Same could be done using radare2 [1] tool in debug mode ("r2 -d") and using "dxa" command, to write an opcode using assembly language and execute it in place. O

Same could be done using radare2 [1] tool in debug mode ("r2 -d") and using "dxa" command, to write an opcode using assembly language and execute it in place. Or even using simple C-like language (called regg [2]) to do the same. P.S. It's always better to try radare2 from git, since it's very actively developed. [1] http://rada.re http://rada.re [2] https://github.com/radare/radare2/tree/master/libr/egg https://github.com/radare/radare2/tree/master/libr/egg