System Disk 02
Working with the pause command.

This is the second of “Dinkit’s” 50 or so system disks. “System Disk 02” is a copy of “System Disk 01” with a wait command add. You will find that this WAIT command , waits the sane amount of time whether running on a slowest PC/XT computer or a very fast PC computer. This is a very badly needed command that is missing in Ms-Dos. No need to have special CPU speed selector button. ( like the turbo button) or special soft ware to regulate the programs speed. We will start using this command in “System disk 03”. There is still no video screen, no keyboard, no sound, no nothing. But this starts changing in the next System Disks to come. If you conceder yourself a middle of the road user, this may be more then you way want to do. see below. Don’t download it. You won’t like. It is awful!   However if you are a serious user/experimenter and you are one that dabbles in some programing,  You might want to take a closer look.  There is a “do_program” procedure where you can add your code and experiments. In System Disk 02,There is only the WAIT command to play with, But with many more to come. this is how it works.

     mov    al,20   <---- place a number from 1 -256 here
     call     wait

In the above is  all you need to learn. Change the number in the code from 1 to 265 and change the wait time. And That is it, you pass this lesson. It is not necessary to learn the other code in System disk 02. Most of the Dinkit code will come to you  as you go through all of the Dinkit “Systen disks” “System disk 03” has the first I.O. tool added to it, “the PC speaker”

Download “System Disk 2”

Go to the download page and click on the “System disk 002” link