.com/chip-8/chip-8-database

Old CHIP-8 DOS under Windows emulator that includes many games: http://www.pong-story.com/chip8/chp8_220.zip

Categorised CHIP-8 ROM downloads including documentation: archive.org/details/chip-8-games

=== Contents ===
0:00 Overview and Features
0:56 Keyboard Layout
1:08 Running CHIP-8 and the emulator test ROMs
2:02 IBM logo simple test
2:19 Space Invaders
2:55 Pac-Man (Blinky)
4:01 Brix
4:41 Loading ROMs
5:03 Closing and Future Enhancements

Swissmicros DM42 FORTH Firmware runs N-Queens, Graphics and Snake Game

Calculator Clique 2024-03-05 | This is a quick followup to my DM41X FORTH Firmware video.

I borrowed a DM42 (shoutout to @CalculatorCulture) and recompiled FORTH for it and adjusted the keyboard, based on the DM42 layout, which is shown in the video before a quick demonstration.

Please let me know if you have any feedback on the keyboard layout and the FORTH implementation functionality.

See the DM41X FORTH Firmware video for more details including interactive usage, shortcut and key assignment, word creation and loading and running FORTH word files.

Full Swissmicros DM41X FORTH Firmware video: youtu.be/jUzSyXVy9bo

FORTH firmware for the DM42 download: dropbox.com/scl/fi/4m7u7uepul4idszf8tyia/DM42-FORTH.pgm?rlkey=m5uo3dfart1gqlbgu45no0mnd&dl=0

Swissmicros DM42 CHIP-8 Firmware and Games

Calculator Clique 2024-02-06 | This is a quick followup to my Swissmicros DM41X CHIP-8 Firmware video.

I borrowed a DM42 (shoutout to @CalculatorCulture) and recompiled CHIP-8 for it and adjusted the keyboard, based on the DM42 layout, which is shown in the video before a quick demonstration.

See the DM41X CHIP-8 video for more details and sample games.

Full Swissmicros DM41X CHIP-8 Firmware video: youtu.be/NjaudptrTuo

CHIP-8 firmware for the DM42 download: dropbox.com/scl/fi/o7nty7cqmvnaqcj9wur39/DM42-CHIP8.pgm?rlkey=l56a6bupz3dxxncg5wkejtnav&dl=0

Swissmicros DM41X CHIP-8 Firmware and Games including Space Invaders and Pac-Man

Calculator Clique 2024-01-09 | This video demonstrates a port of CHIP-8 to the Swissmicros DM41X hardware. CHIP-8 was originally developed in the 1970s by Joseph Weisbecker for creating computer games on early microcomputers.

Please ensure your DM41X state is saved to flash and that the flash filesystem is backed up to a PC before using so you can restore if necessary.

CHIP-8 for the DM41X download: dropbox.com/scl/fi/c4niglg181bkbx3unx2el/CHIP8.pgm?rlkey=7on9c3hguat0bfusbwy33dnn3&dl=0

IBM Logo CHIP-8 ROM download: dropbox.com/scl/fi/plxmmkmbvqrneyb7q5td1/ibm.ch8?rlkey=71b6jha5m494cuz825nsjcdtp&dl=0

Test_opcode CHIP-8 ROM download: dropbox.com/scl/fi/buym27eyoshmpqqrfg1wy/test_opcode.ch8?rlkey=am81auhpxfp2ed4bhodicr09n&dl=0

BC_Test CHIP-8 ROM download: dropbox.com/scl/fi/6lpwr64b7zulnd0koke5t/bc_test.ch8?rlkey=i43xid4jydnv960eai74t7uzi&dl=0

Space Invaders CHIP-8 ROM download (left: + shoot: 4 right: 5): dropbox.com/scl/fi/d5vy6fav6evwbi118yp84/invaders.ch8?rlkey=xd9cgdwi0jpabizrbioqg0he0&dl=0

Pac-Man (Blinky) CHIP-8 ROM download (left: x right: 1 up: 8 down: 5): dropbox.com/scl/fi/2za8555ahhyr8eyzn40vy/BLINKY.ch8?rlkey=x00xsqjv12ko80fuh4wb1kve3&dl=0

Brix CHIP-8 ROM download (left: + right: 5): dropbox.com/scl/fi/bup22j9coco3nleb11s5z/BRIX.ch8?rlkey=tjy2fneuajly452vpetbx5zsg&dl=0

CHIP-8 on Wikipedia: en.wikipedia.org/wiki/CHIP-8

CHIP-8 implementation used for DM41X port: github.com/cookerlyk/Chip8

How to run CHIP-8 on the HP-48 graphing calculator: tobiasvl.github.io/blog/chip-8-hp-48

