Kazpy computer 2 (with dvd screensaver program)
16 bit computer:
Includes dvd screensaver program:
Start computer: press green button
Stop computer: press red button
Reset computer: press blue button while stopped.
Note: When swapping/modifying the program cards, press the blue reset button to force the card reader
to scan the card, otherwise it will use the data it previously scanned
16 buttons at front: computer accessible buttons
(unused in dvd screensaver program)
DVD screensaver program:
will show the screensaver at the front screen
number display shows dvd coordinates with
y value multiplied by 32
2 additional program cards for the computer:
https://steamcommunity.com/sharedfiles/filedetails/?id=3350705564
For programming the computer:
The cpu’s instructions are available at the CPU’s workshop page:
https://steamcommunity.com/sharedfiles/filedetails/?id=3338211370
When using the program card to program the computer, know that the card reader’s sensors are set to sense the color black.
if the card’s block are colored black, their corresponding memory bit is set to off. this allows you to use colors to color code the instructions
Computer’s memory addresses:
0-1 -> tell the cpu to jump to rom location
4 -> read to see what buttons are held
5 -> read to see what buttons were pressed
6 -> like address 5 but if no buttons were pressed it will wait until it gets pressed
15 -> number display (write/read)
27 -> (1 bit) turn on/off 2hz counter
28 -> reading this address will read the counter,
writing to this address will cause the cpu to wait until the 2hz counter has a bigger value than the cpu’s inputted value.
After the waiting period ends it will reset the counter.
29 -> (1 bit) turn on/off screen buffer
30 -> reset buffer
31 -> update screen (show screen buffer)
256-319 -> screen buffer memory space
320-383 -> screen buffer memory space (repeat)
Note: the screen buffer operates exactly the same as the 128 byte ram installed on this computer
4096-4159 -> 128 byte ram
32768-32831 -> 128 byte rom
