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1.1 ! root 1: /* ! 2: * UAE - The Un*x Amiga Emulator ! 3: * ! 4: * custom chip support ! 5: * ! 6: * (c) 1995 Bernd Schmidt ! 7: */ ! 8: ! 9: extern void custom_init(void); ! 10: extern void customreset(void); ! 11: extern int intlev(void); ! 12: extern void dumpcustom(void); ! 13: ! 14: extern void do_disk(void); ! 15: ! 16: extern int inhibit_frame; ! 17: extern int bogusframe; ! 18: ! 19: extern UWORD dmacon; ! 20: extern UWORD intena,intreq; ! 21: static __inline__ int dmaen(UWORD dmamask) ! 22: { ! 23: return (dmamask & dmacon) && (dmacon & 0x200); ! 24: } ! 25: ! 26: #define SPCFLAG_BLIT 1 ! 27: #define SPCFLAG_STOP 2 ! 28: #define SPCFLAG_DISK 4 ! 29: #define SPCFLAG_INT 8 ! 30: #define SPCFLAG_BRK 16 ! 31: #define SPCFLAG_EXTRA_CYCLES 32 ! 32: #define SPCFLAG_TRACE 64 ! 33: #define SPCFLAG_DOTRACE 128 ! 34: #define SPCFLAG_DOINT 256 ! 35: #define SPCFLAG_BLTNASTY 512 ! 36: #define SPCFLAG_EXEC 1024 ! 37: #define SPCFLAG_EMULTRAP 2048 ! 38: ! 39: #define PRESERVED_FLAGS (SPCFLAG_DISK|SPCFLAG_BLIT|SPCFLAG_BLTNASTY) ! 40: ! 41: extern int dskdmaen; ! 42: extern UWORD adkcon; ! 43: ! 44: extern int max_diwstop, prev_max_diwstop; ! 45: ! 46: extern UWORD joy0dir; ! 47: extern int joy0button; ! 48: ! 49: extern void INTREQ(UWORD); ! 50: extern UWORD INTREQR(void); ! 51: ! 52: #define maxhpos 227 ! 53: #define maxvpos 312 ! 54: #define minfirstline 29 ! 55: #define numscrlines (maxvpos+1-minfirstline+1) ! 56: ! 57: #define DMA_AUD0 0x0001 ! 58: #define DMA_AUD1 0x0002 ! 59: #define DMA_AUD2 0x0004 ! 60: #define DMA_AUD3 0x0008 ! 61: #define DMA_DISK 0x0010 ! 62: #define DMA_SPRITE 0x0020 ! 63: #define DMA_BLITTER 0x0040 ! 64: #define DMA_COPPER 0x0080 ! 65: #define DMA_BITPLANE 0x0100 ! 66: #define DMA_BLITPRI 0x0400 ! 67: /* ! 68: struct bltinfo { ! 69: int blitzero; ! 70: UWORD blitpreva,blitprevb,blitashift,blitbshift; ! 71: UWORD bltadat,bltbdat,bltcdat,bltddat,bltafwm,bltalwm; ! 72: UWORD vblitsize,hblitsize; ! 73: WORD bltamod,bltbmod,bltcmod,bltdmod; ! 74: }; ! 75: ! 76: extern void do_blitter(void); ! 77: ! 78: typedef void blitter_func(UWORD *, UWORD *, UWORD *, UWORD *, struct bltinfo *); ! 79: ! 80: extern blitter_func *blitfunc_dofast[256]; ! 81: extern blitter_func *blitfunc_dofast_desc[256]; ! 82: */
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