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127 lines
4 KiB
C
127 lines
4 KiB
C
/*
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* BIOS interrupt 1ah handler
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*
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* Copyright 1993 Erik Bos
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/debug.h"
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#include "dosexe.h"
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WINE_DEFAULT_DEBUG_CHANNEL(int);
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#define BCD_TO_BIN(x) ((x&15) + (x>>4)*10)
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#define BIN_TO_BCD(x) ((x%10) + ((x/10)<<4))
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/**********************************************************************
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* DOSVM_Int1aHandler
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*
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* Handler for int 1ah.
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*/
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void WINAPI DOSVM_Int1aHandler( CONTEXT86 *context )
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{
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switch(AH_reg(context))
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{
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case 0x00: /* GET SYSTEM TIME */
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{
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BIOSDATA *data = DOSVM_BiosData();
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SET_CX( context, HIWORD(data->Ticks) );
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SET_DX( context, LOWORD(data->Ticks) );
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SET_AL( context, 0 ); /* FIXME: midnight flag is unsupported */
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TRACE( "GET SYSTEM TIME - ticks=%d\n", data->Ticks );
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}
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break;
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case 0x01: /* SET SYSTEM TIME */
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FIXME( "SET SYSTEM TIME - not allowed\n" );
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break;
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case 0x02: /* GET REAL-TIME CLOCK TIME */
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TRACE( "GET REAL-TIME CLOCK TIME\n" );
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{
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SYSTEMTIME systime;
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GetLocalTime( &systime );
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SET_CH( context, BIN_TO_BCD(systime.wHour) );
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SET_CL( context, BIN_TO_BCD(systime.wMinute) );
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SET_DH( context, BIN_TO_BCD(systime.wSecond) );
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SET_DL( context, 0 ); /* FIXME: assume no daylight saving */
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RESET_CFLAG(context);
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}
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break;
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case 0x03: /* SET REAL-TIME CLOCK TIME */
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FIXME( "SET REAL-TIME CLOCK TIME - not allowed\n" );
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break;
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case 0x04: /* GET REAL-TIME CLOCK DATE */
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TRACE( "GET REAL-TIME CLOCK DATE\n" );
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{
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SYSTEMTIME systime;
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GetLocalTime( &systime );
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SET_CH( context, BIN_TO_BCD(systime.wYear / 100) );
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SET_CL( context, BIN_TO_BCD(systime.wYear % 100) );
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SET_DH( context, BIN_TO_BCD(systime.wMonth) );
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SET_DL( context, BIN_TO_BCD(systime.wDay) );
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RESET_CFLAG(context);
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}
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break;
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case 0x05: /* SET REAL-TIME CLOCK DATE */
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FIXME( "SET REAL-TIME CLOCK DATE - not allowed\n" );
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break;
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case 0x06: /* SET ALARM */
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FIXME( "SET ALARM - unimplemented\n" );
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break;
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case 0x07: /* CANCEL ALARM */
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FIXME( "CANCEL ALARM - unimplemented\n" );
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break;
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case 0x08: /* SET RTC ACTIVATED POWER ON MODE */
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case 0x09: /* READ RTC ALARM TIME AND STATUS */
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case 0x0a: /* READ SYSTEM-TIMER DAY COUNTER */
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case 0x0b: /* SET SYSTEM-TIMER DAY COUNTER */
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case 0x0c: /* SET RTC DATE/TIME ACTIVATED POWER-ON MODE */
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case 0x0d: /* RESET RTC DATE/TIME ACTIVATED POWER-ON MODE */
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case 0x0e: /* GET RTC DATE/TIME ALARM AND STATUS */
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case 0x0f: /* INITIALIZE REAL-TIME CLOCK */
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INT_BARF( context, 0x1a );
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break;
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case 0xb0:
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if (CX_reg(context) == 0x4d52 &&
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DX_reg(context) == 0x4349 &&
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AL_reg(context) == 0x01)
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{
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/*
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* Microsoft Real-Time Compression Interface (MRCI).
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* Ignoring this call indicates MRCI is not supported.
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*/
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TRACE( "Microsoft Real-Time Compression Interface - not supported\n" );
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}
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else
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{
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INT_BARF(context, 0x1a);
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}
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break;
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default:
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INT_BARF( context, 0x1a );
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}
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}
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