minivmac4ios/Mini vMac/mnvm_core/SCRNEMDV.c

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2016-05-01 17:05:36 +00:00
/* SCRNEMDV.c Copyright (C) 2006 Philip Cummins, Richard F. Bannister, Paul C. Pratt You can redistribute this file and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. You should have received a copy of the license along with this file; see the file COPYING. This file 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 license for more details. */ /* SCReeN EMulated DeVice Emulation of the screen in the Mac Plus. This code descended from "Screen-MacOS.c" in Richard F. Bannister's Macintosh port of vMac, by Philip Cummins. */ #ifndef AllFiles #include "SYSDEPNS.h" #include "MYOSGLUE.h" #include "ENDIANAC.h" #include "EMCONFIG.h" #include "GLOBGLUE.h" #endif #include "SCRNEMDV.h" #if ! IncludeVidMem #define kMain_Offset 0x5900 #define kAlternate_Offset 0xD900 #define kMain_Buffer (kRAM_Size - kMain_Offset) #define kAlternate_Buffer (kRAM_Size - kAlternate_Offset) #endif GLOBALPROC Screen_EndTickNotify(void) { ui3p screencurrentbuff; #if IncludeVidMem screencurrentbuff = VidMem; #else if (SCRNvPage2 == 1) { screencurrentbuff = get_ram_address(kMain_Buffer); } else { screencurrentbuff = get_ram_address(kAlternate_Buffer); } #endif Screen_OutputFrame(screencurrentbuff); }