#x86 assembly/DOS

    org 100h

start:
    mov dx,data
    mov ah,9h
    int 21h
    push start
    ret

data:
    db "Hello World!",10,13,"$"

Did I say no reversed tail recursion? Did I?

#x86 assembly/DOS

    org 100h

start:
    mov dx,data
    mov ah,9h
    int 21h
    push start
    ret

data:
    db "Hello World!",10,13,"$"

Did I say no reversed tail recursion? Did I?

How it works

The ret instruction, used to return from a function, actually pops the return address from the stack (which normally is put there by the corresponding call) and jumps to it. Here at each iteration we push the entrypoint address on the stack before returning, thus generating an infinite loop.