BRK BRK Force Break BRK Operation: Forced Interrupt; N Z C I D V PC + 2 to Stack, P to Stack . . . 1 . . (Ref: 9.11) +----------------+-----------------------+---------+---------+----------+ | Addressing Mode| Assembly Language Form| OP CODE |No. Bytes|No. Cycles| +----------------+-----------------------+---------+---------+----------+ | Implied | BRK | $00 | 1 | 7 | +----------------+-----------------------+---------+---------+----------+ 1. A BRK command cannot be masked by setting I.