/* abstract.c -- Abstract entities header file
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/* abstract.c -- Abstract entities header file
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#define MEMORY_START 0
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#define DEFAULT_MEMORY_START 0
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#define MEMORY_LEN 0x800000
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#define DEFAULT_MEMORY_LEN 0x800000
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#define STACK_SIZE 20
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#define STACK_SIZE 20
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#define LABELNAME_LEN 50
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#define LABELNAME_LEN 50
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#define INSNAME_LEN 15
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#define INSNAME_LEN 15
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#define OPERANDNAME_LEN 50
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#define OPERANDNAME_LEN 50
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#define MAX_OPERANDS (4)
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#define MAX_OPERANDS (4)
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/* Structure for holding several labels of a particular memory location */
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/* Structure for holding several labels of a particular memory location */
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struct label_entry {
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struct label_entry {
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char *name;
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char *name;
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struct label_entry *next;
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struct label_entry *next;
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};
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};
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#define OP_MEM_ACCESS 0x80000000
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#define OP_MEM_ACCESS 0x80000000
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/* This is an abstract memory type rather than physical memory type. It holds
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/* This is an abstract memory type rather than physical memory type. It holds
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disassembled instructions. */
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disassembled instructions. */
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struct mem_entry {
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struct mem_entry {
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unsigned char data;
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unsigned char data;
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unsigned char brk;
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unsigned char brk;
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struct label_entry *label; /* labels */
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struct label_entry *label; /* labels */
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};
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};
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enum insn_type { unknown, exception, arith, shift, compare, branch,
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enum insn_type { unknown, exception, arith, shift, compare, branch,
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jump, load, store, movimm, move, extend, nop, mac };
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jump, load, store, movimm, move, extend, nop, mac };
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/* Instruction queue */
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/* Instruction queue */
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struct iqueue_entry {
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struct iqueue_entry {
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enum insn_type func_unit;
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enum insn_type func_unit;
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int insn_index;
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int insn_index;
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unsigned long insn;
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unsigned long insn;
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unsigned long op[2 * MAX_OPERANDS];
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unsigned long op[2 * MAX_OPERANDS];
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unsigned long insn_addr;
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unsigned long insn_addr;
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};
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};
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/* Memory regions assigned to devices */
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/* Memory regions assigned to devices */
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struct dev_memarea {
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struct dev_memarea {
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struct dev_memarea *next;
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struct dev_memarea *next;
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unsigned long baseaddr;
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unsigned long start;
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unsigned long end;
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unsigned long size;
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unsigned long size;
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unsigned long (*readfunc)(unsigned long);
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unsigned char (*readfunc)(unsigned long);
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void (*writefunc)(unsigned long, unsigned long);
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void (*writefunc)(unsigned long, unsigned char);
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struct mem_entry* (*getentry) (unsigned long);
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/* private data */
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unsigned long misc;
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};
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};
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extern struct iqueue_entry iqueue[20];
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extern struct iqueue_entry iqueue[20];
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extern struct iqueue_entry icomplet[20];
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extern struct iqueue_entry icomplet[20];
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extern unsigned long pc;
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extern unsigned long pc;
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extern struct mem_entry mem[MEMORY_LEN];
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extern void dumpmemory(unsigned int from, unsigned int to, int disasm);
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extern void dumpmemory(unsigned int from, unsigned int to, int disasm);
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extern unsigned long eval_label(char *label);
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extern unsigned long eval_label(char *label);
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extern unsigned long eval_mem32(unsigned long memaddr,int*);
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extern unsigned long eval_mem32(unsigned long memaddr,int*);
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extern unsigned short eval_mem16(unsigned long memaddr,int*);
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extern unsigned short eval_mem16(unsigned long memaddr,int*);
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extern unsigned char eval_mem8(unsigned long memaddr,int*);
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extern unsigned char eval_mem8(unsigned long memaddr,int*);
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extern void set_mem32(unsigned long memaddr, unsigned long value,int*);
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extern void set_mem32(unsigned long memaddr, unsigned long value,int*);
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extern void set_mem16(unsigned long memaddr, unsigned short value,int*);
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extern void set_mem16(unsigned long memaddr, unsigned short value,int*);
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extern void set_mem8(unsigned long memaddr, unsigned char value,int*);
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extern void set_mem8(unsigned long memaddr, unsigned char value,int*);
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unsigned long evalsim_mem32(unsigned long,int*);
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unsigned long evalsim_mem32(unsigned long);
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unsigned short evalsim_mem16(unsigned long,int*);
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unsigned short evalsim_mem16(unsigned long);
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unsigned char evalsim_mem8(unsigned long,int*);
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unsigned char evalsim_mem8(unsigned long);
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void setsim_mem32(unsigned long,unsigned long);
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void setsim_mem32(unsigned long,unsigned long);
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void setsim_mem16(unsigned long,unsigned short);
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void setsim_mem16(unsigned long,unsigned short);
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void setsim_mem8(unsigned long,unsigned char);
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void setsim_mem8(unsigned long,unsigned char);
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void sim_read_memory_table (char *filename);
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/* Register read and write function for a memory area (used by peripheral
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devices like 16450 UART etc.) */
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void register_memoryarea(unsigned long start, unsigned long size, unsigned char (readfunc)(unsigned long),
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void (writefunc)(unsigned long, unsigned char), struct mem_entry *(getentry)(unsigned long));
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/* Check if access is to registered area of memory. */
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struct dev_memarea *verify_memoryarea(unsigned long addr);
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/* Temporary variable to increase speed. */
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extern struct dev_memarea *cur_area;
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#ifndef DEBUGMOD_OFF
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#ifndef DEBUGMOD_OFF
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extern int GlobalMode; /* Added by CZ 26/05/01 */
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extern int GlobalMode; /* Added by CZ 26/05/01 */
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#else /* DEBUGMOD_OFF */
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#else /* DEBUGMOD_OFF */
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#define GlobalMode 0
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#define GlobalMode 0
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#endif /* DEBUGMOD_OFF */
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#endif /* DEBUGMOD_OFF */
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/* Added by MM */
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/* Added by MM */
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#ifndef LONGEST
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#ifndef LONGEST
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#ifdef BFD64
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#define LONGEST BFD_HOST_64_BIT
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#define ULONGEST BFD_HOST_U_64_BIT
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#else /* No BFD64 */
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#ifdef CC_HAS_LONG_LONG
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#define LONGEST long long
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#define LONGEST long long
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#define ULONGEST unsigned long long
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#define ULONGEST unsigned long long
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#else
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#ifdef BFD_HOST_64_BIT
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/* BFD_HOST_64_BIT is defined for some hosts that don't have long long
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(e.g. i386-windows) so try it. */
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#define LONGEST BFD_HOST_64_BIT
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#define ULONGEST BFD_HOST_U_64_BIT
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#else
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#define LONGEST long
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#define ULONGEST unsigned long
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#endif
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#endif
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#endif /* No BFD64 */
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#endif /* ! LONGEST */
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#endif /* ! LONGEST */
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