itch.io

unknown function or routine 'rnd'

Mon, 29 Jun 2026 23:42:23 GMT

Per docs:

RND() U8 Target specific pseudo-random byte.

Sadly, does not compile with 1.2:

unknown function or routine 'rnd'

(rand() works, though.)

Unclear how to pass arrays to procs & use them inside the proc

Mon, 29 Jun 2026 23:57:08 GMT

I have a 1D array of u8 and I want to write a "shuffle" proc to shuffle it like a deck of cards. As a stepping stone to this I tried something simpler:

proc shuffleArr(arr as addr of u8)
    arr[2] = 99 'just to see if I can do ANYTHING with the passed array
endproc

This doesn't compile:

 'arr' is a scalar variable, not an array or STRING; remove the index

Almost certainly user error on my part, but not clear how to proceed.

Avoid key repeats?

Wed, 24 Jun 2026 01:19:50 GMT

This runs, but when I press a key even very briefly, it tends to register 3 or more times.

@OPTION SYSTEM vic20.orig
CLS
while 1
    dim k as u8
    k = KEY()
    if k <> 0 then print k
endwhile