CHIP-8 software database: github.com/chip-8/chip-8-database

Old CHIP-8 DOS under Windows emulator that includes many games: http://www.pong-story.com/chip8/chp8_220.zip

Categorised CHIP-8 ROM downloads including documentation: archive.org/details/chip-8-games

=== Contents ===
0:00 Overview
0:17 Background and Architecture
1:19 Porting to the DM41X
1:40 Keyboard Layout
2:03 Installation
3:12 Running CHIP-8 and the emulator test ROMs
5:10 Space Invaders
6:21 Pac-Man (Blinky)
7:34 Brix
8:44 Closing and Future Enhancements

Swissmicros DM41X Plays Jingle Bells

Calculator Clique 2023-11-20 | Merry Christmas and Happy Holidays 2023 !!!

This year Jingle Bells is played on the Swissmicros DM41X hardware running my port of FORTH.

Original RPL program for the music: hpcalc.org/details/2629

Christmas images: forum.swissmicros.com/viewtopic.php?p=4083#p4083

HP Prime runs FORTH in Python

Calculator Clique 2023-09-27 | This video demonstrates a simple implementation of FORTH written in Python for the HP Prime.

I took a small, simple, educational implementation of FORTH in Python and ported it to the HP Prime version of MicroPython. I also added a number of standard FORTH features that were missing including control functions DO, LOOP, +LOOP, WHILE and numerous stack operations and other functions.

Floating point operations and a number of Prime graphic and system functions have also been included.

N-Queens and the graphical game Snake are demonstrated.

HP Prime FORTH program download: dropbox.com/scl/fi/71z79niukknlvj5be3ezd/FORTH.hpprgm?rlkey=pytizlulzemqzqh1r6bhwskd7&dl=0

HP Prime FORTH built-in words: dropbox.com/scl/fi/jregkpfgklofeyh3lrd2u/PrimeFORTHWordsReleaseAll.txt?rlkey=8uia1dhf8iqjrjaekv2c431xr&dl=0

N-Queens for Prime FORTH: dropbox.com/scl/fi/fg9ti146nm9vqwsclu3yp/nqpr.fth?rlkey=kbfiaegbpl2s88xlylidqszpp&dl=0

Snake for Prime FORTH: dropbox.com/scl/fi/h9nwu9b49yezba82x2hkl/snake.fth?rlkey=7k6q43y6edo0utq0cs433p0xy&dl=0

Github repository: github.com/diemheych/PrimeFORTH

Original Snake for FORTH: skilldrick.github.io/easyforth/#snake

Original FORTH in Python: openbookproject.net/py4fun/forth/forth.html

Starting FORTH book: forth.com/starting-forth

=== Contents ===
0:00 Introduction
1:27 Simple calculations and word creation
4:00 Floating point example
4:55 Loading FORTH files, Stars example
6:31 Graphics example
7:44 N-Queens demonstration
8:41 N-Queens physical calculator demonstration
9:31 Snake game physical calculator demonstration
10:36 Conclusion

HP 75C portable computer from 1982 runs FORTH and N-Queens

Calculator Clique 2023-07-03 | This video provides an overview of the HP 75C portable computer from 1982 and details and demonstrates it running FORTH. FORTH is demonstrated with a number of example words including N-Queens.

HP 75C information from The Museum of HP Calculators: hpmuseum.org/hp75.htm

FORTH AGE software for the HP 75C: http://www.forth.org/hp-75c.html

HP 80 Series information from The Museum of HP Calculators: hpmuseum.org/hp85.htm

NQueens source words for the HP 75C: dropbox.com/s/8w7goz0jwj64r7r/NQ3-75.txt?dl=0

N-Queens calculator benchmark results: hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=700

Starting FORTH: forth.com/starting-forth

=== Contents ===
0:00 HP 75C Overview
0:49 Size comparison with HP 71b and HP 15C
1:25 FORTH for the HP 75C
2:46 HP 75C memory map and FORTH
3:52 FORTH interactive examples
7:24 FORTH word examples
10:18 Loading FORTH text files
12:18 Debug word example
13:21 N-Queens demonstration
14:30 FORTH word list
14:58 Conclusion

HP 35S program to calculate Eigenvalues of Symmetric Matrices using Jacobi’s Method

Calculator Clique 2023-05-17 | This video demonstrates a program for the HP 35S programmable calculator that finds all eigenvalues of a real NxN symmetric matrix using Jacobi’s iterative method.

The 35S program is a port of the HP 41C program written by Valentin Albillo in 1980.

