zink: implement i2b1
This shuold really have been implemented before starting to use these, but I guess I missed them.
Fixes a crash when starting a game in Warzone 2100.
Fixes: 7f6a491e ("zink: lower b2b to b2i")
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This shuold really have been implemented before starting to use these, but I guess I missed them.
Fixes a crash when starting a game in Warzone 2100.
Fixes: 7f6a491e ("zink: lower b2b to b2i")