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1.1.1.3 root 1: /*
1.1 root 2: * UAE - The Un*x Amiga Emulator
1.1.1.3 root 3: *
1.1 root 4: * custom chip support
5: *
6: * (c) 1995 Bernd Schmidt
7: */
8:
1.1.1.7 root 9: /* These are the masks that are ORed together in the chipset_mask option.
10: * If CSMASK_AGA is set, the ECS bits are guaranteed to be set as well. */
11: #define CSMASK_ECS_AGNUS 1
12: #define CSMASK_ECS_DENISE 2
13: #define CSMASK_AGA 4
14:
1.1.1.5 root 15: extern void custom_init (void);
16: extern void customreset (void);
17: extern int intlev (void);
18: extern void dumpcustom (void);
1.1 root 19:
1.1.1.5 root 20: extern void do_disk (void);
1.1.1.9 root 21: extern void do_copper (void);
1.1 root 22:
1.1.1.3 root 23: extern void notice_new_xcolors (void);
24: extern void notice_screen_contents_lost (void);
1.1.1.5 root 25: extern void init_row_map (void);
1.1.1.3 root 26:
27: extern int picasso_requested_on;
28: extern int picasso_on;
29:
30: /* Set to 1 to leave out the current frame in average frame time calculation.
31: * Useful if the debugger was active. */
1.1 root 32: extern int bogusframe;
33:
1.1.1.3 root 34: extern uae_u16 dmacon;
35: extern uae_u16 intena,intreq;
1.1.1.2 root 36:
37: extern int current_hpos (void);
1.1.1.3 root 38: extern int vpos;
1.1.1.2 root 39:
1.1.1.12 root 40: extern int n_frames;
41:
1.1.1.8 root 42: STATIC_INLINE int dmaen (unsigned int dmamask)
1.1 root 43: {
44: return (dmamask & dmacon) && (dmacon & 0x200);
45: }
46:
47: #define SPCFLAG_STOP 2
1.1.1.9 root 48: #define SPCFLAG_COPPER 4
49: #define SPCFLAG_INT 8
50: #define SPCFLAG_BRK 16
1.1 root 51: #define SPCFLAG_EXTRA_CYCLES 32
52: #define SPCFLAG_TRACE 64
53: #define SPCFLAG_DOTRACE 128
54: #define SPCFLAG_DOINT 256
55: #define SPCFLAG_BLTNASTY 512
56: #define SPCFLAG_EXEC 1024
1.1.1.2 root 57: #define SPCFLAG_MODE_CHANGE 8192
1.1 root 58:
1.1.1.3 root 59: extern uae_u16 adkcon;
1.1 root 60:
1.1.1.3 root 61: extern unsigned int joy0dir, joy1dir;
62: extern int joy0button, joy1button;
63:
1.1.1.4 root 64: extern void INTREQ (uae_u16);
65: extern uae_u16 INTREQR (void);
1.1 root 66:
1.1.1.7 root 67: /* maximums for statically allocated tables */
68:
69: #define MAXHPOS 227
70: #define MAXVPOS 312
71:
72: /* PAL/NTSC values */
73:
1.1.1.2 root 74: /* The HRM says: The vertical blanking area (PAL) ranges from line 0 to line 29,
75: * and no data can be displayed there. Nevertheless, we lose some overscan data
1.1.1.7 root 76: * if minfirstline is set to 29. */
77:
78: #define MAXHPOS_PAL 227
79: #define MAXHPOS_NTSC 227
80: #define MAXVPOS_PAL 312
81: #define MAXVPOS_NTSC 262
82: #define MINFIRSTLINE_PAL 21
83: #define MINFIRSTLINE_NTSC 18
84: #define VBLANK_ENDLINE_PAL 29
85: #define VBLANK_ENDLINE_NTSC 24
86: #define VBLANK_HZ_PAL 50
87: #define VBLANK_HZ_NTSC 60
88:
89: extern int maxhpos, maxvpos, minfirstline, vblank_endline, numscrlines, vblank_hz;
90: extern unsigned long syncbase;
91: #define NUMSCRLINES (maxvpos+1-minfirstline+1)
1.1 root 92:
93: #define DMA_AUD0 0x0001
94: #define DMA_AUD1 0x0002
95: #define DMA_AUD2 0x0004
96: #define DMA_AUD3 0x0008
97: #define DMA_DISK 0x0010
98: #define DMA_SPRITE 0x0020
99: #define DMA_BLITTER 0x0040
100: #define DMA_COPPER 0x0080
101: #define DMA_BITPLANE 0x0100
1.1.1.10 root 102: #define DMA_MASTER 0x0200
1.1 root 103: #define DMA_BLITPRI 0x0400
1.1.1.2 root 104:
105: extern unsigned long frametime, timeframes;
106:
1.1.1.14! root 107: /* 100 words give you 1600 horizontal pixels. Should be more than enough for
! 108: * superhires. Don't forget to update the definition in genp2c.c as well.
! 109: * needs to be larger for superhires support */
! 110: #define MAX_WORDS_PER_LINE 100
1.1.1.3 root 111:
112: extern uae_u32 hirestab_h[256][2];
113: extern uae_u32 lorestab_h[256][4];
114:
115: extern uae_u32 hirestab_l[256][1];
116: extern uae_u32 lorestab_l[256][2];
1.1.1.11 root 117:
118: /* AGA mode color lookup tables */
119: extern unsigned int xredcolors[256], xgreencolors[256], xbluecolors[256];
1.1.1.13 root 120:
121: /* get resolution from bplcon0 */
122: #define GET_RES(CON0) (((CON0) & 0x8000) ? RES_HIRES : ((CON0) & 0x40) ? RES_SUPERHIRES : RES_LORES)
123: /* get sprite width from FMODE */
124: #define GET_SPRITEWIDTH(FMODE) ((((FMODE) >> 2) & 3) == 3 ? 64 : (((FMODE) >> 2) & 3) == 0 ? 16 : 32)
125: /* Compute the number of bitplanes from a value written to BPLCON0 */
126: #define GET_PLANES(x) ((((x) >> 12) & 7) | (((x) & 0x10) >> 1))
127:
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