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Space Invasion Weirdness #303
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Fails on GBA, CGB-E. Usually (*) okay on CGB-0, B, C, D. (*) Strangeness depends on random power-up state. Sometimes it generates patterns where some invaders will shoot oddly-placed, junk-looking shots. Game also fails to load on latest master commit It's a MBC1 clone.
Or you can check others' work here which I think |
BGB emulates a CGB A-C model. Your EverDrive is highly likely A-C revision. Rev D-E + GBA has problems.
Game doesn't initialize a memory value at C7B6, which very often is FF on the A-C models and avoids the problem. It can get an odd value like 7F but the error shows up more rarely. SameBoy uses CGB E by default, which can be switched. Otherwise it's not an emulator error. |
The Unlicensed Game Space Invasion (a Space Invaders clone by Thalamus Interactive) works okay until the game starts. When the game starts, the shots from the enemies behave very strangely. The shots use the wrong sprites at times, sometimes will drop down nowhere near an enemy and sometimes background titles get redrawn for no apparent reason. This behavior does not appear when the game is run on an original GBC with an EverDrive or on bgb.
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