89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
#ifndef __memory_H // -*- c++ -*-
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#define __memory_H
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/*
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* Copyright (c) 2001-2010 Stephen Williams (steve@icarus.com)
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* Copyright (c) 2001 Stephan Boettcher <stephan@nevis.columbia.edu>
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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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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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include "pointers.h"
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#include "functor.h"
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/*
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** vvp_memory_t is a memory
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** vvp_memory_bits_t are bits in a memory
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** vvp_memory_index_t is a memory index range definition
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*/
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typedef struct vvp_memory_s *vvp_memory_t;
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typedef unsigned char *vvp_memory_bits_t;
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typedef struct vvp_memory_index_s *vvp_memory_index_t;
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// moved from memory.cc for callback function visibility
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typedef struct vvp_memory_port_s *vvp_memory_port_t;
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// moved here from memory.cc for callback function visibility
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struct vvp_memory_s
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{
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char *name; // VPI scope.name
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// Address port properties:
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unsigned size; // total number of data words
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unsigned a_idxs; // number of address indices
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vvp_memory_index_t a_idx; // vector of address indices
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// Data port properties:
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unsigned width; // number of data bits
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unsigned fwidth; // number of bytes (4bits) per data word
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int msb, lsb; // Most/Least Significant data bit (VPI)
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vvp_memory_bits_t bits; // Array of bits
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vvp_memory_port_t addr_root; // Port list root;
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// callbacks
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struct __vpiCallback*cb; // callback list for this vpiMemory
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};
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void memory_new(vvp_memory_t mem, char *name, int lsb, int msb,
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unsigned idxs, long *idx);
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vvp_ipoint_t memory_port_new(vvp_memory_t mem,
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unsigned nbits, unsigned bitoff,
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unsigned naddr, bool writable);
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void memory_init_nibble(vvp_memory_t mem, unsigned idx, unsigned char val);
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void memory_set(vvp_memory_t mem, unsigned idx, unsigned char val);
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unsigned memory_get(vvp_memory_t mem, unsigned idx);
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void schedule_memory(vvp_memory_t mem, unsigned idx,
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unsigned char val, unsigned delay);
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unsigned memory_size(vvp_memory_t mem);
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char *memory_name(vvp_memory_t mem);
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unsigned memory_data_width(vvp_memory_t mem);
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unsigned memory_root(vvp_memory_t mem, unsigned ix = 0);
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unsigned memory_left_range(vvp_memory_t mem, unsigned ix = 0);
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unsigned memory_right_range(vvp_memory_t mem, unsigned ix = 0);
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unsigned memory_word_left_range(vvp_memory_t mem);
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unsigned memory_word_right_range(vvp_memory_t mem);
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/*
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** Access to the memory symbol table.
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*/
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vvp_memory_t memory_find(char *label);
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vvp_memory_t memory_create(char *label);
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#endif
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