A_DM_REGISTER
__raw_writeq(1, IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_COUNT)));
while (!(__raw_readq(IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_BASE_DEBUG)))
__raw_readq(IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_BASE)));
__raw_writeq(1, IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_COUNT)));
while (!(__raw_readq(IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_BASE_DEBUG)))
__raw_readq(IOADDR(A_DM_REGISTER(cpu, R_DM_DSCR_BASE)));