47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
#include "old_hardware_setup.h"
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void oldHardware_takeOver(struct OldHardwareSetup *oldHardwareSetup) {
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oldHardwareSetup->OldView = ((struct GfxBase *)GfxBase)->ActiView;
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oldHardwareSetup->OldCopper = (ULONG)((struct GfxBase *)GfxBase)->copinit;
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oldHardwareSetup->OldDMACON = custom.dmaconr | 0x8000;
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oldHardwareSetup->OldINTENA = custom.intenar | 0x8000;
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oldHardwareSetup->OldINTREQ = custom.intreqr | 0x8000;
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oldHardwareSetup->OldADKCON = custom.adkconr | 0x8000;
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// disable interrupts
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custom.intena = 0xc000;
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custom.intena = 0x3fff;
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LoadView(NULL);
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WaitTOF();
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WaitTOF();
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OwnBlitter();
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WaitBlit();
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Forbid();
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}
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void oldHardware_giveBack(struct OldHardwareSetup *oldHardwareSetup) {
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custom.cop1lc = oldHardwareSetup->OldCopper;
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LoadView(oldHardwareSetup->OldView);
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custom.dmacon = 0x7FFF;
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custom.dmacon = oldHardwareSetup->OldDMACON;
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custom.intena = 0x7FFF;
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custom.intena = oldHardwareSetup->OldINTENA;
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custom.intreq = 0x7FFF;
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custom.intreq = oldHardwareSetup->OldINTREQ;
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custom.adkcon = 0x7FFF;
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custom.adkcon = oldHardwareSetup->OldADKCON;
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WaitTOF();
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WaitTOF();
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WaitBlit();
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DisownBlitter();
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Permit();
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}
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