For wiring Pi you need to change the start offset. for Pi3/4. The wiki is based on just Pi1/2.
The offset is different (but the same for Pi models 3 and 4) As I remember correctly there is already an entry for this.
Also note the
note here:
http://wiringpi.com/You may accidentally use the wrong version.
I have successfully used it at least on the RPi1 and RPi3 in the past. I suspect the wiki (our wiki!) is outdated.
The needed change is a one line edit. I think I answered this before.
There are three different start addresses:
RPi1 base
RPi2 base
RPi3/4 base (these are the same)
I can't access the right things now, but the start address documentation is on the raspberrypi.org website.
You only need to change the Hexadecimal value and the code should work.
I can post the correct values tomorrow if you wish,