math.c File Reference

#include <linux/types.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/uaccess.h>
#include <asm/lowcore.h>
#include <asm/sfp-util.h>
#include <math-emu/soft-fp.h>
#include <math-emu/single.h>
#include <math-emu/double.h>
#include <math-emu/quad.h>

Go to the source code of this file.

Data Structures
union	mathemu_ldcv

Macros
#define	_FP_TO_FPINT_ROUND(fs, wc, X)
#define	FP_TO_FPINT_ROUND_S(X)   _FP_TO_FPINT_ROUND(S,1,X)
#define	FP_TO_FPINT_ROUND_D(X)   _FP_TO_FPINT_ROUND(D,2,X)
#define	FP_TO_FPINT_ROUND_Q(X)   _FP_TO_FPINT_ROUND(Q,4,X)
#define	mathemu_put_user(x, p)
#define	mathemu_get_user(x, p)
#define	mathemu_copy_from_user(d, s, n)
#define	mathemu_copy_to_user(d, s, n)

Functions
int	math_emu_b3 (__u8 *opcode, struct pt_regs *regs)
int	math_emu_ed (__u8 *opcode, struct pt_regs *regs)
int	math_emu_ldr (__u8 *opcode)
int	math_emu_ler (__u8 *opcode)
int	math_emu_ld (__u8 *opcode, struct pt_regs *regs)
int	math_emu_le (__u8 *opcode, struct pt_regs *regs)
int	math_emu_std (__u8 *opcode, struct pt_regs *regs)
int	math_emu_ste (__u8 *opcode, struct pt_regs *regs)
int	math_emu_lfpc (__u8 *opcode, struct pt_regs *regs)
int	math_emu_stfpc (__u8 *opcode, struct pt_regs *regs)
int	math_emu_srnm (__u8 *opcode, struct pt_regs *regs)
long long	__negdi2 (long long u)

Macro Definition Documentation

#define _FP_TO_FPINT_ROUND	(		fs,
			wc,
			X
	)

Value:

do {                                    \
    switch (X##_c)                          \
      {                                 \
      case FP_CLS_NORMAL:                       \
        if (X##_e > _FP_FRACBITS_##fs + _FP_EXPBIAS_##fs)       \
          { /* floating point number has no bits after the dot. */  \
          }                             \
        else if (X##_e <= _FP_FRACBITS_##fs + _FP_EXPBIAS_##fs &&   \
                 X##_e > _FP_EXPBIAS_##fs)              \
      { /* some bits before the dot, some after it. */      \
            _FP_FRAC_SRS_##wc(X, _FP_WFRACBITS_##fs,            \
                              X##_e - _FP_EXPBIAS_##fs          \
                              + _FP_FRACBITS_##fs);         \
        _FP_ROUND(wc, X);                       \
        _FP_FRAC_SLL_##wc(X, X##_e - _FP_EXPBIAS_##fs       \
                              + _FP_FRACBITS_##fs);         \
          }                             \
        else                                \
          { /* all bits after the dot. */               \
        FP_SET_EXCEPTION(FP_EX_INEXACT);                \
            X##_c = FP_CLS_ZERO;                    \
      }                             \
        break;                              \
      case FP_CLS_NAN:                          \
      case FP_CLS_INF:                          \
      case FP_CLS_ZERO:                         \
        break;                              \
      }                                 \
  } while (0)

Definition at line 26 of file math.c.

#define FP_TO_FPINT_ROUND_D

(

X

)

_FP_TO_FPINT_ROUND(D,2,X)

Definition at line 58 of file math.c.

#define FP_TO_FPINT_ROUND_Q

(

X

)

_FP_TO_FPINT_ROUND(Q,4,X)

Definition at line 59 of file math.c.

#define FP_TO_FPINT_ROUND_S

(

X

)

_FP_TO_FPINT_ROUND(S,1,X)

Definition at line 57 of file math.c.

#define mathemu_copy_from_user	(		d,
			s,
			n
	)

Value:

do { \
                if (copy_from_user((d),(s),(n)) != 0) \
                        return SIGSEGV; \
        } while (0)

Definition at line 85 of file math.c.

#define mathemu_copy_to_user	(		d,
			s,
			n
	)

Value:

do { \
                if (copy_to_user((d),(s),(n)) != 0) \
                        return SIGSEGV; \
        } while (0)

Definition at line 91 of file math.c.

#define mathemu_get_user	(		x,
			p
	)

Value:

do { \
                if (get_user((x),(p))) \
                        return SIGSEGV; \
        } while (0)

Definition at line 79 of file math.c.

#define mathemu_put_user	(		x,
			p
	)

Value:

do { \
                if (put_user((x),(p))) \
                        return SIGSEGV; \
        } while (0)

Definition at line 73 of file math.c.

Function Documentation

long long __negdi2

(

long long

u

)

Definition at line 2237 of file math.c.

int math_emu_b3	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 1613 of file math.c.

int math_emu_ed	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 1887 of file math.c.

int math_emu_ld	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2144 of file math.c.

int math_emu_ldr

(

__u8 *

opcode

)

Definition at line 2084 of file math.c.

int math_emu_le	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2157 of file math.c.

int math_emu_ler

(

__u8 *

opcode

)

Definition at line 2114 of file math.c.

int math_emu_lfpc	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2198 of file math.c.

int math_emu_srnm	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2225 of file math.c.

int math_emu_std	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2171 of file math.c.

int math_emu_ste	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2184 of file math.c.

int math_emu_stfpc	(	__u8 *	opcode,
		struct pt_regs *	regs
	)

Definition at line 2213 of file math.c.