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[/] [or1k/] [tags/] [nog_patch_68/] [or1ksim/] [cpu/] [common/] [abstract.h] - Rev 538
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/* abstract.c -- Abstract entities header file Copyright (C) 1999 Damjan Lampret, lampret@opencores.org This file is part of OpenRISC 1000 Architectural Simulator. 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 <stdio.h> #define DEFAULT_MEMORY_START 0 #define DEFAULT_MEMORY_LEN 0x800000 #define STACK_SIZE 20 #define LABELNAME_LEN 50 #define INSNAME_LEN 15 #define OPERANDNAME_LEN 50 #define MAX_OPERANDS (4) #define OP_MEM_ACCESS 0x80000000 /* Cache tag types. */ #define CT_NONE 0 #define CT_VIRTUAL 1 #define CT_PHYSICAL 2 enum insn_type { it_unknown, it_exception, it_arith, it_shift, it_compare, it_branch, it_jump, it_load, it_store, it_movimm, it_move, it_extend, it_nop, it_mac }; /* Instruction queue */ struct iqueue_entry { enum insn_type func_unit; int insn_index; unsigned long insn; unsigned long op[2 * MAX_OPERANDS]; unsigned long insn_addr; }; /* Memory regions assigned to devices */ struct dev_memarea { struct dev_memarea *next; /*unsigned long start; unsigned long end; /* if start + size > end, this block is disabled; to enable it recalculate end addr. */ unsigned long addr_mask; unsigned long addr_compare; unsigned long size; unsigned long size_mask; /* Address mask, calculated out of size */ unsigned long granularity; /* how many bytes read/write accepts: 1/2/4 */ int delayr; /* Read delay */ int delayw; /* Write delay */ int chip_select; /* Needed by memory controller; specifies chip select number for this memory area. */ FILE *log; /* log file if this device is to be logged, NULL otherwise */ unsigned long (*readfunc)(unsigned long); void (*writefunc)(unsigned long, unsigned long); /* private data */ unsigned long misc; }; extern struct iqueue_entry iqueue[20]; extern struct iqueue_entry icomplet[20]; extern unsigned long pc; extern int mem_cycles; /* Number of memory cycles in during this instruction execution */ extern int cycles; /* Total number of cycles executed so far */ extern void dumpmemory(unsigned int from, unsigned int to, int disasm, int nl); extern unsigned long eval_mem32(unsigned long memaddr,int*); extern unsigned short eval_mem16(unsigned long memaddr,int*); extern unsigned char eval_mem8(unsigned long memaddr,int*); extern void set_mem32(unsigned long memaddr, unsigned long value,int*); extern void set_mem16(unsigned long memaddr, unsigned short value,int*); extern void set_mem8(unsigned long memaddr, unsigned char value,int*); unsigned long evalsim_mem32(unsigned long); unsigned short evalsim_mem16(unsigned long); unsigned char evalsim_mem8(unsigned long); void setsim_mem32(unsigned long,unsigned long); void setsim_mem16(unsigned long,unsigned short); void setsim_mem8(unsigned long,unsigned char); void init_memory_table (); /* Changes read/write memory in read/write only */ void lock_memory_table (); /* Closes files, etc. */ void done_memory_table (); /* Displays current memory configuration */ void memory_table_status (); /* Register read and write function for a memory area. addr is inside the area, if addr & addr_mask == addr_compare (used also by peripheral devices like 16450 UART etc.) */ void register_memoryarea_mask(unsigned long addr_mask, unsigned long addr_compare, unsigned long size, unsigned granularity, unsigned long (readfunc)(unsigned long), void (writefunc)(unsigned long, unsigned long)); /* Register read and write function for a memory area. Memory areas should be aligned. Memory area is rounded up to fit the nearest 2^n aligment. (used also by peripheral devices like 16450 UART etc.) */ void register_memoryarea(unsigned long addr, unsigned long size, unsigned granularity, unsigned long (readfunc)(unsigned long), void (writefunc)(unsigned long, unsigned long)); /* Check if access is to registered area of memory. */ struct dev_memarea *verify_memoryarea(unsigned long addr); /* Outputs time in pretty form to dest string */ void generate_time_pretty (char *dest, long time_ps); /* Temporary variable to increase speed. */ extern struct dev_memarea *cur_area; /* Added by MM */ #ifndef LONGEST #define LONGEST long long #define ULONGEST unsigned long long #endif /* ! LONGEST */ /* Instructions left to execute */ extern int cont_run; /* History of execution */ #define HISTEXEC_LEN 200 extern int histexec[HISTEXEC_LEN];
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