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how many cycles per frame?

 
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Mr ho
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PostPosted: Tue Jun 04, 2002 9:33 pm    Post subject: how many cycles per frame? Reply with quote

If I'm not mistaking it should be around 17766 per frame on a C64 PAL system right?

63 cycles per scanline * 282 scanlines = 17766
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AmiDog
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PostPosted: Wed Jun 05, 2002 6:11 am    Post subject: Reply with quote

The PAL C64 has 312 scanlines giving 63*312 = 19656 cycles. If the display is activated (without sprites), the VIC will steal 40 cycles for each badline which gives us 63*312 - (25*40) = 18656 cycles. Add some sprites and the free cycles will decrease even more.
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Mr ho
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PostPosted: Wed Jun 05, 2002 7:26 am    Post subject: Reply with quote

ahh.. thanks
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