HP 35S program listing (updated): dropbox.com/s/yjq6s1z6s017rwz/HP%2035S%20Symmetric%20Eigenvalues.pdf?dl=0

Valentin Albillo's paper and original 41C program: albillo.hpcalc.org/programs/HP%20Program%20VA420%20-%20HP-41C%20Eigenvalues%20of%20Symmetric%20Matrices%20-%20Jacobi.pdf

Jacobi method from Wikipedia: en.wikipedia.org/wiki/Jacobi_eigenvalue_algorithm

=== Contents ===
0:00 Intro
0:14 Program Details
2:01 3x3 Example
4:04 4x4 Example
5:58 Closing

HP 42S Programmable Scientific Calculator Display Versions

Calculator Clique 2023-05-06 | The HP 42S programmable scientific calculator was released in 1988 and had two different displays during its lifetime.

This video details and demonstrates the 2 display versions. The visibility varies by display contrast setting and viewing angle. The original display background goes dark very quickly compared to the later version making it difficult to view even though the text is darker.

If you are looking at buying a 42S to use regularly, I would recommend the later version.

The 42S also had 3 ROM versions during its lifetime, version A, B and C which I will cover in an upcoming video.

HP Prime QR Code Encoder Program in Python

Calculator Clique 2023-04-25 | This video demonstrates a QR code encoding program written in Python for the HP Prime calculator. A string is taken as input and encoded in the appropriate version QR code to hold the string contents. The string can contain simple text, a website, a contact (in VCARD format) or any other content formatted and accepted by QR code readers.

Note: HP Prime requires firmware that supports Python.

HP Prime program download: dropbox.com/s/z71w4plg8vtqisu/QR.hpprgm?dl=0

MicroPython uQR used for Prime port: github.com/JASchilz/uQR

--- Contents ---
0:00 Introduction
1:59 Demonstration

Casio MG-880 Calculator Plays Star Wars Theme / Main Title

Calculator Clique 2023-02-28 | The Casio MG-880 calculator was released in Japan in 1980 and included a basic calculator, melody and game capability (Invaders).

This video demonstrates the music melody capability by playing the Star Wars theme. The keys dot and 0 through 9 map to the notes A through G and A through D the next octave up.

カシオMG-880電卓は、スターウォーズのテーマを果たしています

HP Prime plays Hunt the Wumpus in Python

Calculator Clique 2023-02-13 | In my ongoing effort to run one of my favourite calculator games on all my programmable calculators and pocket computers, here is Hunt the Wumpus, from 1973, running on the HP Prime.

Hunt the Wumpus is a text based adventure game originally developed in BASIC and subsequently ported to a number of languages and platforms.

This video details and demonstrates Hunt the Wumpus ported to the HP Prime Python environment.

HP Prime program download: dropbox.com/s/zkgfhnbwc430igs/Wumpus.hpprgm?dl=0

Hunt the Wumpus on the HP 41C: youtu.be/k4fhZfqd5E8

Hunt the Wumpus on the Casio VX-4: youtu.be/vBNfa1r4gtU

Ports to a variety of languages: rosettacode.org/wiki/Hunt_the_Wumpus

Hunt the Wumpus on Wikipedia (including cave map): en.wikipedia.org/wiki/Hunt_the_Wumpus

HP 35S Scientific Calculator Reset / Clear Memory / Factory Reset Procedure

Calculator Clique 2023-01-23 | This video demonstrates how to erase / reset / clear the memory of the HP 35S scientific calculator.

The memory clear procedure is activated by pressing and holding the 'C' key (bottom left of keyboard), then pressing and holding the 'R/S' key, then pressing the 'I' key and then letting go of all three keys simultaneously.

Note, all settings, variables and programs are erased by performing this procedure.

HP 35S User's Guide: http://h10032.www1.hp.com/ctg/Manual/c01579350

HP 35S Scientific Calculator Self-test / Self Test / Test Procedure

Calculator Clique 2023-01-23 | This video demonstrates how to perform a self-test on the HP 35S scientific calculator. The test includes tests for the display, calculator operation and the keyboard.

The self-test is activated by pressing and holding the 'C' key (bottom left of keyboard), then pressing the 'XEQ' key and then letting go of both keys simultaneously.

To exit the self-test once it is complete, press and hold the 'C' key and then press the 'GTO' key and then let go of both keys.

HP 35S User's Guide: http://h10032.www1.hp.com/ctg/Manual/c01579350

HP 35S Scientific Programmable Calculator Alpha Messages, Prompts and Notes Programming

Calculator Clique 2023-01-23 | The HP 35S programmable scientific calculator includes program message display capability, however, it's not intuitive how to configure it.

This video demonstrates the 35S message capability and provides a simple demonstration of how to configure in a program.

HP 35S User's Guide: http://h10032.www1.hp.com/ctg/Manual/c01579350

HP 48G Plays Jingle Bells

Calculator Clique 2022-12-26 | Merry Christmas and Happy Holidays!

