Release 4.14 arch/s390/include/asm/dis.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Disassemble s390 instructions.
 *
 * Copyright IBM Corp. 2007
 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
 */

#ifndef __ASM_S390_DIS_H__

#define __ASM_S390_DIS_H__

/* Type of operand */

#define OPERAND_GPR	0x1	
/* Operand printed as %rx */

#define OPERAND_FPR	0x2	
/* Operand printed as %fx */

#define OPERAND_AR	0x4	
/* Operand printed as %ax */

#define OPERAND_CR	0x8	
/* Operand printed as %cx */

#define OPERAND_VR	0x10	
/* Operand printed as %vx */

#define OPERAND_DISP	0x20	
/* Operand printed as displacement */

#define OPERAND_BASE	0x40	
/* Operand printed as base register */

#define OPERAND_INDEX	0x80	
/* Operand printed as index register */

#define OPERAND_PCREL	0x100	
/* Operand printed as pc-relative symbol */

#define OPERAND_SIGNED	0x200	
/* Operand printed as signed value */

#define OPERAND_LENGTH	0x400	
/* Operand printed as length (+1) */



struct s390_operand {
	
int bits;		/* The number of bits in the operand. */
	
int shift;		/* The number of bits to shift. */
	
int flags;		/* One bit syntax flags. */
};


struct s390_insn {
	
const char name[5];
	
unsigned char opfrag;
	
unsigned char format;
};




static inline int insn_length(unsigned char code)
{
	return ((((int) code + 64) >> 7) + 1) << 1;
}

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struct pt_regs;

void show_code(struct pt_regs *regs);
void print_fn_code(unsigned char *code, unsigned long len);
int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
struct s390_insn *find_insn(unsigned char *code);



static inline int is_known_insn(unsigned char *code)
{
	return !!find_insn(code);
}

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#endif /* __ASM_S390_DIS_H__ */
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Heiko Carstens
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Martin Schwidefsky
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Greg Kroah-Hartman
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16.67%
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Directory: arch/s390/include/asm

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