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222 lines
6.5 KiB
C
222 lines
6.5 KiB
C
/* Copyright (C) 1995-2017 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "ansidecl.h"
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#include "gdb/callback.h"
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#include "gdb/remote-sim.h"
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#include <sim-config.h>
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#include <stdint.h>
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#if HOST_BYTE_ORDER == BIG_ENDIAN
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#define HOST_BIG_ENDIAN
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#define EBT 0
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#else
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#define HOST_LITTLE_ENDIAN
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#define EBT 3
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#endif
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#define I_ACC_EXC 1
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/* Maximum events in event queue */
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#define EVENT_MAX 256
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/* Maximum # of floating point queue */
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#define FPUQN 1
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/* Maximum # of breakpoints */
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#define BPT_MAX 256
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struct histype {
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unsigned addr;
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unsigned time;
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};
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/* type definitions */
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typedef short int int16; /* 16-bit signed int */
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typedef unsigned short int uint16; /* 16-bit unsigned int */
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typedef int int32; /* 32-bit signed int */
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typedef unsigned int uint32; /* 32-bit unsigned int */
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typedef float float32; /* 32-bit float */
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typedef double float64; /* 64-bit float */
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typedef uint64_t uint64; /* 64-bit unsigned int */
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typedef int64_t int64; /* 64-bit signed int */
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struct pstate {
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float64 fd[16]; /* FPU registers */
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#ifdef HOST_LITTLE_ENDIAN
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float32 fs[32];
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float32 *fdp;
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#else
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float32 *fs;
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#endif
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int32 *fsi;
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uint32 fsr;
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int32 fpstate;
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uint32 fpq[FPUQN * 2];
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uint32 fpqn;
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uint32 ftime;
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uint32 flrd;
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uint32 frd;
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uint32 frs1;
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uint32 frs2;
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uint32 fpu_pres; /* FPU present (0 = No, 1 = Yes) */
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uint32 psr; /* IU registers */
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uint32 tbr;
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uint32 wim;
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uint32 g[8];
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uint32 r[128];
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uint32 y;
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uint32 asr17; /* Single vector trapping */
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uint32 pc, npc;
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uint32 trap; /* Current trap type */
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uint32 annul; /* Instruction annul */
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uint32 data; /* Loaded data */
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uint32 inst; /* Current instruction */
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uint32 asi; /* Current ASI */
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uint32 err_mode; /* IU error mode */
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uint32 breakpoint;
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uint32 bptnum;
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uint32 bphit;
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uint32 bpts[BPT_MAX]; /* Breakpoints */
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uint32 ltime; /* Load interlock time */
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uint32 hold; /* IU hold cycles in current inst */
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uint32 fhold; /* FPU hold cycles in current inst */
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uint32 icnt; /* Instruction cycles in curr inst */
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uint32 histlen; /* Trace history management */
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uint32 histind;
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struct histype *histbuf;
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float32 freq; /* Simulated processor frequency */
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double tottime;
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uint64 ninst;
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uint64 fholdt;
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uint64 holdt;
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uint64 icntt;
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uint64 finst;
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uint64 simstart;
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double starttime;
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uint64 tlimit; /* Simulation time limit */
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uint64 pwdtime; /* Cycles in power-down mode */
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uint64 nstore; /* Number of load instructions */
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uint64 nload; /* Number of store instructions */
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uint64 nannul; /* Number of annuled instructions */
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uint64 nbranch; /* Number of branch instructions */
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uint32 ildreg; /* Destination of last load instruction */
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uint64 ildtime; /* Last time point for load dependency */
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int rett_err; /* IU in jmpl/restore error state (Rev.0) */
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int jmpltime;
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};
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struct evcell {
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void (*cfunc) ();
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int32 arg;
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uint64 time;
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struct evcell *nxt;
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};
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struct estate {
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struct evcell eq;
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struct evcell *freeq;
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uint64 simtime;
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};
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struct irqcell {
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void (*callback) ();
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int32 arg;
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};
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#define OK 0
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#define TIME_OUT 1
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#define BPT_HIT 2
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#define ERROR 3
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#define CTRL_C 4
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/* Prototypes */
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/* erc32.c */
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extern void init_sim (void);
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extern void reset (void);
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extern void error_mode (uint32 pc);
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extern void sim_halt (void);
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extern void exit_sim (void);
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extern void init_stdio (void);
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extern void restore_stdio (void);
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extern int memory_iread (uint32 addr, uint32 *data, int32 *ws);
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extern int memory_read (int32 asi, uint32 addr, uint32 *data,
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int32 sz, int32 *ws);
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extern int memory_write (int32 asi, uint32 addr, uint32 *data,
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int32 sz, int32 *ws);
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extern int sis_memory_write (uint32 addr,
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const unsigned char *data, uint32 length);
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extern int sis_memory_read (uint32 addr, char *data,
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uint32 length);
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/* func.c */
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extern struct pstate sregs;
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extern void set_regi (struct pstate *sregs, int32 reg,
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uint32 rval);
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extern void get_regi (struct pstate *sregs, int32 reg, char *buf);
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extern int exec_cmd (struct pstate *sregs, const char *cmd);
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extern void reset_stat (struct pstate *sregs);
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extern void show_stat (struct pstate *sregs);
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extern void init_bpt (struct pstate *sregs);
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extern void init_signals (void);
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struct disassemble_info;
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extern void dis_mem (uint32 addr, uint32 len,
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struct disassemble_info *info);
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extern void event (void (*cfunc) (), int32 arg, uint64 delta);
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extern void set_int (int32 level, void (*callback) (), int32 arg);
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extern void advance_time (struct pstate *sregs);
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extern uint32 now (void);
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extern int wait_for_irq (void);
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extern int check_bpt (struct pstate *sregs);
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extern void reset_all (void);
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extern void sys_reset (void);
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extern void sys_halt (void);
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extern int bfd_load (const char *fname);
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extern double get_time (void);
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/* exec.c */
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extern int dispatch_instruction (struct pstate *sregs);
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extern int execute_trap (struct pstate *sregs);
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extern int check_interrupts (struct pstate *sregs);
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extern void init_regs (struct pstate *sregs);
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/* interf.c */
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extern int run_sim (struct pstate *sregs,
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uint64 icount, int dis);
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/* float.c */
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extern int get_accex (void);
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extern void clear_accex (void);
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extern void set_fsr (uint32 fsr);
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/* help.c */
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extern void usage (void);
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extern void gen_help (void);
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