About

can is a stack-based programming language written in Rust. It is currently at the earliest stages of its development and basically copies the syntax of Tsoding's Porth.

Features

• Arithmetic operations
• Bitwise logic operations
• Dump (print number from the top of the stack)
• if-else statements and while-loops
• Memory addressing
• Syscalls
• Macros
• C-style comments (//)
• Turing complete

Basic program

While loop that prints numbers 1 to 10

include "./std/std.can" // for dump

10 0 while 2dup > do 
    1 +
    dup dump
end

Fibonacci sequence

// prints first 10 numbers of Fibonacci sequence

include "./std/std.can"

// include offset (hack as we don't have proper memory allocation)
macro offset mem 64 + ;

macro BYTE 8 ;

macro first offset ;
macro second offset BYTE + ;
macro temp offset BYTE BYTE + + ;

first  0 !64 // first
second 1 !64 // second
temp   0 !64 // temp

20 0 while 2dup > do
    1 +
    temp first @64 second @64 + !64 // sum two numbers and put result in temp value
    first second @64 !64 // put second number in place of first
    second temp @64 !64 // put temp value in place of second
    temp @64 dump // print
end

Quick start

cargo run -- build examples/test.can && ./out
cargo run -- emulate examples/test.can