1BPF_JA		0x00
2BPF_JEQ		0x10
3BPF_JGT		0x20
4BPF_JGE		0x30
5BPF_JSET	0x40
6BPF_JNE		0x50
7BPF_JSGT	0x60
8BPF_JSGE	0x70
9BPF_CALL	0x80
10BPF_EXIT	0x90
11BPF_JLT		0xa0
12BPF_JLE		0xb0
13BPF_JSLT	0xc0
14BPF_JSLE	0xd0
15