-change the cursor with the mouse or with the keyboard
-displays symbols on the left and in opcode arguments
-press tab to toggle displaying of symbols
-click on the highlighted line to toggle a breakpoint at that position
-press right to follow a branch and left to go back a level
Add missing #include to various files.
strings.h isn't provided by MSVC so we don't include it there; it's needed
for other OSes/compilers.
Get rid of pre-ISO-C malloc.h includes; malloc is provided by stdlib.h.
Fixes some linuxisms.
Prepend __builtin_ to __clear_cache, calling it without the prefix is a
GNU extension.
