Interrupt Disable

This post explains clearly what will happen to interrupts that has been disabled.

Quote:

"Often, one interrupt is "queued" by hardware.
[An interrupt is often just a logic gate that can stick on; once it's on, it stays on for a while.]
If the user hit 'a' once only during the interval when interrupts were disabled, it would register as an interrupt when they were re-enabled.
If the user somehow managed to hit 'a' twice during the interval when interrupts were disabled, one would register as an interrupt when they where enabled. Whether it was the first or the second depends on the exact logic gate configuration. "


Reference:
http://stackoverflow.com/questions/3427546/what-is-meant-by-disabling-interrupts