I use a word ->list that creates and returns an address. I don't always need to associate this address with a variable name, but I'd like that to be possible.
For the moment, if I want to do so, this look like this:
.s <0> ok
1 2 3 3 ->list .s <1> 140318466418488 ok
VARIABLE mylist ok
mylist ! .s <0> ok
mylist @ . 140318466418488 ok
mylist @ @ . 1 ok
mylist @ 1 cells + @ . 2 ok
...
This provides an indirect addressing to access elements in ->list adress.
Is it possible to create a variable which address is an already known address?
To associate a number (an address as well as any other number) with a name you can use constant. In your case:
1 2 3 3 ->list constant mylist
mylist @ . \ "1"
Is it possible to create a variable which address is an already known address?
In Forth, a variable is actually a constant that returns an address.
For example, the word variable can be defined as follows:
: variable ( "name" -- )
align here 0 , constant
;
So if you have the address of an already reserved cell, you can just use constant. For example:
align here 123 , constant myvar
myvar @ . \ "123"
456 myvar !
myvar @ . \ "456"