X87_CW_RC
rcpc_exc = arc4random() & (X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC);
s.s87_cw &= ~(X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC);
if ((s1.s87_cw & (X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC)) !=
(s.s87_cw & (X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC))) {
(X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC)));
rcpc_exc = arc4random() & (X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC);
s.s87_cw &= ~(X87_CW_RC | X87_CW_PC | X87_CW_SW_EXC);