/* * Linux PPC * Mimic Plan9 floating point support */ static __inline__ ulonggetfcr(void){	float fpscr; 	__asm__ __volatile__ ("mffs %0" : "=&f" (fpscr):); 	return (ulong)fpscr;} static __inline__ ulonggetfsr(void){	float fpscr; 	__asm__ __volatile__ ("mffs %0" : "=&f" (fpscr):); 	return (ulong) fpscr;} static __inline__ voidsetfsr(ulong fsr){	float t = (float) fsr; 	__asm__ __volatile__("mtfsf 0xff, %0" : : "f" (t) );} static __inline__ voidsetfcr(ulong fcr){	float t = (float) fcr; 	__asm__ __volatile__("mtfsf 0xff, %0" : : "f" (t) );} /* FPSCR */#define	FPSFX	(1<<31)	/* exception summary (sticky) */#define	FPSEX	(1<<30)	/* enabled exception summary */#define	FPSVX	(1<<29)	/* invalid operation exception summary */#define	FPSOX	(1<<28)	/* overflow exception OX (sticky) */#define	FPSUX	(1<<27)	/* underflow exception UX (sticky) */#define	FPSZX	(1<<26)	/* zero divide exception ZX (sticky) */#define	FPSXX	(1<<25)	/* inexact exception XX (sticky) */#define	FPSVXSNAN (1<<24)	/* invalid operation exception for SNaN (sticky) */#define	FPSVXISI	(1<<23)	/* invalid operation exception for ∞-∞ (sticky) */#define	FPSVXIDI	(1<<22)	/* invalid operation exception for ∞/∞ (sticky) */#define	FPSVXZDZ (1<<21)	/* invalid operation exception for 0/0 (sticky) */#define	FPSVXIMZ	(1<<20)	/* invalid operation exception for ∞*0 (sticky) */#define	FPSVXVC	(1<<19)	/* invalid operation exception for invalid compare (sticky) */#define	FPSFR	(1<<18)	/* fraction rounded */#define	FPSFI	(1<<17)	/* fraction inexact */#define	FPSFPRF	(1<<16)	/* floating point result class */#define	FPSFPCC	(0xF<<12)	/* <, >, =, unordered */#define	FPVXCVI	(1<<8)	/* enable exception for invalid integer convert (sticky) */ /* FCR */#define	FPVE	(1<<7)	/* invalid operation exception enable */#define	FPOVFL	(1<<6)	/* enable overflow exceptions */#define	FPUNFL	(1<<5)	/* enable underflow */#define	FPZDIV	(1<<4)	/* enable zero divide */#define	FPINEX	(1<<3)	/* enable inexact exceptions */#define	FPRMASK	(3<<0)	/* rounding mode */#define	FPRNR	(0<<0)#define	FPRZ	(1<<0)#define	FPRPINF	(2<<0)#define	FPRNINF	(3<<0)#define	FPPEXT	0#define	FPPSGL	0#define	FPPDBL	0#define	FPPMASK	0#define	FPINVAL	FPVE/* FSR */#define	FPAOVFL	FPSOX#define	FPAINEX	FPSXX#define	FPAUNFL	FPSUX#define	FPAZDIV	FPSZX#define	FPAINVAL	FPSVX