;Prints help.

help:

mov si, .help
call println

ret

.help db "Input:", 0xd, 0xa, "  * Typing a character overwrites the cursor location.", 0xd, 0xa, "  * The erase (=tab) key erases the cursor location.", 0xd, 0xa, "  * The space and backspace keys move the cursor.", 0xd, 0xa, "Commands:", 0xd, 0xa, "  * echo: echoes its input.", 0xd, 0xa, "  * fileify: prints its input in FAT format if it is a valid filename.", 0xd, 0xa, "  * hello: a hello world program.", 0xd, 0xa, "  * help: you are reading it.", 0xd, 0xa, "  * keycode: echoes the BIOS code of a key.", 0x0