// also be the same CR field.
#define _SETB(crxlt, crxeq, rout) \
	ISEL	crxeq,R0,R21,rout \
	ISEL	crxlt,R20,rout,rout

// A special case when it is know the comparison
// will always be not equal. The result must be -1 or 1.
#define SETB_CR0_NE(rout) \
	ISEL	CR0LT,R20,R21,rout

#define SETB_CR0(rout) _SETB(CR0LT, CR0EQ, rout)
#define SETB_CR1(rout) _SETB(CR1LT, CR1EQ, rout)
#define SETB_INIT() \
	MOVD	$-1,R20 \