>>11494151
>generally PSX and N64 ran in 320x240 and was stretched to 480
That's not how it works. When talking about the resolution, we really have to consider two things: one is the internal, digital resolution in the console's framebuffer and the other is the behavior of the analog signal that it outputs. The standard NTSC resolution is 480i. What this shorthand represents is that 240 even-numbered lines of picture get sent in one frame, then the 240 odd-numbered lines get send in the next one and so and so forth. There are 59.94 of such "half-frames" per second (or at least that's how it's supposed to be, because consoles will usually output at a different frequency that's very slightly higher or lower that this number; CRTs can handle this, but it might lead to about every 3000th frame or so getting dropped or duplicated on LCDs). It's possible to cheat this system and shift every other "half-frame" by one line, making them full frames in effect. 240 even-numbered lines of pictured get sent in one frame, 240 even-numbered lines of pictured ALSO get sent in the next frame and so on and so forth. The odd lines are always empty and remain black on the CRT display, that's how you get horizontal scanlines. This is what's called 240p. It's progressive and no longer interlaced because full frames get sent.

Here's the thing: the contents of a single line are a wave in analog signal, which means that the horizontal resolution doesn't really matter. It's not digital so it's impossible to speak about its number of pixels when it already gets displayed on the screen.

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how bad was emulation during the early 00s? What about gamecube? Ps2? do you find yourself fiddling with old outdated ones to this day?