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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. */
1.1.1.18! root 11: #define CSMASK_OCS 0
1.1.1.7 root 12: #define CSMASK_ECS_AGNUS 1
13: #define CSMASK_ECS_DENISE 2
1.1.1.18! root 14: #define CSMASK_FULL_ECS 3
1.1.1.7 root 15: #define CSMASK_AGA 4
16:
1.1.1.15 root 17: uae_u32 get_copper_address(int copno);
18:
1.1.1.5 root 19: extern void custom_init (void);
20: extern void customreset (void);
21: extern int intlev (void);
22: extern void dumpcustom (void);
1.1 root 23:
1.1.1.5 root 24: extern void do_disk (void);
1.1.1.9 root 25: extern void do_copper (void);
1.1 root 26:
1.1.1.3 root 27: extern void notice_new_xcolors (void);
28: extern void notice_screen_contents_lost (void);
1.1.1.5 root 29: extern void init_row_map (void);
1.1.1.3 root 30:
1.1.1.15 root 31: extern void custom_prepare_savestate (void);
32:
1.1.1.3 root 33: extern int picasso_requested_on;
34: extern int picasso_on;
35:
36: /* Set to 1 to leave out the current frame in average frame time calculation.
37: * Useful if the debugger was active. */
1.1 root 38: extern int bogusframe;
39:
1.1.1.3 root 40: extern uae_u16 dmacon;
41: extern uae_u16 intena,intreq;
1.1.1.2 root 42:
43: extern int current_hpos (void);
1.1.1.3 root 44: extern int vpos;
1.1.1.2 root 45:
1.1.1.15 root 46: extern int find_copper_record (uaecptr, int *, int *);
47:
1.1.1.12 root 48: extern int n_frames;
49:
1.1.1.8 root 50: STATIC_INLINE int dmaen (unsigned int dmamask)
1.1 root 51: {
52: return (dmamask & dmacon) && (dmacon & 0x200);
53: }
54:
55: #define SPCFLAG_STOP 2
1.1.1.9 root 56: #define SPCFLAG_COPPER 4
57: #define SPCFLAG_INT 8
58: #define SPCFLAG_BRK 16
1.1 root 59: #define SPCFLAG_EXTRA_CYCLES 32
60: #define SPCFLAG_TRACE 64
61: #define SPCFLAG_DOTRACE 128
62: #define SPCFLAG_DOINT 256
63: #define SPCFLAG_BLTNASTY 512
64: #define SPCFLAG_EXEC 1024
1.1.1.2 root 65: #define SPCFLAG_MODE_CHANGE 8192
1.1.1.18! root 66: #define SPCFLAG_RESTORE_SANITY 16384
1.1 root 67:
1.1.1.3 root 68: extern uae_u16 adkcon;
1.1 root 69:
1.1.1.3 root 70: extern unsigned int joy0dir, joy1dir;
71: extern int joy0button, joy1button;
72:
1.1.1.4 root 73: extern void INTREQ (uae_u16);
1.1.1.15 root 74: extern void INTREQ_0 (uae_u16);
1.1.1.4 root 75: extern uae_u16 INTREQR (void);
1.1 root 76:
1.1.1.7 root 77: /* maximums for statically allocated tables */
78:
1.1.1.18! root 79: #define MAXHPOS 256
! 80: #define MAXVPOS 576
1.1.1.7 root 81:
82: /* PAL/NTSC values */
83:
1.1.1.2 root 84: /* The HRM says: The vertical blanking area (PAL) ranges from line 0 to line 29,
85: * and no data can be displayed there. Nevertheless, we lose some overscan data
1.1.1.7 root 86: * if minfirstline is set to 29. */
87:
88: #define MAXHPOS_PAL 227
89: #define MAXHPOS_NTSC 227
90: #define MAXVPOS_PAL 312
91: #define MAXVPOS_NTSC 262
1.1.1.18! root 92: #define VBLANK_ENDLINE_PAL 27
! 93: #define VBLANK_ENDLINE_NTSC 28
! 94: #define VBLANK_SPRITE_PAL 25
! 95: #define VBLANK_SPRITE_NTSC 20
1.1.1.7 root 96: #define VBLANK_HZ_PAL 50
97: #define VBLANK_HZ_NTSC 60
98:
99: extern int maxhpos, maxvpos, minfirstline, vblank_endline, numscrlines, vblank_hz;
100: extern unsigned long syncbase;
101: #define NUMSCRLINES (maxvpos+1-minfirstline+1)
1.1 root 102:
103: #define DMA_AUD0 0x0001
104: #define DMA_AUD1 0x0002
105: #define DMA_AUD2 0x0004
106: #define DMA_AUD3 0x0008
107: #define DMA_DISK 0x0010
108: #define DMA_SPRITE 0x0020
109: #define DMA_BLITTER 0x0040
110: #define DMA_COPPER 0x0080
111: #define DMA_BITPLANE 0x0100
1.1.1.10 root 112: #define DMA_MASTER 0x0200
1.1 root 113: #define DMA_BLITPRI 0x0400
1.1.1.2 root 114:
115: extern unsigned long frametime, timeframes;
1.1.1.17 root 116: extern int plfstrt, plfstop, plffirstline, plflastline;
1.1.1.2 root 117:
1.1.1.14 root 118: /* 100 words give you 1600 horizontal pixels. Should be more than enough for
119: * superhires. Don't forget to update the definition in genp2c.c as well.
120: * needs to be larger for superhires support */
121: #define MAX_WORDS_PER_LINE 100
1.1.1.3 root 122:
123: extern uae_u32 hirestab_h[256][2];
124: extern uae_u32 lorestab_h[256][4];
125:
126: extern uae_u32 hirestab_l[256][1];
127: extern uae_u32 lorestab_l[256][2];
1.1.1.11 root 128:
129: /* AGA mode color lookup tables */
130: extern unsigned int xredcolors[256], xgreencolors[256], xbluecolors[256];
1.1.1.13 root 131:
1.1.1.16 root 132: extern int bpl_off[8];
1.1.1.15 root 133:
1.1.1.13 root 134: /* get resolution from bplcon0 */
135: #define GET_RES(CON0) (((CON0) & 0x8000) ? RES_HIRES : ((CON0) & 0x40) ? RES_SUPERHIRES : RES_LORES)
136: /* get sprite width from FMODE */
137: #define GET_SPRITEWIDTH(FMODE) ((((FMODE) >> 2) & 3) == 3 ? 64 : (((FMODE) >> 2) & 3) == 0 ? 16 : 32)
138: /* Compute the number of bitplanes from a value written to BPLCON0 */
139: #define GET_PLANES(x) ((((x) >> 12) & 7) | (((x) & 0x10) >> 1))
140:
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