/* 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 MEMORY_START 0
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#define MEMORY_LEN 102400
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#define MEMORY_LEN 102400
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#define STACK_SIZE 10000
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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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/* 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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/* Structure that holds disassembled instruction. */
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/* Structure that holds disassembled instruction. */
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struct insn_entry {
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struct insn_entry {
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char *insn;
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char *insn;
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char *op1;
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char *op1;
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char *op2;
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char *op2;
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char *op3;
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char *op3;
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char *op4;
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char *op4;
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};
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};
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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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struct insn_entry *insn; /* insn */
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struct insn_entry *insn; /* insn */
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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 };
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jump, load, store, movimm, move, extend, nop };
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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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char insn[INSNAME_LEN];
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char insn[INSNAME_LEN];
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enum insn_type func_unit;
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enum insn_type func_unit;
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char op1[OPERANDNAME_LEN];
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char op1[OPERANDNAME_LEN];
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char op2[OPERANDNAME_LEN];
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char op2[OPERANDNAME_LEN];
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char op3[OPERANDNAME_LEN];
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char op3[OPERANDNAME_LEN];
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char op4[OPERANDNAME_LEN];
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char op4[OPERANDNAME_LEN];
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char *dependdst;
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char *dependdst;
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char *dependsrc1;
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char *dependsrc1;
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char *dependsrc2;
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char *dependsrc2;
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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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/* Completition queue */
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/* Completition queue */
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struct icomplet_entry {
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struct icomplet_entry {
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char insn[INSNAME_LEN];
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char insn[INSNAME_LEN];
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enum insn_type func_unit;
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enum insn_type func_unit;
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char op1[OPERANDNAME_LEN];
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char op1[OPERANDNAME_LEN];
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char op2[OPERANDNAME_LEN];
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char op2[OPERANDNAME_LEN];
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char op3[OPERANDNAME_LEN];
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char op3[OPERANDNAME_LEN];
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char op4[OPERANDNAME_LEN];
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char op4[OPERANDNAME_LEN];
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char *dependdst;
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char *dependdst;
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char *dependsrc1;
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char *dependsrc1;
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char *dependsrc2;
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char *dependsrc2;
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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 baseaddr;
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unsigned long size;
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unsigned long size;
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unsigned char (*readfunc)(unsigned long);
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unsigned char (*readfunc)(unsigned long);
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void (*writefunc)(unsigned long, unsigned char);
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void (*writefunc)(unsigned long, unsigned char);
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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 icomplet_entry icomplet[20];
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extern struct icomplet_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 struct mem_entry mem[MEMORY_LEN];
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extern void dumpmemory(unsigned int from, unsigned int to);
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extern void dumpmemory(unsigned int from, unsigned int to);
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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);
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extern unsigned long eval_mem32(unsigned long memaddr);
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extern unsigned short eval_mem16(unsigned long memaddr);
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extern unsigned short eval_mem16(unsigned long memaddr);
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extern unsigned char eval_mem8(unsigned long memaddr);
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extern unsigned char eval_mem8(unsigned long memaddr);
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extern void set_mem32(unsigned long memaddr, unsigned long value);
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extern void set_mem32(unsigned long memaddr, unsigned long value);
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extern void set_mem16(unsigned long memaddr, unsigned short value);
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extern void set_mem16(unsigned long memaddr, unsigned short value);
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extern void set_mem8(unsigned long memaddr, unsigned char value);
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extern void set_mem8(unsigned long memaddr, unsigned char value);
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