[deliverable/binutils-gdb.git] / sim / erc32 / sis.h

/*
 * This file is part of SIS.
 * 
 * ERC32SIM, SPARC instruction simulator. Copyright (C) 1995 Jiri Gaisler,
 * European Space Agency
 * 
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 * 
 */

#include "config.h"
#include "ansidecl.h"
#include "gdb/callback.h"
#include "gdb/remote-sim.h"

#include "end.h"

#define I_ACC_EXC 1

/* Maximum events in event queue */
#define EVENT_MAX	256

/* Maximum # of floating point queue */
#define FPUQN	1

/* Maximum # of breakpoints */
#define BPT_MAX	256

struct histype {
    unsigned        addr;
    unsigned        time;
};

/* type definitions */

typedef short int int16;	/* 16-bit signed int */
typedef unsigned short int uint16;	/* 16-bit unsigned int */
typedef int     int32;		/* 32-bit signed int */
typedef unsigned int uint32;	/* 32-bit unsigned int */
typedef float   float32;	/* 32-bit float */
typedef double  float64;	/* 64-bit float */

/* FIXME: what about host compilers that don't support 64-bit ints? */
typedef unsigned long long uint64; /* 64-bit unsigned int */
typedef long long int64;	   /* 64-bit signed int */

#define UINT64_MAX 18446744073709551615ULL

struct pstate {

    float64         fd[16];	/* FPU registers */
#ifdef HOST_LITTLE_ENDIAN_FLOAT
    float32         fs[32];
    float32        *fdp;
#else
    float32        *fs;
#endif
    int32          *fsi;
    uint32          fsr;
    int32           fpstate;
    uint32          fpq[FPUQN * 2];
    uint32          fpqn;
    uint32          ftime;
    uint32          flrd;
    uint32          frd;
    uint32          frs1;
    uint32          frs2;
    uint32          fpu_pres;	/* FPU present (0 = No, 1 = Yes) */

    uint32          psr;	/* IU registers */
    uint32          tbr;
    uint32          wim;
    uint32          g[8];
    uint32          r[128];
    uint32          y;
    uint32          asr17;      /* Single vector trapping */
    uint32          pc, npc;


    uint32          trap;	/* Current trap type */
    uint32          annul;	/* Instruction annul */
    uint32          data;	/* Loaded data	     */
    uint32          inst;	/* Current instruction */
    uint32          asi;	/* Current ASI */
    uint32          err_mode;	/* IU error mode */
    uint32          breakpoint;
    uint32          bptnum;
    uint32          bphit;
    uint32          bpts[BPT_MAX];	/* Breakpoints */

    uint32          ltime;	/* Load interlock time */
    uint32          hold;	/* IU hold cycles in current inst */
    uint32          fhold;	/* FPU hold cycles in current inst */
    uint32          icnt;	/* Instruction cycles in curr inst */

    uint32          histlen;	/* Trace history management */
    uint32          histind;
    struct histype *histbuf;
    float32         freq;	/* Simulated processor frequency */


    uint64          tottime;
    uint64          ninst;
    uint64          fholdt;
    uint64          holdt;
    uint64          icntt;
    uint64          finst;
    uint64          simstart;
    uint64          starttime;
    uint64          tlimit;	/* Simulation time limit */
    uint64          pwdtime;	/* Cycles in power-down mode */
    uint64          nstore;	/* Number of load instructions */
    uint64          nload;	/* Number of store instructions */
    uint64          nannul;	/* Number of annuled instructions */
    uint64          nbranch;	/* Number of branch instructions */
    uint32          ildreg;	/* Destination of last load instruction */
    uint64          ildtime;	/* Last time point for load dependency */

    int             rett_err;	/* IU in jmpl/restore error state (Rev.0) */
    int             jmpltime;
};

struct evcell {
    void            (*cfunc) ();
    int32           arg;
    uint64          time;
    struct evcell  *nxt;
};

struct estate {
    struct evcell   eq;
    struct evcell  *freeq;
    uint64          simtime;
};

struct irqcell {
    void            (*callback) ();
    int32           arg;
};


