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Annotation of uae/src/include/custom.h, revision 1.1.1.1

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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