by dw817


While I don't think PICO-8 has any appreciable VSYNC ability, you can indeed make use of this rare command to stop the screen from tearing when updating massive pixels as seen here:
If the HoldFrame flag is off, in immediate mode (and possibly not from a browser execution) my screen gets a wiggly line about 3/4 of the way down the screen when doing this update.
If you invoke the seldom used command HOLDFRAME() however, you can prevent against this for games played as an EXE or in immediate mode. Check the source for details.
HOPE THIS HELPS !
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