valter/dosbox-staging
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added function to only allocate a callback.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2253
This commit is contained in:
Peter Veenstra 2005-07-30 09:49:29 +00:00
parent c6f68033c5
commit b4fb1af8a2
2 changed files with 17 additions and 3 deletions
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5
include/callback.h
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: callback.h,v 1.12 2005-03-24 20:59:04 qbix79 Exp $ */
/* $Id: callback.h,v 1.13 2005-07-30 09:49:28 qbix79 Exp $ */
#ifndef DOSBOX_CALLBACK_H
#define DOSBOX_CALLBACK_H
@ -76,7 +76,10 @@ private:
public:
CALLBACK_HandlerObject():installed(false),m_type(NONE){vectorhandler.installed=false;}
~CALLBACK_HandlerObject();
//Install and allocate a callback.
void Install(CallBack_Handler handler,Bitu type,const char* description=0);
//Only allocate a callback number
void Allocate(CallBack_Handler handler,const char* description=0);
Bit16u Get_callback(){return m_callback;}
RealPt Get_RealPointer(){ return RealMake(CB_SEG,m_callback << 4);}
void Set_RealVec(Bit8u vec);

15
src/cpu/callback.cpp
View file

@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: callback.cpp,v 1.26 2005-03-25 10:12:04 qbix79 Exp $ */
/* $Id: callback.cpp,v 1.27 2005-07-30 09:49:29 qbix79 Exp $ */
#include <stdlib.h>
#include <string.h>
@ -168,7 +168,6 @@ void CALLBACK_RemoveSetup(Bitu callback) {
for (Bitu i = 0;i < 16;i++) {
phys_writeb(CB_BASE+(callback<<4)+i ,(Bit8u) 0x00);
}
CallBack_Description[callback] = 0;
}
@ -215,7 +214,10 @@ CALLBACK_HandlerObject::~CALLBACK_HandlerObject(){
CALLBACK_RemoveSetup(m_callback);
} else if(m_type == CALLBACK_HandlerObject::SETUPAT){
E_Exit("Callback:SETUP at not handled yet.");
} else if(m_type == CALLBACK_HandlerObject::NONE){
//Do nothing. Merely DeAllocate the callback
} else E_Exit("what kind of callback is this!");
CallBack_Description[m_callback] = 0;
CALLBACK_DeAllocate(m_callback);
}
@ -227,6 +229,15 @@ void CALLBACK_HandlerObject::Install(CallBack_Handler handler,Bitu type,const ch
CALLBACK_Setup(m_callback,handler,type,description);
} else E_Exit("Allready installed");
}
void CALLBACK_HandlerObject::Allocate(CallBack_Handler handler,const char* description) {
if(!installed) {
installed=true;
m_type=NONE;
m_callback=CALLBACK_Allocate();
CALLBACK_SetDescription(m_callback,description);
CallBack_Handlers[m_callback]=handler;
} else E_Exit("Allready installed");
}
void CALLBACK_HandlerObject::Set_RealVec(Bit8u vec){
if(!vectorhandler.installed) {