3 ms·
...But is it better than the Z80, which doesn't always have to push its registers at all?
by qwertyuiop924 10y ago
...But is it better than the Z80, which doesn't always have to push its registers at all?
- ksherlock 10y ago65816 interrupts take 7 cycles when emulating a 6502, 8 when native. z80 seems to take 11-19 depending on what kind of interrupt it is. Of course, there's also an instruction to wait for an interrupt which takes 1 cycle to wake up after the interrupt.