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Add a very simple dummy LPT1 class. Fixes games opening LPT1 under MS Windows. (for example Cisco Heat)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2599
This commit is contained in:
Peter Veenstra 2006-04-16 14:02:39 +00:00
parent 8b7b77b21e
commit fd7f1e45b4
1 changed files with 20 additions and 11 deletions
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31
src/dos/dos_devices.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: dos_devices.cpp,v 1.12 2006-04-07 16:34:07 c2woody Exp $ */
/* $Id: dos_devices.cpp,v 1.13 2006-04-16 14:02:39 qbix79 Exp $ */
#include <string.h>
#include "dosbox.h"
@ -37,24 +37,30 @@ DOS_Device * Devices[DOS_DEVICES];
class device_NUL : public DOS_Device {
public:
device_NUL() { SetName("NUL"); };
bool Read(Bit8u * data,Bit16u * size) {
virtual bool Read(Bit8u * data,Bit16u * size) {
for(Bitu i = 0; i < *size;i++)
data[i]=0;
LOG(LOG_IOCTL,LOG_NORMAL)("NUL:READ");
LOG(LOG_IOCTL,LOG_NORMAL)("%s:READ",GetName());
return true;
}
bool Write(Bit8u * data,Bit16u * size) {
LOG(LOG_IOCTL,LOG_NORMAL)("NUL:WRITE");
virtual bool Write(Bit8u * data,Bit16u * size) {
LOG(LOG_IOCTL,LOG_NORMAL)("%s:WRITE",GetName());
return true;
}
bool Seek(Bit32u * pos,Bit32u type) {
LOG(LOG_IOCTL,LOG_NORMAL)("NUL:SEEK");
virtual bool Seek(Bit32u * pos,Bit32u type) {
LOG(LOG_IOCTL,LOG_NORMAL)("%s:SEEK",GetName());
return true;
}
bool Close() { return true; }
Bit16u GetInformation(void) { return 0x8084; }
bool ReadFromControlChannel(PhysPt bufptr,Bit16u size,Bit16u * retcode){return false;}
bool WriteToControlChannel(PhysPt bufptr,Bit16u size,Bit16u * retcode){return false;}
virtual bool Close() { return true; }
virtual Bit16u GetInformation(void) { return 0x8084; }
virtual bool ReadFromControlChannel(PhysPt bufptr,Bit16u size,Bit16u * retcode){return false;}
virtual bool WriteToControlChannel(PhysPt bufptr,Bit16u size,Bit16u * retcode){return false;}
};
class device_LPT1 : public device_NUL {
public:
device_LPT1() { SetName("LPT1");}
Bit16u GetInformation(void) { return 0x80A0; }
};
bool DOS_Device::Read(Bit8u * data,Bit16u * size) {
@ -168,4 +174,7 @@ void DOS_SetupDevices(void) {
DOS_Device * newdev2;
newdev2=new device_NUL();
DOS_AddDevice(newdev2);
DOS_Device * newdev3;
newdev3=new device_LPT1();
DOS_AddDevice(newdev3);
}