\r
#define Z80_STATE_SIZE 0x60\r
\r
-extern unsigned int last_z80_sync;\r
-extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
-extern int z80_cycle_aim;\r
-extern int z80_scanline;\r
-extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
-\r
#define z80_resetCycles() \\r
- last_z80_sync = SekCyclesDone(); \\r
- z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
+ timing.z80c_cnt = timing.z80c_aim = timing.z80_scanline = 0\r
\r
#define z80_cyclesDone() \\r
- (z80_cycle_aim - z80_cyclesLeft)\r
+ (timing.z80c_aim - z80_cyclesLeft)\r
\r
-#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
+#define cycles_68k_to_z80(x) ((x) * 3823 >> 13)\r
\r
// ----------------------- SH2 CPU -----------------------\r
\r
#define OSC_NTSC 53693100\r
#define OSC_PAL 53203424\r
\r
+// PicoVideo.debug_p\r
#define PVD_KILL_A (1 << 0)\r
#define PVD_KILL_B (1 << 1)\r
#define PVD_KILL_S_LO (1 << 2)\r
#define PVD_FORCE_B (1 << 6)\r
#define PVD_FORCE_S (1 << 7)\r
\r
+// PicoVideo.status, not part of real SR\r
+#define SR_PAL (1 << 0)\r
+#define SR_DMA (1 << 1)\r
+#define SR_HB (1 << 2)\r
+#define SR_VB (1 << 3)\r
+#define SR_ODD (1 << 4)\r
+#define SR_C (1 << 5)\r
+#define SR_SOVR (1 << 6)\r
+#define SR_F (1 << 7)\r
+#define SR_FULL (1 << 8)\r
+#define SR_EMPT (1 << 9)\r
+// not part of real SR\r
+#define PVS_ACTIVE (1 << 16)\r
+\r
struct PicoVideo\r
{\r
unsigned char reg[0x20];\r
unsigned char pending; // 1 if waiting for second half of 32-bit command\r
unsigned char type; // Command type (v/c/vsram read/write)\r
unsigned short addr; // Read/Write address\r
- int status; // Status bits\r
+ unsigned int status; // Status bits (SR) and extra flags\r
unsigned char pending_ints; // pending interrupts: ??VH????\r
signed char lwrite_cnt; // VDP write count during active display line\r
unsigned short v_counter; // V-counter\r
unsigned short debug; // raw debug register\r
unsigned char debug_p; // ... parsed: PVD_*\r
- unsigned char addr_u;\r
- unsigned char pad[0x0c];\r
+ unsigned char addr_u; // bit16 of .addr\r
+ unsigned char hint_cnt;\r
+ unsigned char pad[0x0b];\r
};\r
\r
struct PicoMisc\r
unsigned short pwm_fifo[2][4]; // [0] - current raw, others - fifo entries\r
};\r
\r
+struct PicoTiming\r
+{\r
+ unsigned int m68c_frame_start; // m68k cycles\r
+ unsigned int z80c_cnt; // z80 cycles done (this frame)\r
+ unsigned int z80c_aim;\r
+ int z80_scanline;\r
+};\r
+extern struct PicoTiming timing;\r
+\r
// area.c\r
extern void (*PicoLoadStateHook)(void);\r
\r
extern struct PicoSRAM SRam;\r
extern int PicoPadInt[2];\r
extern int emustatus;\r
-extern int scanlines_total;\r
extern void (*PicoResetHook)(void);\r
extern void (*PicoLineHook)(void);\r
PICO_INTERNAL int CheckDMA(void);\r
\r
#endif // PICO_INTERNAL_INCLUDED\r
\r
+// vim:shiftwidth=2:ts=2:expandtab\r