To make programming easier there are some common functions that can be included in your program. To make your program use functions defined in other file you should use the INCLUDE directive followed by a file name. Compiler automatically searches for the file in the same folder where the source file is located, and if it cannot find the file there - it searches in Inc folder.
emu8086.inc defines the following macros:
PUTC char - macro with 1 parameter, prints out an ASCII char at current cursor position.
GOTOXY col, row - macro with 2 parameters, sets cursor position.
PRINT string - macro with 1 parameter, prints out a string.
PRINTN string - macro with 1 parameter, prints out a string. The same as PRINT but automatically adds "carriage return" at the end of the string.
CURSOROFF - turns off the text cursor.
CURSORON - turns on the text cursor.