Bug fixed and added new script feature

[ghost]

• Bugs fixed in shell.
• Implemented shell history circular retrieval.
• Added support for downkey arrow in shell.
• Added bochsconfig script and --config bochs option for start.sh to add romimagebios and vgaromimagebios paths in .bochsrc.
• Updated documentation (about this new script feature).
• Minor cleaning

[amanuel2]

I would recommend to start use #include and #include to get types like uint32_t etc... rather than use naked types such as unsigned int etc...

[ghost]

You are right, i know about this issue, i will have to discuss about this change with inuyasha

[inuyasha82]

Some comments

1. Don't put temporary code (look in task_utils.c, your comment contains a question, that it means that it is not discussed yet, in a pull request you should put only the code that are 100% ready to merge.
2. Ideally a good practice is to create a pull request for every single feature implemented (if the new code add some bugs, it will be easied to identify and they are easier to read :) ), so in theory you should have created at least one pull request for the shell history, and one for the bochsconfig option.

[ghost]

Ok, single feature -> single pull request, i will remember this important rule for next pulls.

[inuyasha82]

There is an issue in the history feature, if you go back to a specific command, and then delete the current selection using backspace, the command is deleted from the screen, but not deleted from the buffer, and if you press enter that command is still executed.

[ghost]

Strange, i cannot reproduce the bug. If i delete completely a command from history with backspace i got this:

root~:/root# root~:/root#

All seems to work