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Dev notes — 2023-08-10

Name it "Cardiograph"
- homage to CARDIAC
- (and cardboard)
- and the special feature is that unlike other paper computers, this one has a graphical display
art note: "performing computation"

Keypad (and memory map)

Copy the CHIP-8 approach: one memory location that stores the current key pressed
(Only one key can be pressed at a time)
And then do a bitmask-y thing for the secret advanced mode, to add the ability to detecut multiple simultaneous keypresses

Display (and memory map)

Move display to $10?
Then $00 could contain a jump to the start of code, and we wouldn't have this strange "IP doesn't start at 0" situation
But, this might feel more complicated, and it would make working with the display a little less elegant...
C64 has random stuff at $0000
- How does the C64's PC get initialized ??

(Moved from readme:) Nice features that didn't fit

Hop IF< and hop IF>
MUL and DIV
Rotates and shifts

(Moved from readme:) Possible features, maybe someday

Timer (for a version in software/electronic-hardware)