RID_MASK          232 lj_asm.c             Reg r = va_arg(argp, Reg) & RID_MASK;
RID_MASK           23 lj_target.h    #define RID_INIT		(RID_NONE|RID_MASK)
RID_MASK           32 lj_target.h    #define ra_gethint(r)		((Reg)((r) & RID_MASK))
RID_MASK           51 lj_target.h      (((rs) & ~REGSP(RID_MASK, 0)) != REGSP(RID_NONE, 0))