2009-05-02 23:03:37 +02:00
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/*
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* Copyright (C) 2002 The DOSBox Team
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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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "dosbox.h"
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#include "callback.h"
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#include "mem.h"
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#include "regs.h"
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#include "dos_inc.h"
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static Bitu call_int2f,call_int2a;
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struct MultiplexBlock {
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MultiplexHandler * handler;
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MultiplexBlock * next;
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};
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static MultiplexBlock * first_multiplex;
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void DOS_AddMultiplexHandler(MultiplexHandler * handler) {
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MultiplexBlock * new_multiplex=new(MultiplexBlock);
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new_multiplex->next=first_multiplex;
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new_multiplex->handler=handler;
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first_multiplex=new_multiplex;
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}
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static Bitu INT2F_Handler(void) {
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MultiplexBlock * loop_multiplex=first_multiplex;
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while (loop_multiplex) {
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if ((*loop_multiplex->handler)()) return CBRET_NONE;
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loop_multiplex=loop_multiplex->next;
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}
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LOG_WARN("DOS:Multiplex Unhandled call %4X",reg_ax);
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return CBRET_NONE;
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};
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static Bitu INT2A_Handler(void) {
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return CBRET_NONE;
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};
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void DOS_SetupMisc(void) {
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/* Setup the dos multiplex interrupt */
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first_multiplex=0;
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call_int2f=CALLBACK_Allocate();
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CALLBACK_Setup(call_int2f,&INT2F_Handler,CB_IRET);
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RealSetVec(0x2f,CALLBACK_RealPointer(call_int2f));
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/* Setup the dos network interrupt */
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call_int2a=CALLBACK_Allocate();
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CALLBACK_Setup(call_int2a,&INT2A_Handler,CB_IRET);
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RealSetVec(0x2A<<2,CALLBACK_RealPointer(call_int2a));
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};
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