1/* 2 * Disassemble s390 instructions. 3 * 4 * Copyright IBM Corp. 2007 5 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com), 6 */ 7 8#ifndef __ASM_S390_DIS_H__ 9#define __ASM_S390_DIS_H__ 10 11/* Type of operand */ 12#define OPERAND_GPR 0x1 /* Operand printed as %rx */ 13#define OPERAND_FPR 0x2 /* Operand printed as %fx */ 14#define OPERAND_AR 0x4 /* Operand printed as %ax */ 15#define OPERAND_CR 0x8 /* Operand printed as %cx */ 16#define OPERAND_VR 0x10 /* Operand printed as %vx */ 17#define OPERAND_DISP 0x20 /* Operand printed as displacement */ 18#define OPERAND_BASE 0x40 /* Operand printed as base register */ 19#define OPERAND_INDEX 0x80 /* Operand printed as index register */ 20#define OPERAND_PCREL 0x100 /* Operand printed as pc-relative symbol */ 21#define OPERAND_SIGNED 0x200 /* Operand printed as signed value */ 22#define OPERAND_LENGTH 0x400 /* Operand printed as length (+1) */ 23 24 25struct s390_operand { 26 int bits; /* The number of bits in the operand. */ 27 int shift; /* The number of bits to shift. */ 28 int flags; /* One bit syntax flags. */ 29}; 30 31struct s390_insn { 32 const char name[5]; 33 unsigned char opfrag; 34 unsigned char format; 35}; 36 37 38static inline int insn_length(unsigned char code) 39{ 40 return ((((int) code + 64) >> 7) + 1) << 1; 41} 42 43void show_code(struct pt_regs *regs); 44void print_fn_code(unsigned char *code, unsigned long len); 45int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len); 46struct s390_insn *find_insn(unsigned char *code); 47 48static inline int is_known_insn(unsigned char *code) 49{ 50 return !!find_insn(code); 51} 52 53#endif /* __ASM_S390_DIS_H__ */ 54