Keep-It-Simple-Syntax

KISS

Paradigm(s)	imperative, procedural
Designed by	User:Elliktronic
Appeared in	2025
Type system	dynamic, weak
Memory system	register-based (X, Y)
Dimensions	one-dimensional
Computational class	Turing complete
Reference implementation	Original KISS interpreter
Influenced by	Brainfuck, Assembly
File extension(s)	.kiss

KISS - Keep It Simple Syntax

A minimal imperative language!

Overview

KISS is an esoteric programming language designed to be absurdly minimalistic

It features:

Single variable:

x (plus a temporary y for swaps)

Simple commands:

Single letter instructions with optional args

I/O

Basic ASCII input/output

Labels & Jumps

:label 
G label

File includes

#include "file.kiss"

Syntax

A val - Assign x (number or char in )

I/D/X/M n - Increment, decrement, XOR or multiply x by n

P - Print x as number

CP/CI - Print/Read ASCII char

S n - Swap x <-> y then set x = n

Y/V - Copy x to y / y to x

E n/L n - Skip next line if x == n / x >= n

G label - Jump to :label

C/N/B - Clear, Negate, or bit-flip x
   C - Sets x to 0.
   N - Negates x (x = -x).
   B - Performs a bitwise NOT on x (x = ~x).

R n - Modulo x by n (x = x % n)

Q n - Divide x by n (x = x / n)

^ - Square x (x = x * x)

t - Square root of x (x = sqrt(x))

> n - Store x in memory location n (memory[n] = x)

< n - Load x from memory location n (x = memory[n])

? n - Assign x a random number between 0 and n-1

Examples

Loop

:loop
A 1
P
D 1
E 0
G loop

Hello world

# KISS-compliant "Hello World"
A 72    # 'H'
CP
A 101   # 'e'
CP
A 108   # 'l' (x2)
CP
CP
A 111   # 'o'
CP
A 32    # ' '
CP
A 87    # 'W'
CP
A 111   # 'o'
CP
A 114   # 'r'
CP
A 108   # 'l'
CP
A 100   # 'd'
CP
A 10    # '\n'
CP

Implemintation

• Written on C (~300 LOC)
• No loops(jumps)
• No strings and functions

Community

• GitHub

Now X is your life