Main Page Main Page Related Pages Files storage.c00001 /* 00002 * $Id: storage.c,v 1.8 2003/12/02 08:25:00 troth Exp $ 00003 * 00004 **************************************************************************** 00005 * 00006 * simulavr - A simulator for the Atmel AVR family of microcontrollers. 00007 * Copyright (C) 2001, 2002, 2003 Theodore A. Roth 00008 * 00009 * This program is free software; you can redistribute it and/or modify 00010 * it under the terms of the GNU General Public License as published by 00011 * the Free Software Foundation; either version 2 of the License, or 00012 * (at your option) any later version. 00013 * 00014 * This program is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00017 * GNU General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU General Public License 00020 * along with this program; if not, write to the Free Software 00021 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 * 00023 **************************************************************************** 00024 */ 00025 00026 #include <config.h> 00027 00028 #include <stdio.h> 00029 #include <stdlib.h> 00030 00031 #include "avrerror.h" 00032 #include "avrmalloc.h" 00033 #include "avrclass.h" 00034 #include "storage.h" 00035 00036 /***************************************************************************\ 00037 * 00038 * Storage(AvrClass) Methods 00039 * 00040 \***************************************************************************/ 00041 00042 Storage * 00043 storage_new (int base, int size) 00044 { 00045 Storage *stor; 00046 00047 stor = avr_new (Storage, 1); 00048 storage_construct (stor, base, size); 00049 class_overload_destroy ((AvrClass *)stor, storage_destroy); 00050 00051 return stor; 00052 } 00053 00054 void 00055 storage_construct (Storage *stor, int base, int size) 00056 { 00057 if (stor == NULL) 00058 avr_error ("passed null ptr"); 00059 00060 class_construct ((AvrClass *)stor); 00061 00062 stor->base = base; /* address */ 00063 stor->size = size; /* bytes */ 00064 00065 stor->data = avr_new0 (uint8_t, size); 00066 } 00067 00068 /* 00069 * Not to be called directly, except by a derived class. 00070 * Called via class_unref. 00071 */ 00072 void 00073 storage_destroy (void *stor) 00074 { 00075 if (stor == NULL) 00076 return; 00077 00078 avr_free (((Storage *)stor)->data); 00079 class_destroy (stor); 00080 } 00081 00082 extern inline uint8_t 00083 storage_readb (Storage *stor, int addr); 00084 00085 extern inline uint16_t 00086 storage_readw (Storage *stor, int addr); 00087 00088 void 00089 storage_writeb (Storage *stor, int addr, uint8_t val) 00090 { 00091 int _addr = addr - stor->base; 00092 00093 if (stor == NULL) 00094 avr_error ("passed null ptr"); 00095 00096 if ((_addr < 0) || (_addr >= stor->size)) 00097 avr_error ("address out of bounds: 0x%x", addr); 00098 00099 stor->data[_addr] = val; 00100 } 00101 00102 void 00103 storage_writew (Storage *stor, int addr, uint16_t val) 00104 { 00105 int _addr = addr - stor->base; 00106 00107 if (stor == NULL) 00108 avr_error ("passed null ptr"); 00109 00110 if ((_addr < 0) || (_addr >= stor->size)) 00111 avr_error ("address out of bounds: 0x%x", addr); 00112 00113 stor->data[_addr] = (uint8_t) (val >> 8 & 0xff); 00114 stor->data[_addr + 1] = (uint8_t) (val & 0xff); 00115 } 00116 00117 int 00118 storage_get_size (Storage *stor) 00119 { 00120 return stor->size; 00121 } 00122 00123 int 00124 storage_get_base (Storage *stor) 00125 { 00126 return stor->base; 00127 } Automatically generated by Doxygen 1.5.5 on 7 Nov 2008.