diff options
Diffstat (limited to 'sysdeps/powerpc/fpu_control.h')
-rw-r--r-- | sysdeps/powerpc/fpu_control.h | 39 |
1 files changed, 4 insertions, 35 deletions
diff --git a/sysdeps/powerpc/fpu_control.h b/sysdeps/powerpc/fpu_control.h index e0c5cf6534..e88d81640d 100644 --- a/sysdeps/powerpc/fpu_control.h +++ b/sysdeps/powerpc/fpu_control.h @@ -19,6 +19,10 @@ #ifndef _FPU_CONTROL_H #define _FPU_CONTROL_H +#if defined __SPE__ || (defined __NO_FPRS__ && !defined _SOFT_FLOAT) +# error "SPE/e500 is no longer supported" +#endif + #ifdef _SOFT_FLOAT # define _FPU_RESERVED 0xffffffff @@ -28,41 +32,6 @@ typedef unsigned int fpu_control_t; # define _FPU_SETCW(cw) (void) (cw) extern fpu_control_t __fpu_control; -#elif defined __NO_FPRS__ /* e500 */ - -/* rounding control */ -# define _FPU_RC_NEAREST 0x00 /* RECOMMENDED */ -# define _FPU_RC_DOWN 0x03 -# define _FPU_RC_UP 0x02 -# define _FPU_RC_ZERO 0x01 - -/* masking of interrupts */ -# define _FPU_MASK_ZM 0x10 /* zero divide */ -# define _FPU_MASK_OM 0x04 /* overflow */ -# define _FPU_MASK_UM 0x08 /* underflow */ -# define _FPU_MASK_XM 0x40 /* inexact */ -# define _FPU_MASK_IM 0x20 /* invalid operation */ - -# define _FPU_RESERVED 0x00c10080 /* These bits are reserved and not changed. */ - -/* Correct IEEE semantics require traps to be enabled at the hardware - level; the kernel then does the emulation and determines whether - generation of signals from those traps was enabled using prctl. */ -# define _FPU_DEFAULT 0x0000003c /* Default value. */ -# define _FPU_IEEE _FPU_DEFAULT - -/* Type of the control word. */ -typedef unsigned int fpu_control_t; - -/* Macros for accessing the hardware control word. */ -# define _FPU_GETCW(cw) \ - __asm__ volatile ("mfspefscr %0" : "=r" (cw)) -# define _FPU_SETCW(cw) \ - __asm__ volatile ("mtspefscr %0" : : "r" (cw)) - -/* Default control word set at startup. */ -extern fpu_control_t __fpu_control; - #else /* PowerPC 6xx floating-point. */ /* rounding control */ |