binutils-gdb/sim/erc32/sis.h

146 lines
4.1 KiB
C
Raw Normal View History

/*
* 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 "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 */
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 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 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