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David Gow
8eb0395a68
Add the F10+V debug cheat to add extra VBLs per frame. This makes it easier to debug issues with both different game performance (e.g., physics issues when tics/frame > rf_minTics), but also with video versus game timing. (The plan is to rework some of the timing code to allow WaitVBLs to actually use vsync on some setups. We already do this in the EGA/DOS backend, but not on other systems (where we rarely run at 70Hz). It'll also make supporting the CRT Terminator easier, which allows us to read the current scanline and so detect VBlank more quickly and reliably. And maybe we'll do an entirely-VSync based timing mode like the juj's hacks of Keen and FitF.)