newRPL - Wiki examples for PEEK, POKE and NEWOB commands

[JoJo1973]

(09-22-2021 12:31 AM)Claudio L. Wrote:  PEEK and POKE are low-level commands, can only be used by "certain people" with "certain knowledge". It's OK if there's no examples, they simply read or write a 32-bit word at a word-aligned ARM address. They aren't meant for the general public, but mainly to aid the developers on hardware debugging. Using "some random address" you will either cause a crash (data abort exception), or corrupt your precious data.

There's something I don't understand. When you say 32-bit words at word-aligned ARM addresses you mean that e.g. 0 PEEK should read 4 bytes starting at address 0 and 1 PEEK should read 4 bytes starting at address 4 and so on, right?

Because if I've understood the code (big if ), the address should be ANDed with 0xfffffffc, not 0xffffffff, and the same applies for POKE.