I have some questions about z80 and xLIBC:
1. How can xLIBC get a single pixel on the screen?
2. How can it even change single pixels on the screen?
3. Is it possible to even make a kind of screen shifting routine for that?

Thanks in advance! Smile

EDIT: is there someone who could kind of port this to ASM? http://pastebin.com/uZDNftKs
That would be very awesome!! This is for the z80 using xLIBC.
Any idea? Probably something with out and in, or is it memory-mapped?
WikiTI is your friend.

By the way, I suspect that such a routine would be rather slow; I'm talking a couple tenths of a second.
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