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NeW zEaLaNd 🙄
(programming.dev)
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this post was submitted on 26 Nov 2025
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whats nz then?
Never programmed on the z80, but a common flag in cpus is Zero or Not Zero (nz), that would be set when the result of an operation is not zero (or zero, depends on the architecture)
For example A = 0 (A being a generic register) would set Z to 1 and NZ to 0, and viceversa for A = 1
I believe it is nonzero ("jump if not zero" iirc)
http://www.z80.info/z80sflag.htm
There's no NZ flag. There's the regular Z flag like in most processors. NZ is the condition of zero not being set.
https://en.wikipedia.org/wiki/Zero_flag
It's probably a typo in the question or an actual question by human after seeing something like a JNZ instruction.
https://tutorials.eeems.ca/Z80ASM/app1c.htm