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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef ARMV4_5_H
#define ARMV4_5_H
#include "register.h"
#include "target.h"
enum armv4_5_mode
{
ARMV4_5_MODE_USR = 16,
ARMV4_5_MODE_FIQ = 17,
ARMV4_5_MODE_IRQ = 18,
ARMV4_5_MODE_SVC = 19,
ARMV4_5_MODE_ABT = 23,
ARMV4_5_MODE_UND = 27,
ARMV4_5_MODE_SYS = 31,
ARMV4_5_MODE_ANY = -1
};
extern char* armv4_5_mode_strings[];
enum armv4_5_state
{
ARMV4_5_STATE_ARM,
ARMV4_5_STATE_THUMB,
ARMV4_5_STATE_JAZELLE,
};
extern char* armv4_5_state_strings[];
extern int armv4_5_core_reg_map[7][17];
#define ARMV4_5_CORE_REG_MODE(cache, mode, num) \
cache->reg_list[armv4_5_core_reg_map[armv4_5_mode_to_number(mode)][num]]
#define ARMV4_5_CORE_REG_MODENUM(cache, mode, num) \
cache->reg_list[armv4_5_core_reg_map[mode][num]]
/* offsets into armv4_5 core register cache */
enum
{
ARMV4_5_CPSR = 31,
ARMV4_5_SPSR_FIQ = 32,
ARMV4_5_SPSR_IRQ = 33,
ARMV4_5_SPSR_SVC = 34,
ARMV4_5_SPSR_ABT = 35,
ARMV4_5_SPSR_UND = 36
};
#define ARMV4_5_COMMON_MAGIC 0x0A450A45
typedef struct armv4_5_common_s
{
int common_magic;
reg_cache_t *core_cache;
enum armv4_5_mode core_mode;
enum armv4_5_state core_state;
int (*full_context)(struct target_s *target);
int (*read_core_reg)(struct target_s *target, int num, enum armv4_5_mode mode);
int (*write_core_reg)(struct target_s *target, int num, enum armv4_5_mode mode, u32 value);
void *arch_info;
} armv4_5_common_t;
typedef struct armv4_5_algorithm_s
{
int common_magic;
enum armv4_5_mode core_mode;
enum armv4_5_state core_state;
} armv4_5_algorithm_t;
typedef struct armv4_5_core_reg_s
{
int num;
enum armv4_5_mode mode;
target_t *target;
armv4_5_common_t *armv4_5_common;
} armv4_5_core_reg_t;
extern reg_cache_t* armv4_5_build_reg_cache(target_t *target, armv4_5_common_t *armv4_5_common);
extern enum armv4_5_mode armv4_5_number_to_mode(int number);
extern int armv4_5_mode_to_number(enum armv4_5_mode mode);
extern int armv4_5_arch_state(struct target_s *target, char *buf, int buf_size);
extern int armv4_5_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_size);
extern int armv4_5_invalidate_core_regs(target_t *target);
extern int armv4_5_register_commands(struct command_context_s *cmd_ctx);
extern int armv4_5_init_arch_info(target_t *target, armv4_5_common_t *armv4_5);
extern int armv4_5_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info);
extern int armv4_5_invalidate_core_regs(target_t *target);
/* ARM mode instructions
*/
/* Store multiple increment after
* Rn: base register
* List: for each bit in list: store register
* S: in priviledged mode: store user-mode registers
* W=1: update the base register. W=0: leave the base register untouched
*/
#define ARMV4_5_STMIA(Rn, List, S, W) (0xe8800000 | (S << 22) | (W << 21) | (Rn << 16) | (List))
/* Load multiple increment after
* Rn: base register
* List: for each bit in list: store register
* S: in priviledged mode: store user-mode registers
* W=1: update the base register. W=0: leave the base register untouched
*/
#define ARMV4_5_LDMIA(Rn, List, S, W) (0xe8900000 | (S << 22) | (W << 21) | (Rn << 16) | (List))
