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/*
* 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_DISP 0x10 /* Operand printed as displacement */
#define OPERAND_BASE 0x20 /* Operand printed as base register */
#define OPERAND_INDEX 0x40 /* Operand printed as index register */
#define OPERAND_PCREL 0x80 /* Operand printed as pc-relative symbol */
#define OPERAND_SIGNED 0x100 /* Operand printed as signed value */
#define OPERAND_LENGTH 0x200 /* 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;
}
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);
}
#endif /* __ASM_S390_DIS_H__ */