Refer

https://www.offensive-security.com/metasploit-unleashed/alphanumeric-shellcode/

http://note.heron.me/2014/11/alphanumeric-shellcode-of-execbinsh.html

https://nets.ec/Alphanumeric_shellcode

https://nets.ec/Ascii_shellcode

http://www.vividmachines.com/shellcode/shellcode.html#ps

http://inaz2.hatenablog.com/entry/2014/07/11/004655

http://inaz2.hatenablog.com/entry/2014/07/12/000007

http://inaz2.hatenablog.com/entry/2014/07/13/025626

http://blog.sina.com.cn/s/blog_67b113a101011fl9.html

http://www.c-jump.com/CIS77/CPU/x86/X77_0080_mod_reg_r_m_byte_reg.htm