Day 11

Reading Chars

	Reading chars is fun. Let's get to it!

DOS Service Function 1
	The code:

		mov ah,1
		int 21h

	That code will wait for a key to be pressed, output the char to the screen,
and return the ASCII code of the key in AL.

Keyboard BIOS Service Function 0
	You have to use the BIOS (Basic Input Output System) if you need to get input from
a non-ASCII char (like arrow keys). The ASCII code is returned in AL, with the scan code in
AH. You'll know there's a scan code if the ASCII code is zero. This Function does not output
the char to the screen.

	Code:
		mov ah,0
		int 16h   ; 16h is BIOS Keyboard Services

This Day In Review

	Input, very important!

	Until Next Time!,
		- Mike


Intro - Day 12