RPL program for music: hpcalc.org/details/2629

GROB for image: hpcalc.org/details/4146

HP 41C and Swissmicros DM41X run FORTH and N-Queens

Calculator Clique 2022-10-18 | This video provides an overview and demonstration of the unique features of FORTH-41 - a machine code module implementation of FORTH-79 for the HP 41C series and compatible calculators, such as the Swissmicros DM41X.

FORTH-41 was developed in 1984 by Serge Vaudenay when he was 16.

The video demonstrates FORTH-41 on the HP 41CV and the Swissmicros DM41X.

NQueens has also been ported to FORTH-41 and is demonstrated. Modifications were made to cater for the different memory addressing used and to improve performance.

FORTH-41 download: hpmuseum.org/forum/thread-16007.html

N-Queens for FORTH-41 will be added here soon.

= Contents =
0:00 Intro
1:03 41CV setup & test
2:34 FORTH-41 features demonstrated on DM41X
9:42 N-Queens for FORTH-41

HP 50G FORTH

Calculator Clique 2022-09-28 | This video demonstrates a simple C implementation of FORTH that I ported to the HP 50G programmable calculator.

Please let me know if you have any feedback or issues in the comments.

Please ensure you have backed up your data before using. I have only had a few hangs and haven't lost any data when performing a hardware reset but it's better to be safe than sorry.

Standalone FORTH for 50G download: dropbox.com/s/w49sfx7dlw6dbep/FRTH.BIN?dl=0

"Starting FORTH" online and downloadable FORTH textbook and tutorials: forth.com/starting-forth

N-Queens for 50G: dropbox.com/s/n38scne64m0xvhv/NQ.txt?dl=0

N-Queens calculator benchmarks: hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=700

SysRPL on the 50G step by step: youtu.be/kHAGnU2HiJE

--- Contents ---
0:00 Intro
1:04 Simple FORTH examples
3:54 Loading FORTH from the stack to sum squares
5:26 Comparison of FORTH and SysRPL
5:55 N-Queens demonstration and performance comparison
7:12 Closing

Casio VX-4 plays the classic game Hunt the Wumpus

Calculator Clique 2022-08-31 | 'Hunt the Wumpus' is a text based adventure game developed by Gregory Yob in 1973 and written in BASIC.

The original version has been modified to run on the Casio VX-4 pocket computer and demonstrated.

Minimal changes were required to the original version (excluding adapting instructions for smaller screen). The modified program will probably work on most Casio BASIC pocket computers.

The VX-4 requires additional memory with an RP-8 or RP-33 to load the original program. Removal of the instructions and comments may reduce the size enough to support the default memory configuration.

Casio VX-4 version BASIC source code (note, instructions have not been updated for VX-4 display size): dropbox.com/s/11efum60t91qubd/WumpusVX-4.txt?dl=0

Hunt the Wumpus information on Wikipedia: en.wikipedia.org/wiki/Hunt_the_Wumpus

Variety of versions and language implementations: rosettacode.org/wiki/Hunt_the_Wumpus

Hunt the Wumpus on the HP 41C: youtu.be/k4fhZfqd5E8

--- Contents ---
0:00 Intro
0:44 Game demonstration

Casio VX-4 / FX-870P Machine Code Game Cosmic Fly Standalone Version

Calculator Clique 2022-08-23 | Demonstration of the Casio VX-4 / FX-870P Pocket Computer machine code game Cosmic Fly.

This version runs standalone making it easier to load and execute without dependancies on other programs or a machine code loader.

The standalone version is in BASIC and checks the machine code area and loads the machine code (if required) and executes the program. This version can also be manually entered if no transfer cable is available (approximately 115 lines of BASIC).

Note, the VX-4 requires expanded memory with an RP-8 or RP-33 memory module to load the standalone version.

Standalone Cosmic Fly download: http://luckleo.cocolog-nifty.com/pockecom/VX-4/HTML/dl/CosmicV4.zip

--- Contents ---
0:00 Intro
1:18 Game demo

HP 50G System RPL / SysRPL Configure and Test Step by Step

Calculator Clique 2022-08-11 | This video demonstrates how to enable and test System RPL / SysRPL / Sys RPL on the HP 50G calculator.

References and downloads:

extable library: hpcalc.org/details/3245

MASD documentation: hpcalc.org/details/2986

Programming in System RPL: hpcalc.org/details/5142

Sample programs from the above book: hpcalc.org/details/5144

HP 50g/49g+/48gII Advanced User's Reference Manual: literature.hpcalc.org/official/hp50g-aur-en.pdf

Video providing more details of the program commands used in the example Sys RPL program (on the HP 48GX): youtu.be/pwpscVmM310

--- Contents ---
0:00 Intro
0:58 Libraries required
1:46 Loading and attaching the libraries
3:11 System flags and configuration
4:02 Sample Sys RPL program and formatting details
5:09 Program compilation
5:57 Sys RPL Stack feature
6:25 Saving and executing the sample program
7:08 Conclusion

The calculator in the video is running the latest HP firmware, version 2.15.

