> > > MCFG_SCREEN_REFRESH_RATE( (XTAL_14MHz / 2) / (446 * 286) )
> >
> > That's showing you how it's calculated: 7 MHz pixel clock divided by 446 horizontal
> > pixels (including hblank) times 286 vertical scanlines (including vblank).
>
> ....I thought the 'lines drawn' are perpendicular to each axis. So, while the "446
> horizontal pixels" makes sense, as how far across to draw; the '286' is how many
> horizontal lines are drawn. That is, on a graph, lines drawn on the X axis are
> *vertical*....
I don't quite get what you're saying here. Yes, the 286 is how many horizontal lines ("scanlines" in TV technical parlance) are drawn. That's why the math is how it is.
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Re: How to change refresh rate in MAME drivers?
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