Good job
My method involves using the already-made "kode garage" program (on kodewerx), on the joker generator select "hold these, release these" and choose the button combo you want (put them on both sides)
the second half will be the value to "tst"
for example, i selected L+R+A
the output value will be
Code:
94000130 FCFE0301
so, #0x301 will be the value to "tst"