ti84-forth
ictf-carprey
| ti84-forth | ictf-carprey | |
|---|---|---|
| 3 | 1 | |
| 83 | 3 | |
| - | - | |
| 0.0 | 0.0 | |
| almost 3 years ago | about 5 years ago | |
| Assembly | Python | |
| GNU General Public License v3.0 only | - |
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ti84-forth
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The Zen of Forth
Forth also requires very minimal resources to implement which can be fun in constrained environments. Here it is on a TI-84+ calculator[0] or even a computer in The Powder Toy.[1]
The runtime design is a little quirky but straightforward and you can extend the system as you execute (or even change interpreter semantics), or add optimizations such as some form of JIT quite easily.
[0] https://github.com/siraben/ti84-forth
[1] https://github.com/siraben/r216-forth
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Jonesforth – A sometimes minimal FORTH compiler and tutorial (2007)
Some time ago I wrote an implementation of Forth that runs on the TI-84+ and TI-83+ calculators directly inspired by Jonesforth.[0] It runs under TI-OS as well, but the amount of available space is somewhat limited. On another implementation I wrote[1] you have full access to the calculator hardware and memory from Forth.
[0] https://github.com/siraben/ti84-forth
[1] https://github.com/siraben/zkeme80
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TI-84 Plus CE Python Graphing Calculator
On the TI-84+, assembly programs still work and it's still a test-approved device. I wrote a Forth interpreter[0] that can interop with the syscalls as well
[0] https://github.com/siraben/ti84-forth
ictf-carprey
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TI-84 Plus CE Python Graphing Calculator
TI does not ban assembly programming on their calculators. In fact, the AsmPrgm directive lets you punch in machine code in hex right on the device itself. I actually used this as the basis for a CTF challenge once: https://github.com/saagarjha/ictf-carprey
What are some alternatives?
SymPy - A computer algebra system written in pure Python
Ndless - The TI-Nspire calculator extension for native applications
calculator - Programs for the TI-84 Plus CE graphing calculator
jonesforth_riscv - Jonesforth RISC-V port.
TI84-Wordle - Wordle for the TI84 Plus CE graphing calculator.
KnightOS - OS for z80 calculators
v200 - A TI Voyage-200 emulator
zForth - zForth: tiny, embeddable, flexible, compact Forth scripting language for embedded systems
RomWBW - System Software for Z80/Z180/Z280 Computers
z80-playground-cpm-fat - CP/M for the Z80 Playground that runs on the FAT disk format