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Cool post!

The capture process sounds much more complicated than necessary. There are emulators that can capture the output as APNG/GIF/... If you really want to make sure that you have every frame, a good emulator also supports manual frame stepping without having to use the debugger.

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Thank you!

Yeah I definitely could have improved the capture method. It happens to be that I'm already familiar enough with GBZ80 assembly, but given how tedious taking the actual screenshots was I would opt for a less complicated solution in the future.

You could also use a screen recorder with a non-lossy codec and grab the frames from that

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