dsmarmlib.h

IXP425的BSP代码

/* dsmArmLib.h - ARM disassembler header file */

/* Copyright 1996-1997 Wind River Systems, Inc. */

/*
modification history
--------------------
01c,09oct97.jpd  added more Thumb instructions.
01b,09sep97,cdp  added more instructions.
01a,09may96,cdp  created.
*/

#ifndef	__INCdsmArmLibh
#define	__INCdsmArmLibh


#ifdef __cplusplus
extern "C" {
#endif


#include "vwModNum.h"


/* dsmLib status codes */

#define S_dsmLib_UNKNOWN_INSTRUCTION	(M_dsmLib | 1)


/*
 * Macro and definitions for simple decoding of instuctions.
 * To check an instruction, it is ANDed with the IMASK_ and
 * the result is compared with the IOP_. The macro INSTR_IS
 * does this and returns !0 to indicate a match.
 */

#define INSTR_IS(i,o) (((i)&(IMASK_##o))==(IOP_##o))

#define IMASK_BL		0x0F000000	/* BL xxx */
#define IOP_BL			0x0B000000

#define IMASK_STMDB_SPP_FP_IP_LR_PC 0xFFFFF800	/* STMDB sp!,{..fp,ip,lr,pc} */
#define IOP_STMDB_SPP_FP_IP_LR_PC   0xE92DD800

#define IMASK_SUB_FP_IP_4	0xFFFFFFFF	/* SUB fp,ip,#4 */
#define IOP_SUB_FP_IP_4		0xE24CB004

#define IMASK_SUB_FP_IP_4PLUS	0xFFFFF000	/* SUB fp,ip,#4+ */
#define IOP_SUB_FP_IP_4PLUS	0xE24CB000

#define IMASK_MOV_IP_SP		0xFFFFFFFF	/* MOV ip,sp */
#define IOP_MOV_IP_SP		0xE1A0C00D

#define IMASK_MOVXX_LR_PC	0x0FFFFFFF	/* MOVxx lr,pc */
#define IOP_MOVXX_LR_PC		0x01A0E00F

#define IMASK_STMDB_SPP_AREGS	0xFFFFFFF0	/* STMDB sp!,{a1-a4} */
#define IOP_STMDB_SPP_AREGS	0xE92D0000

#define IMASK_SUB_SP_SP		0xFFFFF000	/* SUB sp,sp,#n */
#define IOP_SUB_SP_SP		0xE24DD000

#define	IMASK_MOVS_PC_LR	0xFFFFFFFF	/* MOVS pc,lr */
#define IOP_MOVS_PC_LR		0xE1B0F00E


/* Thumb instructions */

#define IMASK_T_BL0		0xF800		/* BL prefix */
#define IOP_T_BL0		0xF000

#define IMASK_T_BL1		0xF800		/* BL */
#define IOP_T_BL1		0xF800

#define IMASK_T_MOV_LR_PC	0xFFFF		/* MOV lr,pc */
#define IOP_T_MOV_LR_PC		0x46FE

#define IMASK_T_SUB_SP_16	0xFFFF		/* SUB sp,#16 */
#define IOP_T_SUB_SP_16		0xB084

#define IMASK_T_MOV_FP_LO	0xFFC7		/* MOV fp,loreg */
#define	IOP_T_MOV_FP_LO		0x4683

#define IMASK_T_MOV_SP_LO	0xFFC7		/* MOV sp,loreg */
#define	IOP_T_MOV_SP_LO		0x4685

#define IMASK_T_ADD_LO_SP	0xF800		/* ADD loreg, sp, #Imm */
#define IOP_T_ADD_LO_SP		0xA800

#define IMASK_T_POP_LO		0xFF00		/* POP {reglist} (not PC) */
#define IOP_T_POP_LO		0xBC00

#define IMASK_T_PUSH_LO		0xFF00		/* PUSH {reglist} (not LR) */
#define IOP_T_PUSH_LO		0xB400

#define IMASK_T_PUSH		0xFF00		/* PUSH {reglist} (inc LR) */
#define IOP_T_PUSH		0xB500

#define IMASK_T_BX_LO		0xFFC0		/* BX loreg */
#define IOP_T_BX_LO		0x4700

#define IMASK_T_MOV_LO_PC	0xFFF8		/* MOV loreg,pc */
#define IOP_T_MOV_LO_PC		0x4678

#define IMASK_T_MOV_LO_FP	0xFFF8		/* MOV loreg,fp */
#define IOP_T_MOV_LO_FP		0x4658


IMPORT int dsmNbytes(FAST INSTR *binInst);
IMPORT int dsmInst(FAST INSTR *binInst, int address, VOIDFUNCPTR prtAddress);


#ifndef	_ASMLANGUAGE
#endif	/* _ASMLANGUAGE */


#ifdef __cplusplus
}
#endif

#endif	/* __INCdsmArmLibh */