I was wondering if there is a cil code list, I think 16 = false and 17 = true, but not 100% sure, also think -1 = 0 , but if anyone has a website to help with this that would be great.
16 = false
17 = true ?
You can find a complete listing of all opcodes in Partition III of ECMA-335, but as for the specific instructions you listed:
02 (0x02) = ldarg.0
16 (0x10) = starg.s
17 (0x11) = ldloc.s
18 (0x12) = ldloca.s
19 (0x13) = stloc.s
0x16 = ldc.i4.0 // could be a 0 or false or '\0' ... the exact type depends on how it's used.
0x17 = ldc.i4.1 // could be a 1 or true or '\u0001' ... again, the exact type depends on how it's used.
0x18 = ldc.i4.2
0x19 = ldc.i4.3