mirror of
https://github.com/AppleWin/AppleWin.git
synced 2024-12-24 07:30:24 +00:00
122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
/*
|
|
AppleWin : An Apple //e emulator for Windows
|
|
|
|
Copyright (C) 2008, Michael Pohoreski
|
|
|
|
AppleWin 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.
|
|
|
|
AppleWin 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with AppleWin; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/* Description: Generic No-Slot Clock
|
|
*
|
|
* Author: Michael Pohoreski
|
|
*/
|
|
|
|
#include "StdAfx.h"
|
|
#pragma hdrstop
|
|
#include "..\resource\resource.h"
|
|
// #include "resource.h" // BUG -- wrong resource!!!
|
|
#include <time.h>
|
|
|
|
/*
|
|
|
|
Old:
|
|
|
|
File: PRODOS
|
|
BLOAD PRODOS,TSYS,A$2000
|
|
CALL-151
|
|
2F76:60 5F 5E 5D 5C 5C 60
|
|
File offset $0F76-$0F7C:
|
|
|
|
|
|
ProDOS has a built-in clock driver that queries a clock/calendar card for the date and time.
|
|
After the routine stores that information in the ProDOS Global Page ($BF90-$BF93),
|
|
either ProDOS or your own application programs can use it. See Figure 6-1.
|
|
|
|
Figure 6-1. ProDOS Date and Time Locations
|
|
|
|
49041 ($BF91) 49040 ($BF90)
|
|
|
|
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
|
|
DATE: | year | month | day |
|
|
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
|
|
|
|
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
|
|
TIME: | hour | | minute |
|
|
+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+
|
|
|
|
49043 ($BF93) 49042 ($BF92)
|
|
|
|
|
|
ProDOS recognizes a clock card if the following bytes are present in
|
|
the Cn00 ROM:
|
|
|
|
$Cn00 = $08
|
|
$Cn02 = $28
|
|
$Cn04 = $58
|
|
$Cn06 = $70
|
|
|
|
The address is preceded by a $4C (JMP) if a clock card is recognized,
|
|
or by a $60 (RTS) if not.
|
|
|
|
The ProDOS clock driver uses the following addresses for its I/O to the
|
|
clock:
|
|
|
|
Cn08 - READ entry point
|
|
Cn0B - WRITE entry point
|
|
|
|
The accumulator is loaded with an #A3 before the JSR to the WRITE
|
|
*/
|
|
|
|
tm* Clock_Util_GetTime()
|
|
{
|
|
time_t tRawTime;
|
|
time( &tRawTime );
|
|
|
|
tm* pTime = localtime ( &tRawTime );
|
|
if( pTime ) {
|
|
mktime( pTime ); // get day of week: tm_wday
|
|
}
|
|
return pTime;
|
|
}
|
|
|
|
void Clock_Util_ConvertTimeToProdos( tm *pTime, unsigned char *pProDosBytes4_ )
|
|
{
|
|
if( pTime )
|
|
{
|
|
BYTE nMonth = pTime->tm_mon + 1;
|
|
|
|
BYTE nDate1 = 0
|
|
| ((pTime->tm_mday & 0x1F) << 0)
|
|
| ((nMonth & 0x0F) << 5);
|
|
BYTE nDate2 = 0
|
|
| ((pTime->tm_year % 100) << 1)
|
|
| (nMonth >> 3) & 1;
|
|
BYTE nTime1 = (pTime->tm_min & 0x3F); // 60 = max(64) 0x3F
|
|
BYTE nTime2 = (pTime->tm_hour & 0x1F); // 24 = max(32) 0x1F
|
|
pProDosBytes4_[0] = nDate1;
|
|
pProDosBytes4_[1] = nDate2;
|
|
pProDosBytes4_[2] = nTime1;
|
|
pProDosBytes4_[3] = nTime2;
|
|
}
|
|
}
|
|
|
|
void Clock_Generic_UpdateProDos()
|
|
{
|
|
tm* pTime = Clock_Util_GetTime();
|
|
Clock_Util_ConvertTimeToProdos( pTime, &mem[ 0xBF90 ] ); // ProDos date/time buffer
|
|
}
|