A branch target which is a 16-bit signed integer treated as a PC-relative dword offset.
This operand may be specified as one of the following:
Examples:
offset = 30
label_1:
label_2 = . + 4
s_branch 32
s_branch offset + 2
s_branch label_1
s_branch label_2
s_branch label_3
s_branch label_4
label_3 = label_2 + 4
label_4: