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Diffstat (limited to 'sim/erc32/sis.h')
| -rw-r--r-- | sim/erc32/sis.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/sim/erc32/sis.h b/sim/erc32/sis.h new file mode 100644 index 00000000000..2a895c0277d --- /dev/null +++ b/sim/erc32/sis.h @@ -0,0 +1,217 @@ +/* + * 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 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., 675 + * Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include "ansidecl.h" +#include "callback.h" +#include "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 */ + +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 */ + + + uint32 tottime; + uint32 ninst; + uint32 fholdt; + uint32 holdt; + uint32 icntt; + uint32 finst; + uint32 simstart; + uint32 starttime; + uint32 tlimit; /* Simulation time limit */ + uint32 pwdtime; /* Cycles in power-down mode */ + uint32 nstore; /* Number of load instructions */ + uint32 nload; /* Number of store instructions */ + uint32 nannul; /* Number of annuled instructions */ + uint32 nbranch; /* Number of branch instructions */ + uint32 ildreg; /* Destination of last load instruction */ + uint32 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; + uint32 time; + struct evcell *nxt; +}; + +struct estate { + struct evcell eq; + struct evcell *freeq; + uint32 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, 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, uint32 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, + unsigned int 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)); |