rdr6
pcb->pcb_dbregs->dr[6] = rdr6();
pcb->pcb_dbregs->dr[6] = rdr6();
dr6 = rdr6();
initdbstate.dr[6] = rdr6();
ldr6(rdr6() & ~X86_BREAKPOINT_CONDITION_DETECTED);
cpudata->drs[NVMM_X64_DR_DR6] = rdr6();