As SysRPL and machine code provide lower level access to the calculator and error checking must be performed by the programmer, incorrect use may result in lockups and/or memory corruption. Ensure you have backed up your calculator before configuring and using.

HP 15C LE 3x Memory Upgrade via Software Patch - 64 to 192 Registers

Calculator Clique 2022-07-20 | This video details and demonstrates the 15C LE memory upgrade via software patching.

The 15C LE firmware can be patched and reflashed to triple the memory from 64 to 192 registers providing additional data registers, program and advanced functions capacity.

The checksum of the patched release software version (dated 04/15/2011) as shown by diagnostics option 2 is E7FFh.

Note: This procedure was tested multiple times with no issues, however, please proceed at your own risk on your own calculator.

Video showing how to reflash the 15C LE: youtu.be/y5EKQJ62RlU

Video showing 15C LE self-test: youtu.be/QEvuOJTfuaw

--- Contents ---
0:00 Introduction
2:02 Standard Memory
2:24 Upgraded Memory
4:09 Conclusion
4:35 How to edit the 15C LE firmware

HP 15C LE PSE / Pause Bug Fix

Calculator Clique 2022-07-04 | The HP 15C LE was a 2011 re-release of the HP 15C, however, it was using an ARM processor running a NUT emulator.

The 15C LE was released with a significant bug, the PSE function only worked once and then the display would go blank for the remainder of the program without the ability to display any results or accept input.

Although the 15C LE was flash upgradable, HP never released an update to resolve this well known bug.

This video demonstrates the bug and provides and demonstrates a fix.

Note: This procedure was tested multiple times with no issues, however, please proceed at your own risk on your own calculator.

HP 15C LE bugs:
hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/articles.cgi?read=1089

Details for making your own software upgrade cable:
http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv021.cgi?read=229916
hpmuseum.org/forum/thread-183.html
web.archive.org/web/20190402142724/http://www.thereminworld.com/Forums/T/29229/diy-calculator-hp30b-to-wp34s

--- Contents ---
0:00 Intro
1:28 Release software checksum and date verification
1:55 Demonstration of PSE bug in a program
2:44 Software load
6:07 Fixed software checksum and date verification
6:33 Demonstration of PSE working in a program
7:31 Conclusion

New Casio VX-4 / FX-880p Aftermarket RP-33 Memory Upgrade / カシオ VX-4 FX-880p メモリアップグレード

Calculator Clique 2022-06-15 | Demonstration of a new RP-33 compatible 32Kb memory module upgrade for the Casio VX and FX pocket computer series' (and others that support the RP-33).

The module is demonstrated on the VX-4 and the FX-880p. The VX-4 is readily available today but has limited memory available to the user (approximately 4Kb) which greatly limits program capacity and machine code capability. The early FX devices also had limited memory.

The RP-33 module and more information is available at: tindie.com/products/hey_birt/casio-rp-33-module-redux-new-32k-sram-module

- Contents -
0:00 Introduction
1:23 Original and new module comparison
2:17 VX-4 standard memory and module installation
3:00 VX-4 upgraded memory verification and testing
4:40 FX-880p standard memory and module installation
5:41 FX-880p upgraded memory verification and testing

HP 67 Teenix CPU Board Upgrade to Continuous Memory and More

Calculator Clique 2022-05-28 | This video provides an overview and demonstration of the features of the Teenix HP 67C CPU board which is a drop in replacement for the original HP 67 CPU board that provides a number of extra features including continuous memory, external program storage space and alphanumeric capability.

The alphanumeric notes features uses the unused keycodes black shift [h] [A] and black shift [h] [B] for note display and stop and note display and pause respectively, in a program.

The 67C CPU board is available at: teenix.org

---Contents---
0:00 Intro and CPU board installation
0:47 Power on and configuration menu
3:52 Notes demonstration
4:29 Standards Pac Calendar modified to display Day of Week
5:39 Load an external program and display as alphanumeric instead of keycodes
6:54 CPU board upgrade and conclusion

HP 41C plays Hunt the Wumpus

Calculator Clique 2022-05-09 | Hunt the Wumpus is a text based adventure game developed in 1973 and originally written in BASIC.

The video shows the 1981 version for the HP 41C programmable calculator (requires 1 memory module or 41CV / 41CX).