#define OK 0
#define TIME_OUT 1
#define BPT_HIT 2
#define ERROR 3
#define CTRL_C 4

/* Prototypes  */

/* erc32.c */
extern void	init_sim PARAMS ((void));
extern void	reset PARAMS ((void));
extern void	error_mode PARAMS ((uint32 pc));
extern void	sim_halt PARAMS ((void));
extern void	exit_sim PARAMS ((void));
extern void	init_stdio PARAMS ((void));
extern void	restore_stdio PARAMS ((void));
extern int	memory_read PARAMS ((int32 asi, uint32 addr, uint32 *data,
				     int32 sz, int32 *ws));
extern int	memory_write PARAMS ((int32 asi, uint32 addr, uint32 *data,
				    int32 sz, int32 *ws));
extern int	sis_memory_write PARAMS ((uint32 addr,
				    const unsigned char *data, uint32 length));
extern int	sis_memory_read PARAMS ((uint32 addr, char *data,
					 uint32 length));

/* func.c */
extern void	set_regi PARAMS ((struct pstate *sregs, int32 reg,
				  uint32 rval));
extern void	get_regi PARAMS ((struct pstate *sregs, int32 reg, char *buf));
extern int	exec_cmd PARAMS ((struct pstate *sregs, char *cmd));
extern void	reset_stat PARAMS ((struct pstate  *sregs));
extern void	show_stat PARAMS ((struct pstate  *sregs));
extern void	init_bpt PARAMS ((struct pstate  *sregs));
extern void	init_signals PARAMS ((void));

struct disassemble_info;
extern void	dis_mem PARAMS ((uint32 addr, uint32 len,
				 struct disassemble_info *info));
extern void	event PARAMS ((void (*cfunc) (), int32 arg, uint64 delta));
extern void	set_int PARAMS ((int32 level, void (*callback) (), int32 arg));
extern void	advance_time PARAMS ((struct pstate  *sregs));
extern uint32	now PARAMS ((void));
extern int	wait_for_irq PARAMS ((void));
extern int	check_bpt PARAMS ((struct pstate *sregs));
extern void	reset_all PARAMS ((void));
extern void	sys_reset PARAMS ((void));
extern void	sys_halt PARAMS ((void));
extern int	bfd_load PARAMS ((char *fname));

/* exec.c */
extern int	dispatch_instruction PARAMS ((struct pstate *sregs));
extern int	execute_trap PARAMS ((struct pstate *sregs));
extern int	check_interrupts PARAMS ((struct pstate  *sregs));
extern void	init_regs PARAMS ((struct pstate *sregs));

/* interf.c */
extern int	run_sim PARAMS ((struct pstate *sregs,
				 uint64 icount, int dis));

/* float.c */
extern int	get_accex PARAMS ((void));
extern void	clear_accex PARAMS ((void));
extern void	set_fsr PARAMS ((uint32 fsr));

