Z80 Status Flag registers
cpu-registers, z80
Solution
They are completely different. Alt-F is simply the flag register for the Alt-set.
Problem
This will very likely look like a very simple question to some, but when looking at the following register schema: and considering that the 'general' flag register is an 8-bit representation of the flag bits, I'm wondering: Does the 'alternate' F' register always point to the exact same flag bits, or can it contain a different byte in any way (I know alternate registers can not be directly accessed but only be swapped in). In other words, are the byte contents of 'general' register F content always equal to 'alternate' register F' (representing the same unique flag bits - assuming the 'swap the alternate register' instruction does not alter the flag bits) ?