// Constants
	const int VIDEO_SCANNER_6502_CYCLES = 17030;

// Globals (Public)
	extern uint16_t g_nVideoClockVert;
	extern uint16_t g_nVideoClockHorz;

// Prototypes (Public) ________________________________________________
	extern void     NTSC_SetVideoMode( int bVideoModeFlags );
	extern void     NTSC_SetVideoStyle();
	extern void     NTSC_SetVideoTextMode( int cols );
	extern uint16_t NTSC_VideoGetScannerAddress( unsigned long cycles6502 );
	extern void     NTSC_VideoInit( uint8_t *pFramebuffer );
	extern void     NTSC_VideoInitAppleType ();
	extern bool     NTSC_VideoIsVbl();
	extern void     NTSC_VideoUpdateCycles( long cycles6502 );