clobber
114 lines
3.8 KiB
C++
Executable File
114 lines
3.8 KiB
C++
Executable File
// ----------------------------------------------------------------------------
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// ___ ___ ___ ___ ___ ____ ___ _ _
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// /__/ /__/ / / /__ /__/ /__ / /_ / |/ /
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// / / \ /__/ ___/ ___/ ___/ / /__ / / emulator
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//
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// ----------------------------------------------------------------------------
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// Copyright 2005 Greg Stanton
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//
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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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// 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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//
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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// ----------------------------------------------------------------------------
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// Bios.cpp
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// ----------------------------------------------------------------------------
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#include "Bios.h"
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#define BIOS_SOURCE "Bios.cpp"
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bool bios_enabled = false;
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std::string bios_filename;
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static byte* bios_data = NULL;
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static word bios_size = 0;
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// ----------------------------------------------------------------------------
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// Load
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// ----------------------------------------------------------------------------
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bool bios_Load(std::string filename) {
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if(filename.empty( ) || filename.length( ) == 0) {
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logger_LogError("Bios filename is invalid.", BIOS_SOURCE);
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return false;
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}
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bios_Release( );
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logger_LogInfo("Opening bios file " + filename + ".", BIOS_SOURCE);
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bios_size = archive_GetUncompressedFileSize(filename);
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if(bios_size == 0) {
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FILE* file = fopen(filename.c_str( ), "rb");
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if(file == NULL) {
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#ifndef WII
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logger_LogError("Failed to open the bios file " + filename + " for reading.", BIOS_SOURCE);
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#endif
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return false;
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}
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if(fseek(file, 0, SEEK_END)) {
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fclose(file);
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logger_LogError("Failed to find the end of the bios file.", BIOS_SOURCE);
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return false;
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}
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bios_size = ftell(file);
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if(fseek(file, 0, SEEK_SET)) {
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fclose(file);
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logger_LogError("Failed to find the size of the bios file.", BIOS_SOURCE);
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return false;
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}
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bios_data = new byte[bios_size];
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if(fread(bios_data, 1, bios_size, file) != bios_size && ferror(file)) {
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fclose(file);
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logger_LogError("Failed to read the bios data.", BIOS_SOURCE);
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bios_Release( );
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return false;
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}
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fclose(file);
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}
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else {
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bios_data = new byte[bios_size];
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archive_Uncompress(filename, bios_data, bios_size);
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}
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bios_filename = filename;
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return true;
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}
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// ----------------------------------------------------------------------------
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// IsLoaded
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// ----------------------------------------------------------------------------
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bool bios_IsLoaded( ) {
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return (bios_data != NULL)? true: false;
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}
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// ----------------------------------------------------------------------------
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// Release
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// ----------------------------------------------------------------------------
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void bios_Release( ) {
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if(bios_data) {
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delete [ ] bios_data;
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bios_size = 0;
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bios_data = NULL;
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}
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}
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// ----------------------------------------------------------------------------
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// Store
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// ----------------------------------------------------------------------------
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void bios_Store( ) {
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if(bios_data != NULL && bios_enabled) {
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memory_WriteROM(65536 - bios_size, bios_size, bios_data);
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}
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}
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