/* help.c */
extern void	usage PARAMS ((void));
extern void	gen_help PARAMS ((void));
Commit	Line	Data
c906108c SS	1	/*
	2	* This file is part of SIS.
	3	*
	4	* ERC32SIM, SPARC instruction simulator. Copyright (C) 1995 Jiri Gaisler,
	5	* European Space Agency
	6	*
	7	* This program is free software; you can redistribute it and/or modify it under
	8	* the terms of the GNU General Public License as published by the Free
3fd725ef	9	* Software Foundation; either version 3 of the License, or (at your option)
c906108c SS	10	* any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful, but WITHOUT
	13	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	14	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	15	* more details.
	16	*
	17	* You should have received a copy of the GNU General Public License along with
51b318de	18	* this program; if not, see <http://www.gnu.org/licenses/>.
c906108c SS	19	*
	20	*/
	21
9a210f30	22	#include "config.h"
c906108c	23	#include "ansidecl.h"
3c25f8c7 AC	24	#include "gdb/callback.h"
3c25f8c7 AC	25	#include "gdb/remote-sim.h"
c906108c SS	26
	27	#include "end.h"
	28
	29	#define I_ACC_EXC 1
	30
	31	/* Maximum events in event queue */
	32	#define EVENT_MAX 256
	33
	34	/* Maximum # of floating point queue */
	35	#define FPUQN 1
	36
	37	/* Maximum # of breakpoints */
	38	#define BPT_MAX 256
	39
	40	struct histype {
	41	unsigned addr;
	42	unsigned time;
	43	};
	44
	45	/* type definitions */
	46
	47	typedef short int int16; /* 16-bit signed int */
	48	typedef unsigned short int uint16; /* 16-bit unsigned int */
	49	typedef int int32; /* 32-bit signed int */
	50	typedef unsigned int uint32; /* 32-bit unsigned int */
	51	typedef float float32; /* 32-bit float */
	52	typedef double float64; /* 64-bit float */
	53
	54	/* FIXME: what about host compilers that don't support 64-bit ints? */
2464c810 JB	55	typedef unsigned long long uint64; /* 64-bit unsigned int */
	56	typedef long long int64; /* 64-bit signed int */
	57
	58	#define UINT64_MAX 18446744073709551615ULL
c906108c SS	59
	60	struct pstate {
	61
	62	float64 fd[16]; /* FPU registers */
	63	#ifdef HOST_LITTLE_ENDIAN_FLOAT
	64	float32 fs[32];
	65	float32 *fdp;
	66	#else
	67	float32 *fs;
	68	#endif
	69	int32 *fsi;
	70	uint32 fsr;
	71	int32 fpstate;
	72	uint32 fpq[FPUQN * 2];
	73	uint32 fpqn;
	74	uint32 ftime;
	75	uint32 flrd;
	76	uint32 frd;
	77	uint32 frs1;
	78	uint32 frs2;
	79	uint32 fpu_pres; /* FPU present (0 = No, 1 = Yes) */
	80
	81	uint32 psr; /* IU registers */
	82	uint32 tbr;
	83	uint32 wim;
	84	uint32 g[8];
	85	uint32 r[128];
	86	uint32 y;
	87	uint32 asr17; /* Single vector trapping */
	88	uint32 pc, npc;
	89
	90
	91	uint32 trap; /* Current trap type */
	92	uint32 annul; /* Instruction annul */
	93	uint32 data; /* Loaded data */
	94	uint32 inst; /* Current instruction */
	95	uint32 asi; /* Current ASI */
	96	uint32 err_mode; /* IU error mode */
	97	uint32 breakpoint;
	98	uint32 bptnum;
	99	uint32 bphit;
	100	uint32 bpts[BPT_MAX]; /* Breakpoints */
	101
	102	uint32 ltime; /* Load interlock time */
	103	uint32 hold; /* IU hold cycles in current inst */
	104	uint32 fhold; /* FPU hold cycles in current inst */
	105	uint32 icnt; /* Instruction cycles in curr inst */
	106
	107	uint32 histlen; /* Trace history management */
	108	uint32 histind;
	109	struct histype *histbuf;
	110	float32 freq; /* Simulated processor frequency */
	111
	112
94110024 JS	113	uint64 tottime;
	114	uint64 ninst;
	115	uint64 fholdt;
	116	uint64 holdt;
	117	uint64 icntt;
	118	uint64 finst;
	119	uint64 simstart;
	120	uint64 starttime;
	121	uint64 tlimit; /* Simulation time limit */
