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Hi,
I have a Philips RD2 board with a memory mapped 8255 with ports A at 8000H, B at 8001H, C at 8002H and a control port at 8003H.
How do I set up my defines so that I can just refer to these memory mapped ports as PORTA, CTRLPRT etc. in a C program?
Muz
"I overlooked the _at_ thingy thinking that there may be some fancy way of adressing the port"
It's not a port - it's just a memory address.
That's why it's called "memory-mapped"