HP-41 Users' Library Solutions: Games including instructions and program listing: literature.hpcalc.org/community/hp41-ul-games-en.pdf

Barcode: http://www.hp41.org/LibView.cfm?Command=View&ItemID=1132

More information about Hunt the Wumpus: en.wikipedia.org/wiki/Hunt_the_Wumpus

---Contents---
0:00 Intro
1:30 Game play

HP 41C Calculator Load and Play Barcode Simon Game Using 82153A Wand

Calculator Clique 2022-04-16 | The Simon game is a simple memory game from the first HP Users' Solutions Library Games book.

The game is loaded from barcode using the HP 82153A optical wand and then demonstrated.

HP Users' Library Solutions: Games: literature.hpcalc.org/community/hp41-ul-games-en.pdf

---Contents---
0:00 Introduction
0:28 Load game
1:47 Game play

Canon F-800P Calculator Overview and Programming / Canon F-800P 電卓の概要とプログラミング

Calculator Clique 2022-03-26 | Overview and demonstration of a number of features of the Canon F-800P programmable calculator including example programs showing data entry and display, looping and conditional looping.

---Contents---
0:00 Introduction
0:41 Bases and bitwise operations
1:55 Fractions
2:56 Constants
3:10 Conversions
3:34 Complex numbers
4:14 Programming overview
5:12 Data entry program example
6:01 Data display and loop program example
6:51 Conditional looping program example
8:41 Comparison with HP Voyager series
9:22 Hard case

HP 49G NIB - should I keep it and open it?

Calculator Clique 2022-03-21 | I recently acquired a HP 49G calculator as part of a collection. I wasn't looking for a 49G and am now wondering whether it is worth keeping and/or opening.

I have a 48GX and a 50G already so not sure if there's any good reason to open and use the 49G as covered in the video.

Let me know your thoughts in the comments.

HP 15C Synthetics and Synthetic Programming

Calculator Clique 2022-03-07 | A brief overview of synthetics and synthetic programming on the HP 15C programmable calculator.

The sample program was adapted from the example provided in the link below.

After entering the program, the preparation steps displayed are:

1 ENTER 36 DIM A
1.000000044
Rotate - OFF, press and hold y^x, press ON, release y^x
STO I
GSB A

Detailed information about HP 15C synthetics, including standard and synthetic opcodes, status registers and their use, and display segment coding can be found at: http://www.brouhaha.com/~eric/hpcalc/hp15c/tennant83.html

- Contents -
6:13 Detailed Program Listings

HP 41C/CV/CX Service Module / Self-tests - Part 2

Calculator Clique 2022-02-22 | Demonstration of the HP 41C/CV/CX programmable calculator series Service Module, version 5061-7221.

The HP 41C series did not include any self-test feature and a service module was required to test the calculator, modules and card reader.

The service module was used by HP to test, troubleshoot and repair the 41c series calculators, various modules and peripherals and was not available to the consumer.

The 5061-7221 Service Module tests the newer, 41CV and 41CX calculators and modules including Time, X Functions and X Memory and ROM modules larger than 8Kb.

Part 1, HP 41C, modules and card reader tests: youtu.be/5m6U4a58ZA8

HP 41C Service Manual: literature.hpcalc.org/community/hp41c-sm-en.pdf

HP 41C/CV/CX Service Manual: literature.hpcalc.org/community/hp41c41cv41cx-sm-en.pdf

NoV-64d module used to load the Services Modules from: clonix41.org

---Contents---
0:00 Intro
0:45 Calculator Tests
2:02 Calculator ROM Versions
2:11 Service Module Tests
2:31 Time Module and Calculator Frequency Tests
3:12 X Functions and X Memory Module Tests
4:39 ROM Module Tests
5:29 More Information

Can you identify this HP 41C custom ROM module?

Calculator Clique 2022-02-17 | Looking for who made this, what it does and any pointers to documentation.

Please leave a comment if you know anything about this module.

HP 42S Easy Double Speed / Turbo Mode for Calculator and Programs

Calculator Clique 2022-02-14 | This video demonstrates an easy way of doubling the speed of a HP 42S programmable calculator via a configuration change only.

The default speed is demonstrated by executing BEEP and a simple loop program. The calculator speed is then doubled and the speed increase is demonstrated using the same commands.

Note, This procedure was tested multiple times on ROM version A and C calculators with no issues, however, please proceed at your own risk on your own calculator (for example memory could be lost etc).

HP 41C/CV/CX Service Module / Self-tests - Part 1

Calculator Clique 2022-02-08 | Demonstration of the HP 41C/CV/CX programmable calculator series Service Module, version ET-11966.

The HP 41C series did not include any self-test feature and a service module was required to test the calculator, modules and card reader.

The service module was used by HP to test, troubleshoot and repair the 41c series calculators, various modules and peripherals and was not available to the consumer.

