mirror of
https://github.com/retro100/dosbox-wii.git
synced 2024-11-16 15:19:15 +01:00
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/*
|
|
* Copyright (C) 2002-2004 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
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "dosbox.h"
|
|
#include "callback.h"
|
|
#include "mem.h"
|
|
#include "regs.h"
|
|
#include "dos_inc.h"
|
|
|
|
|
|
static Bitu call_int2f,call_int2a;
|
|
struct MultiplexBlock {
|
|
MultiplexHandler * handler;
|
|
MultiplexBlock * next;
|
|
};
|
|
|
|
static MultiplexBlock * first_multiplex;
|
|
|
|
void DOS_AddMultiplexHandler(MultiplexHandler * handler) {
|
|
MultiplexBlock * new_multiplex=new(MultiplexBlock);
|
|
new_multiplex->next=first_multiplex;
|
|
new_multiplex->handler=handler;
|
|
first_multiplex=new_multiplex;
|
|
}
|
|
|
|
static Bitu INT2F_Handler(void) {
|
|
MultiplexBlock * loop_multiplex=first_multiplex;
|
|
while (loop_multiplex) {
|
|
if ((*loop_multiplex->handler)()) return CBRET_NONE;
|
|
loop_multiplex=loop_multiplex->next;
|
|
}
|
|
LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Multiplex Unhandled call %4X",reg_ax);
|
|
return CBRET_NONE;
|
|
};
|
|
|
|
|
|
static Bitu INT2A_Handler(void) {
|
|
|
|
return CBRET_NONE;
|
|
};
|
|
|
|
static bool DOS_MultiplexFunctions(void) {
|
|
switch (reg_ax) {
|
|
case 0x1680: /* RELEASE CURRENT VIRTUAL MACHINE TIME-SLICE */
|
|
//TODO Maybe do some idling but could screw up other systems :)
|
|
reg_al=0;
|
|
return true;
|
|
case 0x168f: /* Close awareness crap */
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void DOS_SetupMisc(void) {
|
|
/* Setup the dos multiplex interrupt */
|
|
first_multiplex=0;
|
|
call_int2f=CALLBACK_Allocate();
|
|
CALLBACK_Setup(call_int2f,&INT2F_Handler,CB_IRET);
|
|
RealSetVec(0x2f,CALLBACK_RealPointer(call_int2f));
|
|
DOS_AddMultiplexHandler(DOS_MultiplexFunctions);
|
|
/* Setup the dos network interrupt */
|
|
call_int2a=CALLBACK_Allocate();
|
|
CALLBACK_Setup(call_int2a,&INT2A_Handler,CB_IRET);
|
|
RealSetVec(0x2A,CALLBACK_RealPointer(call_int2a));
|
|
};
|
|
|