DBCR0_IAC2
#define DBCR0_ACTIVE_EVENTS (DBCR0_ICMP | DBCR0_IAC1 | DBCR0_IAC2 | \
int slot2_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC2) != 0);
child->thread.debug.dbcr0 |= DBCR0_IAC2;
if ((child->thread.debug.dbcr0 & DBCR0_IAC2) == 0)
child->thread.debug.dbcr0 &= ~DBCR0_IAC2;
current->thread.debug.dbcr0 &= ~DBCR0_IAC2;
dbg_reg->dbcr0 |= DBCR0_IAC2;
DBCR0_IAC1 | DBCR0_IAC2 | DBCR0_IAC3 | DBCR0_IAC4 |