CODEWITHSUNDEEP
cpointers
SchmongHaggage
SchmongHaggage

Reputation: 3

How do I use an int as an address for a pointer?

Heyo everyone,

Lets say I got a register SP, in which is stored some int (more specific in form of uint8_t).

Now I want to use that int as an address for a pointer.

How exactly would I do that? I've searched nearly everywhere and didn't find a solution...

Upvotes: 0

Views: 41

Answers (1)

klutt
klutt

Reputation: 31399

It's not something you want to do under normal circumstances, since it can easily cause undefined behavior if you don't know what you're doing.

But you can do something like this:

uint8_t address;
// Do something to address
char *ptr = (char*)address;

or if you want to skip an intermediate pointer:

uint8_t address;
// Do something to address
char c = *(char*)address;

Change char for whatever type you want.

Upvotes: 1

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