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reduce reported sectors per cluster drive (ripsaw; fixes buggy drive geometry calculations in Black Knight (installer) and Tamper)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3686
This commit is contained in:
Sebastian Strohhäcker 2011-03-18 21:39:12 +00:00
parent b986ab88f7
commit 19517f7ac5
3 changed files with 15 additions and 17 deletions
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18
src/dos/dos_programs.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2010 The DOSBox Team
* Copyright (C) 2002-2011 The DOSBox Team
*
* 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
@ -126,9 +126,9 @@ public:
str_size="512,1,2880,2880";/* All space free */
mediaid=0xF0; /* Floppy 1.44 media */
} else if (type=="dir") {
// 512*127*16383==~1GB total size
// 512*127*4031==~250MB total free size
str_size="512,127,16383,4031";
// 512*32*65535==~1GB total size
// 512*32*16000==~250MB total free size
str_size="512,32,65535,16000";
mediaid=0xF8; /* Hard Disk */
} else if (type=="cdrom") {
str_size="2048,1,65535,0";
@ -141,11 +141,13 @@ public:
std::string mb_size;
if(cmd->FindString("-freesize",mb_size,true)) {
char teststr[1024];
Bit16u sizemb = static_cast<Bit16u>(atoi(mb_size.c_str()));
Bit16u freesize = static_cast<Bit16u>(atoi(mb_size.c_str()));
if (type=="floppy") {
sprintf(teststr,"512,1,2880,%d",sizemb*1024/(512*1));
// freesize in kb
sprintf(teststr,"512,1,2880,%d",freesize*1024/(512*1));
} else {
sprintf(teststr,"512,127,16513,%d",sizemb*1024*1024/(512*127));
// freesize in mb
sprintf(teststr,"512,32,65535,%d",freesize*1024*1024/(512*32));
}
str_size=teststr;
}
@ -1026,7 +1028,7 @@ public:
if (type=="floppy") {
mediaid=0xF0;
} else if (type=="iso") {
str_size="650,127,16513,1700";
str_size=="2048,1,60000,0"; // ignored, see drive_iso.cpp (AllocationInfo)
mediaid=0xF8;
fstype = "iso";
}

4
src/dos/drive_local.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2010 The DOSBox Team
* Copyright (C) 2002-2011 The DOSBox Team
*
* 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
@ -380,8 +380,6 @@ bool localDrive::Rename(char * oldname,char * newname) {
}
bool localDrive::AllocationInfo(Bit16u * _bytes_sector,Bit8u * _sectors_cluster,Bit16u * _total_clusters,Bit16u * _free_clusters) {
/* Always report 100 mb free should be enough */
/* Total size is always 1 gb */
*_bytes_sector=allocation.bytes_sector;
*_sectors_cluster=allocation.sectors_cluster;
*_total_clusters=allocation.total_clusters;

10
src/dos/drive_virtual.cpp
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2002-2010 The DOSBox Team
* Copyright (C) 2002-2011 The DOSBox Team
*
* 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
@ -248,12 +248,10 @@ bool Virtual_Drive::Rename(char * oldname,char * newname) {
}
bool Virtual_Drive::AllocationInfo(Bit16u * _bytes_sector,Bit8u * _sectors_cluster,Bit16u * _total_clusters,Bit16u * _free_clusters) {
/* Always report 100 mb free should be enough */
/* Total size is always 1 gb */
*_bytes_sector=512;
*_sectors_cluster=127;
*_total_clusters=16513;
*_free_clusters=00;
*_sectors_cluster=32;
*_total_clusters=65535; // total size is always 1 gb
*_free_clusters=0; // nothing free here
return true;
}