10 //#define TOM_VBLANK_DURATION_IN_SCANLINES 25
12 #define VIDEO_MODE_16BPP_CRY 0
13 #define VIDEO_MODE_24BPP_RGB 1
14 #define VIDEO_MODE_16BPP_DIRECT 2
15 #define VIDEO_MODE_16BPP_RGB 3
17 extern uint32 tom_width;
18 extern uint32 tom_height;
23 unsigned tom_byte_read(unsigned int offset);
24 unsigned tom_word_read(unsigned int offset);
25 void tom_byte_write(unsigned offset, unsigned data);
26 void tom_word_write(unsigned offset, unsigned data);
27 void tom_exec_scanline(int16 * backbuffer, int32 scanline, bool render);
28 uint32 tom_getVideoModeWidth(void);
29 uint32 tom_getVideoModeHeight(void);
30 uint8 tom_getVideoMode(void);
31 uint8 * tom_get_ram_pointer(void);
32 uint16 tom_get_hdb(void);
33 uint16 tom_get_vdb(void);
34 uint16 tom_get_scanline(void);
35 uint32 tom_getHBlankWidthInPixels(void);
37 // 68000 Interrupt bit positions (enabled at $F000E0)
39 /*#define IRQ_VBLANK 0
42 #define IRQ_OPFLAG IRQ_HBLANK
45 enum { IRQ_VBLANK = 0, IRQ_GPU, IRQ_OPFLAG, IRQ_TIMER, IRQ_DSP };
47 int tom_irq_enabled(int irq);
48 uint16 tom_irq_control_reg(void);
49 void tom_set_irq_latch(int irq, int enabled);
50 void tom_pit_exec(uint32 cycles);
51 void tom_set_pending_puck_int(void);
52 void tom_set_pending_timer_int(void);
53 void tom_set_pending_object_int(void);
54 void tom_set_pending_gpu_int(void);
55 void tom_set_pending_video_int(void);
56 void tom_reset_timer(void);
58 uint32 TOMGetSDLScreenPitch(void);