1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Disassemble s390 instructions.
5 * Copyright IBM Corp. 2007
6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
9 #ifndef __ASM_S390_DIS_H__
10 #define __ASM_S390_DIS_H__
13 #define OPERAND_GPR 0x1 /* Operand printed as %rx */
14 #define OPERAND_FPR 0x2 /* Operand printed as %fx */
15 #define OPERAND_AR 0x4 /* Operand printed as %ax */
16 #define OPERAND_CR 0x8 /* Operand printed as %cx */
17 #define OPERAND_VR 0x10 /* Operand printed as %vx */
18 #define OPERAND_DISP 0x20 /* Operand printed as displacement */
19 #define OPERAND_BASE 0x40 /* Operand printed as base register */
20 #define OPERAND_INDEX 0x80 /* Operand printed as index register */
21 #define OPERAND_PCREL 0x100 /* Operand printed as pc-relative symbol */
22 #define OPERAND_SIGNED 0x200 /* Operand printed as signed value */
23 #define OPERAND_LENGTH 0x400 /* Operand printed as length (+1) */
27 int bits; /* The number of bits in the operand. */
28 int shift; /* The number of bits to shift. */
29 int flags; /* One bit syntax flags. */
39 static inline int insn_length(unsigned char code)
41 return ((((int) code + 64) >> 7) + 1) << 1;
46 void show_code(struct pt_regs *regs);
47 void print_fn_code(unsigned char *code, unsigned long len);
48 int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
49 struct s390_insn *find_insn(unsigned char *code);
51 static inline int is_known_insn(unsigned char *code)
53 return !!find_insn(code);
56 #endif /* __ASM_S390_DIS_H__ */