There are two 41c service modules, the ET.-11966 module included 41C, standard memory module, 4 and 8 kilobyte ROM modules and card reader tests. This module will be demonstrated in this video using a 41C, a ROM emulation module with the service module loaded, and a keyboard overlay showing the Service Module keyboard layout.

HP 41C Service Manual: literature.hpcalc.org/community/hp41c-sm-en.pdf

HP 41C/CV/CX Service Manual: literature.hpcalc.org/community/hp41c41cv41cx-sm-en.pdf

HP 82104A Card Reader Service Manual: literature.hpcalc.org/community/hp82104a-sm-en.pdf

NoV-64d module used to load the Services Modules from: clonix41.org

Part 2: youtu.be/NYBLIUjai8c

---Contents---
0:00 Intro
1:06 Calculator Tests
2:27 Calculator ROM Versions
2:38 Service Module Tests
2:58 ROM Module Tests
5:05 Memory Module Test
5:38 Card Reader Tests
6:26 More Information

TI 59 Calculator Master Library Module Diagnostics / Self-test

Calculator Clique 2022-02-03 | The TI 59 came with the Master Library Module which included 25 programs for maths, finance, calendar functions and a game. The module also included a diagnostics program that tests the calculator, as shown in this video.

To test the TI 59 calculator, execute the Master Library Module calculator diagnostics by pressing 2nd, PGM, 01, SBR, and then '='. If the program returns 1 after approximately 15 seconds, then the calculator is operating correctly. Any other result indicates a problem.

TI 83 Plus Calculator Plays Machine Code Pac-Man

Calculator Clique 2022-01-29 | Demonstration of the classic arcade game Pac-Man on the TI-83 Plus written in Z80 machine code.

Game and Doors CS shell can be downloaded from:
ticalc.org/pub/83plus/asm/games

---Contents---
0:00 Intro
0:24 Starting Doors CS shell
0:36 Starting Pac-Man
1:02 Game Play
2:45 Game Over

HP 19B II Business Consultant II Self-test and Demonstration Mode

Calculator Clique 2022-01-09 | This video shows the HP 19B II Business Consultant II calculator self-tests and demonstration mode.

The keyboard self-test is not documented in the manual and is accessed by pressing the Exit key and the On key simultaneously.

The demonstration mode walks through the major features of the calculator and is a fairly unique calculator feature.

---Contents---
0:00 Intro
0:10 Self-test
0:33 Keyboard test
1:49 Demonstration mode

HP 48 Three Versions of Classic Snake Game

Calculator Clique 2022-01-06 | Three machine code versions of the classic game, Snake, are demonstrated on the HP 48 series calculator.

Downloads for each version:

hpcalc.org/details/574
hpcalc.org/details/575
hpcalc.org/details/4191

---Contents---
0:00 Intro
0:10 First version of Snake
2:33 Second version of Snake
4:10 Third version of Snake
5:42 Conclusion

HP 48 User RPL and System RPL (SysRPL) Programming Comparison

Calculator Clique 2021-12-31 | The HP 48 calculator is programmed using Reverse Polish Lisp, RPL, however, the RPL available to the end user, is actually a small subset of a larger, richer, RPL language, which the HP 48 calculator’s operating system is actually written in. To distinguish between these two versions of RPL, the standard user accessible RPL is called User RPL and the richer superset is called System RPL, or SysRPL.

A simple User RPL program to sum the squares from 1 to n is shown alongside an equivalent System RPL version. The performance of the programs is then compared for the sum of squares from 1 to 2000.

Jazz System RPL and machine language development environment for the HP 48: hpcalc.org/details/1670

Introduction to System RPL and Assembly Language by James Donnelly: hpcalc.org/details/7114

Faulhaber's formula: en.wikipedia.org/wiki/Faulhaber%27s_formula

- Contents -
0:00 Intro
1:10 User RPL and System RPL programs
3:28 Test programs and compare performance
4:21 Program completion comparison
4:29 Closing

Casio VX-4 / FX-870P Portable Computer Undocumented Self-test / カシオ VX-4 / FX-870P セルフテスト

Calculator Clique 2021-12-13 | Demonstration of the undocumented self-test feature of the Casio VX-4 and FX-870P Portable Computer.

The Casio VX-4 Portable Computer was released in 1989 and stands out from many similar pocket computers by including not only the BASIC language but also ‘C’ and Common Algebraic Specification Language, or CASL. Machine code programming was also accessible, however, it was not officially supported. The display is 191x32 pixels, instead of just including pixels for each character position like the FX-880P, however, without standard graphics commands machine code was required to utilise.

The self-test is activated by entering 'SYSTEM *'.

The VX-4 in the video includes the optional RP-8, 8Kb RAM expansion.

