A brief tutorial to get you started using the on-line assembler at http://www.Asm80.com
Using the Small Computer Monitor to write machine code programs is tedious and very soon you will be wanting a proper assembler.
There are a number of assemblers available, but a really nice option is to use an on-line assembler. It is platform independent and no installation is required.
The document below is a tutorial aimed at those who have studied the Small Computer Monitor tutorial and wish to progress to a proper assembler.