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