See my video about the new aftermarket RP-33 memory upgrade at: youtu.be/B9bYyJGjaDM

For a review of the Casio VX-4 see youtube.com/watch?v=n5LAFKWceGM

----Contents----
0:00 Intro
0:12 Activate Self-test
0:20 Self-test Menu
0:49 LCD Test
1:06 Keyboard Test
3:10 Display Loop

HP 16C Computer Scientist Calculator Self-test #shorts

Calculator Clique 2021-12-11 | Demonstrates the HP 16C Computer Scientist programmable calculator self-tests.

The HP 16C was part of the HP Voyager calculator series and all original Voyager calculators had the same self-test procedure.

Holding the Multiply and On keys, and then releasing Multiply then On, performed a calculator test and finished with a display test.

Holding the Divide and On keys, and then releasing Divide then On, performed a keyboard test requiring all keys to be pressed in order from left to right, from the top row to the bottom.

See the HP 16C reviewed at youtube.com/watch?v=bRvGoRbR_bA
#shorts

HP 48 Calculator Infrared IR Transfer To Another HP 48 Calculator

Calculator Clique 2021-12-03 | The HP 48 series calculator included an infrared transmitter and receiver allowing reliable transfer between calculators or compatible devices without a serial cable.

This video demonstrates transferring a game from one HP 48GX to another and then verifying the transfer by running the game.

- Contents -
0:00 Intro
0:03 Start Receiver
0:12 Setup Transmitter
0:31 Start Transfer
2:40 Transfer Completes
2:55 Verify Transfer by running program

HP 48 Calculator Machine Code Classic Game - Lemmings

Calculator Clique 2021-11-29 | Machine code version of the classic PC game, Lemmings, for the HP 48 calculator.

Looks just like the original that I played for hours on the PC back in the day.

Includes 20 levels and a level editor. Only thing missing is sound.

Information about the game:
en.wikipedia.org/wiki/Lemmings_(video_game)

---- Contents ----
0:00 Intro
0:11 Start Game
0:15 Level 1
2:40 Level 2
4:39 Level 3
4:55 Quit

HP 48 Machine Code Pac-Man Game Demo

Calculator Clique 2021-11-24 | Demonstration of the HP 48 programmable calculator running a machine code version of Pac-Man (called Hapaman).

Shows that the HP 48 is fast enough to run arcade games when written in machine code.

An HP 48GX is used in the demonstration.

The game can be downloaded from: hpcalc.org/details/510

Windows program to transfer programs to the 48: hpcalc.org/details/5411

USB to serial cable for the 48 (there are a number of vendors selling similar cables, this is the one I purchased and works for me, I am not affiliated with the seller): https://www.ebay.com.au/itm/125420231356?hash=item1d33a0dabc:g:V1EAAOSwssJhJ0Js

HP 41C Series Synthetic Programming with the Byte Grabber Tone Demonstration

Calculator Clique 2021-11-20 | This video demonstrates synthetic programming on the HP 41C series calculator by creating the byte grabber, verifying it and using it to create a synthetic TONE in a program.

Note, incorrect synthetic programming can cause the calculator to lock up or cause a MEMORY LOST so please ensure your data is backed up.

R/S must be pressed before the display flashes after CAT 1. It may take multiple attempts to get the timing right. If the output does not match the example then just start again.

The steps demonstrated and further examples are detailed at:
hpmuseum.org/prog/synth41.htm

----Contents----
0:00 Intro
0:32 Byte Grabber Creation
2:06 Byte Grabber Verification
2:13 Synthetic Tone Program Creation
2:43 Synthetic Tone Verification

HP 67 and HP 41C Card Readers and Program Translation Using Calendar Functions from Standards Pac

Calculator Clique 2021-11-18 | The HP 67 and HP 41C programmable calculators were released 3 years apart and were very different. The HP 67 had a builtin card reader, no alpha capability and no continuous memory. The HP 41C was alphanumeric and had continuous memory and an optional card reader.

Despite the differences, HP used the same magnetic cards for both calculators and included functionality in the 41C card reader to read and translate programs from the HP 67.

Loading and executing the HP 67 Calendar Functions card day of week function is demonstrated for todays date on both calculators.

----Contents----
0:00 Intro
0:36 Read Card into 67
1:01 Read Card into 41c
1:32 Run Program
1:55 Results

HP 67 Scientific Programmable Calculator Diagnostic Program SD-15C (self-test)

Calculator Clique 2021-11-14 | Demonstrates the HP 67 programmable scientific calculator Diagnostic Program card from the Standards Pac.

Version SD-15C is used which produces the following output if all tests are successful:

57.0 (after approximately 2 seconds)
-888.9-90 (after approximately 2 minutes)
-8.889-88
-8.888888888-88

----Contents----
0:00 Intro
0:26 Load Diagnostic Program
0:55 Run Diagnostic Program
2:41 Diagnostic Program Completion