ADD_ITEM_EQEFFECT and opcode 233 - how to increment proficiency?

[subtledoctor]

The EE version of opcode 233 has the option to increment proficiencies instead of just setting them.  This is somehow squeezed into bytes 3 and 4 of the parameter2 field.  Can I set this value in Weidu?  Right now I have:

Code: [Select]

LPF ADD_ITEM_EQEFFECT INT_VAR opcode = 233 target = 1 parameter1 = 1 parameter2 = 134 timing = 2 END
When I look at affected items in NI, parameter 1 is properly set (1 pip, active class) and bytes 1-2 of parameter 2 are properly set (stat 134, ExtraProficiency20).  But bytes 3-4 are set to 0 and I need them to be 1.

Any ideas how to do that?

[Wisp]

For example:

Code: [Select]

LPF ADD_ITEM_EQEFFECT INT_VAR opcode = 233 target = 1 parameter1 = 1 parameter2 = (134 BOR BIT16) timing = 2 END
I haven't tested it (edit: in the sense it produces the desired in-game effect), but this sets the p2 value to 86000100h, i.e., "byte 1" has the value 134 and "byte 3" has the value 1.