diff options
Diffstat (limited to 'Linux/power/include/fpuctl.h')
| -rw-r--r-- | Linux/power/include/fpuctl.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/Linux/power/include/fpuctl.h b/Linux/power/include/fpuctl.h index fd03942c..e69de29b 100644 --- a/Linux/power/include/fpuctl.h +++ b/Linux/power/include/fpuctl.h @@ -1,83 +0,0 @@ -/* - * Linux PPC - * Mimic Plan9 floating point support - */ - -static __inline__ ulong -getfcr(void) -{ - float fpscr; - - __asm__ __volatile__ ("mffs %0" : "=&f" (fpscr):); - - return (ulong)fpscr; -} - -static __inline__ ulong -getfsr(void) -{ - float fpscr; - - __asm__ __volatile__ ("mffs %0" : "=&f" (fpscr):); - - return (ulong) fpscr; -} - -static __inline__ void -setfsr(ulong fsr) -{ - float t = (float) fsr; - - __asm__ __volatile__("mtfsf 0xff, %0" : : "f" (t) ); -} - -static __inline__ void -setfcr(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 |
