"h0s7 5uXz0r5! c4N'7 c0Nn3<7 l0l0l0l0l l4m3R !!!".Īnd reset the current connection to the last successful one (stdin/stdout if there were no previous successful connections). If a connection can't be opened, l33t will return the error message: Reads the 6 bytes starting with the memory pointer (the first 4 bytes specifying an IP in the format 127.0.0.1, and the last 2 bytes combining to make a 16-bit port number * ),Īnd opens a connection if possible. Adds 2 to the instruction pointer.ĭecrement value of the byte under memory pointer by (next word+1). Increment value of the byte under memory pointer by (next word+1). Subtracts 2 from the instruction pointer. Move memory pointer backward by (next word+1) bytes. Move memory pointer forward by (next word+1) bytes. If the byte under the memory pointer does equal zero, EIF simply increments the instruction pointer. Moves the instruction pointer backwards to the command following the matching IF, if the byte under the memory pointer is not equal to zero. If the byte under the memory pointer does not equal zero, IF simply increments the instruction pointer. Moves the instruction pointer forward to the command following the matching EIF, if the byte under the memory pointer is equal to zero. Reads a character from the current connection (see CON) and writes it to the byte currently under the memory pointer. Writes the ASCII values of the byte under the memory pointer to the current connection (see CON). No Operation, except to increment the instruction pointer. Similarly, the instruction pointer will continue incrementing or jumping until it encounters an END, so code can be generated at runtime and subsequently executed. ![]() Memory pointers can also be moved into the area of memory occupied by the instructions, so code can be self modified at runtime. Memory "wraps": incrementing the memory and the instruction pointer past 64K will cause it to run around to byte 0, and vice versa. The memory pointer starts at the first byte after the instructions. The instruction pointer will keep incrementing until it encounters an END. The l33t interpreter tokenizes all the words in the source to create a sequence of numerical opcodes, and places them in order into the memory block, starting at byte 0. The language uses a 64K block of memory, and 2 pointers - a memory pointer and an instruction pointer. It is not necessary to use anything but digits in the code. The language uses 10 opcodes and each word in the source code is translated into an opcode by adding all the digits in the word together, e.g. The source code is in "l33t 5p34k" and words are separated by spaces or carriage returns. The basic data unit of 元3t is the unsigned byte ( big-endian), which can represent ASCII values and numbers in the range 0-255. Software written in the language can make network connections and may therefore be used to write malware. ![]() It is Turing-complete and has the possibility for self-modifying code. 元3t was designed by Stephen McGreal and Alex Mole to be as confusing as possible. Leet (or 元3t) is an esoteric programming language based loosely on Brainfuck and named for the resemblance of its source code to the symbolic language " 元3t 5p34k". JSTOR ( April 2014) ( Learn how and when to remove this template message). ![]() Unsourced material may be challenged and removed.įind sources: "Leet" programming language – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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