	122	uint64 pwdtime; /* Cycles in power-down mode */
	123	uint64 nstore; /* Number of load instructions */
	124	uint64 nload; /* Number of store instructions */
	125	uint64 nannul; /* Number of annuled instructions */
	126	uint64 nbranch; /* Number of branch instructions */
c906108c	127	uint32 ildreg; /* Destination of last load instruction */
94110024	128	uint64 ildtime; /* Last time point for load dependency */
c906108c SS	129
	130	int rett_err; /* IU in jmpl/restore error state (Rev.0) */
	131	int jmpltime;
	132	};
	133
	134	struct evcell {
	135	void (*cfunc) ();
	136	int32 arg;
94110024	137	uint64 time;
c906108c SS	138	struct evcell *nxt;
	139	};
	140
	141	struct estate {
	142	struct evcell eq;
	143	struct evcell *freeq;
94110024	144	uint64 simtime;
c906108c SS	145	};
	146
	147	struct irqcell {
	148	void (*callback) ();
	149	int32 arg;
	150	};
	151
	152
	153	#define OK 0
	154	#define TIME_OUT 1
	155	#define BPT_HIT 2
	156	#define ERROR 3
	157	#define CTRL_C 4
	158
	159	/* Prototypes */
	160
	161	/* erc32.c */
	162	extern void init_sim PARAMS ((void));
	163	extern void reset PARAMS ((void));
	164	extern void error_mode PARAMS ((uint32 pc));
	165	extern void sim_halt PARAMS ((void));
	166	extern void exit_sim PARAMS ((void));
	167	extern void init_stdio PARAMS ((void));
	168	extern void restore_stdio PARAMS ((void));
	169	extern int memory_read PARAMS ((int32 asi, uint32 addr, uint32 *data,
	170	int32 sz, int32 *ws));
	171	extern int memory_write PARAMS ((int32 asi, uint32 addr, uint32 *data,
	172	int32 sz, int32 *ws));
94110024 JS	173	extern int sis_memory_write PARAMS ((uint32 addr,
94110024 JS	174	const unsigned char *data, uint32 length));
c906108c SS	175	extern int sis_memory_read PARAMS ((uint32 addr, char *data,
	176	uint32 length));
	177
	178	/* func.c */
	179	extern void set_regi PARAMS ((struct pstate *sregs, int32 reg,
	180	uint32 rval));
	181	extern void get_regi PARAMS ((struct pstate sregs, int32 reg, char buf));
	182	extern int exec_cmd PARAMS ((struct pstate sregs, char cmd));
	183	extern void reset_stat PARAMS ((struct pstate *sregs));
	184	extern void show_stat PARAMS ((struct pstate *sregs));
	185	extern void init_bpt PARAMS ((struct pstate *sregs));
	186	extern void init_signals PARAMS ((void));
	187
	188	struct disassemble_info;
	189	extern void dis_mem PARAMS ((uint32 addr, uint32 len,
	190	struct disassemble_info *info));
94110024	191	extern void event PARAMS ((void (*cfunc) (), int32 arg, uint64 delta));
c906108c SS	192	extern void set_int PARAMS ((int32 level, void (*callback) (), int32 arg));
	193	extern void advance_time PARAMS ((struct pstate *sregs));
	194	extern uint32 now PARAMS ((void));
	195	extern int wait_for_irq PARAMS ((void));
	196	extern int check_bpt PARAMS ((struct pstate *sregs));
	197	extern void reset_all PARAMS ((void));
	198	extern void sys_reset PARAMS ((void));
	199	extern void sys_halt PARAMS ((void));
	200	extern int bfd_load PARAMS ((char *fname));
	201
	202	/* exec.c */
	203	extern int dispatch_instruction PARAMS ((struct pstate *sregs));
	204	extern int execute_trap PARAMS ((struct pstate *sregs));
	205	extern int check_interrupts PARAMS ((struct pstate *sregs));
	206	extern void init_regs PARAMS ((struct pstate *sregs));
	207
	208	/* interf.c */
	209	extern int run_sim PARAMS ((struct pstate *sregs,
94110024	210	uint64 icount, int dis));
c906108c SS	211
	212	/* float.c */
	213	extern int get_accex PARAMS ((void));
	214	extern void clear_accex PARAMS ((void));
	215	extern void set_fsr PARAMS ((uint32 fsr));
	216
	217	/* help.c */
	218	extern void usage PARAMS ((void));
	219	extern void gen_help PARAMS ((void));