Lossia

Lossia is a language made by Tetrapyronia. It uses 1 stack. All commands must be prefixed with l. Spaces can be put anywhere, including inside commands. Everything including and after the first invalid command is a end-of-line comment. (ex: l- l- Push 2 -1s to the stack <- all italics are comments)

Commands

Command	Meaning
.	If top stack item is <1, jump 1 past matching _
,	If top stack item is >1, jump 1 past matching _
_	Jump back to matching . or ,
l	Print top of stack (as a number, keeps value)
i	Print top of stack (as a Unicode character, keeps value)
L	Push input to stack
s	Pop A and B, push A-B
-	Push -1 to stack
=	If top 2 commands are equal, skip next command
[	Duplicate top of stack
x	Swap top 2 stack items

Example program: Truth-machine

l Loss l
llIIIIll

 l[  l.
 ll  l_

Online Interpreter

Lyxal made an online interpreter for this esolang. You place the code into the "code" box.