failure of comparison in fill.asm

[hemasaad]

I wrote  a code that can fill the screen and also clear the screen and in the infinite loop I monitor the KBD memory register if 0 clear the screen else fill the screen with black.
but it fails at the comparison 3 of the test file.I don't know why. If someone want to help I can send to him the code to check.Thanks in advance

[cadet1620]

I will be happy to take a look at your code.

--Mark