RSP
MOVrq(RSP, RBP);
SUBib(BPF_MEMWORDS * sizeof(uint32_t), RSP);
MOVobd(RSP, RSI, EAX);
MOVobd(RSP, RSI, EDX);
MOVomd(EAX, RSP, RSI);
MOVomd(EDX, RSP, RSI);