/* MOV r8, r8 */
#define ARMV4_5_NOP (0xe1a08008)
/* Move PSR to general purpose register
* R=1: SPSR R=0: CPSR
* Rn: target register
*/
#define ARMV4_5_MRS(Rn, R) (0xe10f0000 | (R << 22) | (Rn << 12))
/* Store register
* Rd: register to store
* Rn: base register
*/
#define ARMV4_5_STR(Rd, Rn) (0xe5800000 | (Rd << 12) | (Rn << 16))
/* Load register
* Rd: register to load
* Rn: base register
*/
#define ARMV4_5_LDR(Rd, Rn) (0xe5900000 | (Rd << 12) | (Rn << 16))
/* Move general purpose register to PSR
* R=1: SPSR R=0: CPSR
* Field: Field mask
* 1: control field 2: extension field 4: status field 8: flags field
* Rm: source register
*/
#define ARMV4_5_MSR_GP(Rm, Field, R) (0xe120f000 | Rm | (Field << 16) | (R << 22))
#define ARMV4_5_MSR_IM(Im, Rotate, Field, R) (0xe320f000 | (Im) | (Rotate << 8) | (Field << 16) | (R << 22))
/* Load Register Halfword Immediate Post-Index
* Rd: register to load
* Rn: base register
*/
#define ARMV4_5_LDRH_IP(Rd, Rn) (0xe0d000b2 | (Rd << 12) | (Rn << 16))
/* Load Register Byte Immediate Post-Index
* Rd: register to load
* Rn: base register
*/
#define ARMV4_5_LDRB_IP(Rd, Rn) (0xe4d00001 | (Rd << 12) | (Rn << 16))
/* Store register Halfword Immediate Post-Index
* Rd: register to store
* Rn: base register
*/
#define ARMV4_5_STRH_IP(Rd, Rn) (0xe0c000b2 | (Rd << 12) | (Rn << 16))
/* Store register Byte Immediate Post-Index
* Rd: register to store
* Rn: base register
*/
#define ARMV4_5_STRB_IP(Rd, Rn) (0xe4c00001 | (Rd << 12) | (Rn << 16))
/* Branch (and Link)
* Im: Branch target (left-shifted by 2 bits, added to PC)
* L: 1: branch and link 0: branch only
*/
#define ARMV4_5_B(Im, L) (0xea000000 | Im | (L << 24))
/* Branch and exchange (ARM state)
* Rm: register holding branch target address
*/
#define ARMV4_5_BX(Rm) (0xe12fff10 | Rm)
/* Thumb mode instructions
*/
/* Store register (Thumb mode)
* Rd: source register
* Rn: base register
*/
#define ARMV4_5_T_STR(Rd, Rn) ((0x6000 | Rd | (Rn << 3)) | ((0x6000 | Rd | (Rn << 3)) << 16))
/* Load register (Thumb state)
* Rd: destination register
* Rn: base register
*/
#define ARMV4_5_T_LDR(Rd, Rn) ((0x6800 | (Rn << 3) | Rd) | ((0x6800 | (Rn << 3) | Rd) << 16))
/* Move hi register (Thumb mode)
* Rd: destination register
* Rm: source register
*/
#define ARMV4_5_T_MOV(Rd, Rm) ((0x4600 | (Rd & 0x7) | ((Rd & 0x8) << 4) | ((Rm & 0x7) << 3) | ((Rm & 0x8) << 3)) | ((0x4600 | (Rd & 0x7) | ((Rd & 0x8) << 4) | ((Rm & 0x7) << 3) | ((Rm & 0x8) << 3)) << 16))
/* No operation (Thumb mode)
*/
#define ARMV4_5_T_NOP (0x1c3f | (0x1c3f << 16))
/* Move immediate to register (Thumb state)
* Rd: destination register
* Im: 8-bit immediate value
*/
#define ARMV4_5_T_MOV_IM(Rd, Im) ((0x2000 | (Rd << 8) | Im) | ((0x2000 | (Rd << 8) | Im) << 16))
/* Branch and Exchange
* Rm: register containing branch target
*/
#define ARMV4_5_T_BX(Rm) ((0x4700 | (Rm << 3)) | ((0x4700 | (Rm << 3)) << 16))
/* Branch (Thumb state)
* Imm: Branch target
*/
#define ARMV4_5_T_B(Imm) ((0xe000 | Imm) | ((0xe000 | Imm) << 16))
#endif /* ARMV4_5_H */
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