Hvad er FJ-filformatet?
En .fj fil indeholder kildekode til FlipJump, et esoterisk programmeringssprog med én instruktion skabt af Tom Herman (tomhea) omkring 2021. FlipJump er en One Instruction Set Computer, eller OISC. Dens enkelte instruktion har formen a;b, som flipper bitten på adresse a og derefter hopper til adresse b. Den ene operation er nok til at gøre sproget Turing-komplet.
En .fj fil er almindelig tekst. Ved siden af rå a;b instruktioner kan den indeholde konstanter som x = 6;, labels, parametriserede makroer, rep(n, i) gentagelser, namespaces og udtryk, der beregnes ved samling (assembly-time). Projektet leveres med et standardbibliotek opdelt i bit, hex og stl namespaces med makroer til input, output, matematik og kontrolflow. Kommentarer begynder med //.
Sikkerhed og tryghed
RISIKO: LOWA .fj file is plain-text source code and cannot run on its own; it only executes when assembled and run by the FlipJump interpreter. There are no macros that touch the host OS and no embedded binaries, so opening one in an editor is safe. As with any source code, only assemble and run files from sources you trust.
Formatdetaljer
kort fortaltProgrammer der åbner FJ-filer
Windows3 apps
FlipJump (flipjump Python package)
Open-source Install with pip install flipjump, then run fj yourfile.fj to assemble and execute the program, or fj --asm yourfile.fj -o out.fjm to only assemble. 
Visual Studio Code
Gratis Open the .fj file to read and edit the FlipJump assembly with plain-text highlighting and search across the codebase. 
macOS3 apps
FlipJump (flipjump Python package)
Open-source Install with pip install flipjump, then run fj yourfile.fj in Terminal to assemble and run the program.
Visual Studio Code
Gratis Open the .fj file to edit the source and inspect the standard-library macros it references. 
Linux3 apps
FlipJump (flipjump Python package)
Open-source Install with pip install flipjump, then run fj yourfile.fj to assemble and run, or fj --run out.fjm to execute a compiled file.
Visual Studio Code
Gratis Open the .fj file to edit FlipJump assembly and manage multi-file projects.
GNU nano / Vim
Open-source Open the .fj source in a terminal editor to make quick edits before assembling with fj. Tekniske detaljer
dyb specifikation| Encoding | UTF-8 / ASCII plain text |
| Byte order | N/A (text) |
| Container | None; flat text file |
| Compression | None (source is uncompressed text) |
| Typical size | A few hundred bytes to tens of kilobytes |
| Structure | Human-readable FlipJump assembly. Each statement is the single instruction 'a;b' (flip the bit at address a, then jump to address b), with sugar forms like ';J', 'F;' and ';'. Files also contain constant definitions (x = 6;), labels (label:), macro definitions with parameters and temporary labels, rep(n, i) repetitions, namespaces, memory-segment and address-reservation directives, and assembly-time arithmetic/bitwise/logical expressions. Comments start with //. |
| Platforms | Windows, macOS, Linux |
| Notes | The standard library ships three namespaces (bit, hex, stl) with macros for I/O, math, logic, comparison, pointers, and stack/functions. The wflip operation flips multiple bits in a word at once. Source is assembled to the binary .fjm format for execution. |
| Language Paradigm | One Instruction Set Computer (OISC), esoteric |
| Toolchain | flipjump Python package providing the fj command-line assembler and interpreter |
| Udgivet | 2021 |
| Seneste version | FlipJump 1.5.0 (June 2026) |
| Specifikation | esolangs.org |
FJ-konverteringer
Fællesskabets Q&A
spurgt af brugereIngen spørgsmål endnu - vær den første til at spørge om FJ-filer.
Ofte stillede spørgsmål
Hvad er en .fj fil?
Hvordan åbner jeg en .fj fil?
pip install flipjump og køre fj dinfil.fj.Hvordan kører jeg et FlipJump-program?
fj kommandoen fra flipjump-pakken. fj hello.fj samler og kører i ét trin; fj --asm hello.fj -o hello.fjm samler kun, og fj --run hello.fjm eksekverer den kompilerede fil.Hvad er forskellen på .fj og .fjm?
.fj er den menneskeligt læsbare FlipJump-kilde, du skriver, mens .fjm er den binære FlipJump Machine-fil produceret af assembleren, som tolken kører.
