decode_exc.c File Reference

#include <linux/kernel.h>
#include "float.h"
#include "sgl_float.h"
#include "dbl_float.h"
#include "cnv_float.h"
#include <asm/signal.h>
#include <asm/siginfo.h>

Go to the source code of this file.

Macros
#define	Fpustatus_register   Fpu_register[0]
#define	DOESTRAP   1
#define	NOTRAP   0
#define	SIGNALCODE(signal, code)   ((signal) << 24 | (code))
#define	copropbit   1<<31-2 /* bit position 2 */
#define	opclass   9 /* bits 21 & 22 */
#define	df   13 /* bits 17 & 18 */
#define	twobits   3 /* mask low-order 2 bits */
#define	fivebits   31 /* mask low-order 5 bits */
#define	MAX_EXCP_REG   7 /* number of excpeption registers to check */
#define	Excp_type(index)   Exceptiontype(Fpu_register[index])
#define	Excp_instr(index)   Instructionfield(Fpu_register[index])
#define	Clear_excp_register(index)   Allexception(Fpu_register[index]) = 0
#define	Excp_format()   (current_ir >> ((current_ir>>opclass & twobits)==1 ? df : fmt) & twobits)
#define	Fpu_sgl(index)   Fpu_register[index*2]
#define	Fpu_dblp1(index)   Fpu_register[index*2]
#define	Fpu_dblp2(index)   Fpu_register[(index*2)+1]
#define	Fpu_quadp1(index)   Fpu_register[index*2]
#define	Fpu_quadp2(index)   Fpu_register[(index*2)+1]
#define	Fpu_quadp3(index)   Fpu_register[(index*2)+2]
#define	Fpu_quadp4(index)   Fpu_register[(index*2)+3]
#define	update_trap_counts(Fpu_register, aflags, bflags, trap_counts)
: Name of the class.
struct class - device classes : The module owner. : Default attributes of this class. : Default attributes of the devices belong to the class. : Default binary attributes of the devices belong to the class. : The kobject that represents this class and links it into the hierarchy. : Called when a device is added, removed from this class, or a few other things that generate uevents to add the environment variables. : Callback to provide the devtmpfs. : Called to release this class. : Called to release the device. : Used to put the device to sleep mode, usually to a low power state. : Used to bring the device from the sleep mode. : Callbacks so sysfs can detemine namespaces.
#define	fmt   11 /* bits 19 & 20 */

Functions
u_int	decode_fpu (unsigned int Fpu_register[], unsigned int trap_counts[])

Macro Definition Documentation

#define Clear_excp_register

(

index

)

Allexception(Fpu_register[index]) = 0

Definition at line 71 of file decode_exc.c.

#define copropbit   1<<31-2 /* bit position 2 */

Definition at line 60 of file decode_exc.c.

#define df   13 /* bits 17 & 18 */

Definition at line 63 of file decode_exc.c.

#define DOESTRAP   1

Definition at line 57 of file decode_exc.c.

#define Excp_format

(

)

(current_ir >> ((current_ir>>opclass & twobits)==1 ? df : fmt) & twobits)

Definition at line 72 of file decode_exc.c.

#define Excp_instr

(

index

)

Instructionfield(Fpu_register[index])

Definition at line 70 of file decode_exc.c.

#define Excp_type

(

index

)

Exceptiontype(Fpu_register[index])

Definition at line 69 of file decode_exc.c.

#define fivebits   31 /* mask low-order 5 bits */

Definition at line 65 of file decode_exc.c.

int const char int const char * fmt   11 /* bits 19 & 20 */

Definition at line 62 of file decode_exc.c.

#define Fpu_dblp1

(

index

)

Fpu_register[index*2]

Definition at line 78 of file decode_exc.c.

#define Fpu_dblp2

(

index

)

Fpu_register[(index*2)+1]

Definition at line 79 of file decode_exc.c.

#define Fpu_quadp1

(

index

)

Fpu_register[index*2]

Definition at line 81 of file decode_exc.c.

#define Fpu_quadp2

(

index

)

Fpu_register[(index*2)+1]

Definition at line 82 of file decode_exc.c.

#define Fpu_quadp3

(

index

)

Fpu_register[(index*2)+2]

Definition at line 83 of file decode_exc.c.

#define Fpu_quadp4

(

index

)

Fpu_register[(index*2)+3]

Definition at line 84 of file decode_exc.c.

#define Fpu_sgl

(

index

)

Fpu_register[index*2]

Definition at line 76 of file decode_exc.c.

#define Fpustatus_register   Fpu_register[0]

Definition at line 54 of file decode_exc.c.

#define MAX_EXCP_REG   7 /* number of excpeption registers to check */

Definition at line 66 of file decode_exc.c.

#define NOTRAP   0

Definition at line 58 of file decode_exc.c.

#define opclass   9 /* bits 21 & 22 */

Definition at line 61 of file decode_exc.c.

#define SIGNALCODE	(		signal,
			code
	)		((signal) << 24 | (code))

Definition at line 59 of file decode_exc.c.

#define twobits   3 /* mask low-order 2 bits */

Definition at line 64 of file decode_exc.c.

#define update_trap_counts	(		Fpu_register,
			aflags,
			bflags,
			trap_counts
	)

Value:

{   \
    aflags=(Fpu_register[0])>>27;   /* assumes zero fill. 32 bit */ \
    Fpu_register[0] |= bflags;                  \
}

Definition at line 98 of file decode_exc.c.

Function Documentation

u_int decode_fpu	(	unsigned int	Fpu_register[],
		unsigned int	trap_counts[]
	)

Definition at line 104 of file decode_exc.c.