Blueprints
Blueprint from a picture
The picture becomes pixel art made of game blocks: a wall, a floor or a relief. Build it layer by layer from the bottom up.
Pixel art settings
A real 8-bit accumulator computer made of 500+ gates. The blue switches are number A, the orange ones B, and three purple ones pick the operation (in binary, lowest bit on the right): 0 add, 1 subtract, 2 AND, 3 OR, 4 XOR, 5 NOT A, 6 shift left, 7 shift right. The green “Save” button stores the answer in flip-flop memory. The light blue “Memory as A” switch takes number A from memory, so you can work step by step, for example adding B again and again. The top shows the chosen operation, the answer as three digits and the carry and zero flags; memory is at the bottom.
Control panel
Block outlines are not drawn on very large builds so everything stays fast. You can still select a block by clicking it.