10 #define VIDEO_MODE_16BPP_CRY 0
11 #define VIDEO_MODE_24BPP_RGB 1
12 #define VIDEO_MODE_16BPP_DIRECT 2
13 #define VIDEO_MODE_16BPP_RGB 3
15 // Virtual screen size stuff
17 // NB: This virtual width is for PWIDTH = 4
18 //#define VIRTUAL_SCREEN_WIDTH 320
20 #define VIRTUAL_SCREEN_WIDTH 326
21 #define VIRTUAL_SCREEN_HEIGHT_NTSC 240
22 #define VIRTUAL_SCREEN_HEIGHT_PAL 256
24 // 68000 Interrupt bit positions (enabled at $F000E0)
26 enum { IRQ_VIDEO = 0, IRQ_GPU, IRQ_OPFLAG, IRQ_TIMER, IRQ_DSP };
32 uint8_t TOMReadByte(uint32_t offset, uint32_t who = UNKNOWN);
33 uint16_t TOMReadWord(uint32_t offset, uint32_t who = UNKNOWN);
34 void TOMWriteByte(uint32_t offset, uint8_t data, uint32_t who = UNKNOWN);
35 void TOMWriteWord(uint32_t offset, uint16_t data, uint32_t who = UNKNOWN);
37 void TOMExecHalfline(uint16_t halfline, bool render);
38 uint32_t TOMGetVideoModeWidth(void);
39 uint32_t TOMGetVideoModeHeight(void);
40 uint8_t TOMGetVideoMode(void);
41 uint8_t * TOMGetRamPointer(void);
42 uint16_t TOMGetHDB(void);
43 uint16_t TOMGetVDB(void);
44 void TOMDumpIORegistersToLog(void);
47 int TOMIRQEnabled(int irq);
48 uint16_t TOMIRQControlReg(void);
49 void TOMSetIRQLatch(int irq, int enabled);
50 void TOMExecPIT(uint32_t cycles);
51 void TOMSetPendingJERRYInt(void);
52 void TOMSetPendingTimerInt(void);
53 void TOMSetPendingObjectInt(void);
54 void TOMSetPendingGPUInt(void);
55 void TOMSetPendingVideoInt(void);
56 void TOMResetPIT(void);
60 extern uint32_t tomWidth;
61 extern uint32_t tomHeight;
62 extern uint8_t tomRam8[];
63 extern uint32_t tomTimerPrescaler;
64 extern uint32_t tomTimerDivider;
65 extern int32_t tomTimerCounter;
67 extern uint32_t screenPitch;
68 extern uint32_t * screenBuffer;