IRQ for 6502

From: Ruud Baltissen (
Date: 2001-08-20 15:58:43

Hallo allemaal,

The SRC revealed that the unused port A is read to clear the IRQ caused by
the ATN line. I can disable IRQ with the instruction SEI. If during the time
IRQ that is disabled an ATN shows up, the IRQ-input of the 6502 is negated.
Question: if I enable IRQ again with CLI, will this IRQ still be handled?

AFAIK the answer is "Yes", but I want a conformation please.
  / __|__
 / /  |_/     Groetjes, Ruud
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