emulate_stw
ret = emulate_stw(regs, R2(regs->iir), 0);
ret = emulate_stw(regs, FR3(regs->iir), 1);
ret = emulate_stw(regs, R2(regs->iir),1);
ret = emulate_stw(regs, R2(regs->iir),0);
ret = emulate_stw(regs, R2(regs->iir),0);