FASM provides a useful macro that saves us having to explicitly declare and initialise a string. Instead of providing a pointer to the variable which contains our string, we can just type in the string itself.
Thus the line that writes to the console becomes
invoke WriteConsole,[outhandle],"Hello World!",12,numwritten,0
Of course the problem with defining a string this way is that we can only use it once. However, if this is not a problem, it is a useful time saving device for us. Of course internally, the macro just replaces the string with a pointer to a string which is then declared elsewhere without us seeing it.top
Each call to WriteConsole simply writes to the screen immediately following the text just written. To go to a new line, we need to send a newline character to the console. This character has ASCII code 13, so we declare such a character as follows:
endline DB 13
To output this character to the console, we just output it as a one byte string, just as we would any other string: