A basic binary calculator. Written in JavaScript. I made it to help visualize basic bit manipulation operations.
Set input values in the x and y registers in binary by clicking any bit to flip it or in decimal or hexadecimal by clicking a field and entering a number. The Left and Right arrow keys switch between decimal and hexadecimal input.
Then select an operation above the z register. The Tab key cycles through operations (Shift+Tab to cycle in reverse).
The answer is automatically computed and displayed in the z register whenever an input value or the selected operation changes. The answer cannot be edited in place, but you can use the → x or → y buttons next to the answer to copy it to one of the input registers (or use the x or y hotkeys).
The Up and Down arrows switch between the x and y registers. The adjoining buttons contain unary operations for manipulating bits in the selected register.
It is possible for the value in a register to exceed the selected data size. When this happens, the register name will be highlighted in red. The ` key cycles between data sizes (Shift+` to cycle in reverse). If a result is less than zero, it will be highlighted in green.
Uses Fantasque font by Jany Belluz.
Uses "Cornered Stairs" background by Matt Lipman.
- J.C. Fields jcfields@jcfields.dev
- EE Calc—A more conventional and fully featured calculator I wrote.