Fix clipping bug in M68000 ADD/CMP/SUB instructions #178
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The source and target values need to be clipped to their instruction size. For instance, CMP.W should only compare the low 16-bits of the input values, not the entire 32-bits. This will fix severe graphics corruption in the game Alien Soldier for the Mega Drive, and likely more games as well.
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Thanks Near, and Kawa! |
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The source and target values need to be clipped to their instruction size.
For instance, CMP.W should only compare the low 16-bits of the input values, not the entire 32-bits.
This will fix severe graphics corruption in the game Alien Soldier for the Mega Drive, and likely more games as well.