+

+Logicode

+ +

Welcome to Logicode!

+ +

Logicode is a minimalistic language that is mainly based on Logisim.

+ +

Because of that, the only built-in commands are AND, OR and NOT, and you make the rest.

+ +

The three logic gates are represented like so:

+ +
    +
  • +a&b: AND of a and b.
    • +
  • +a|b: OR of a and b.
    • +
  • +!a: NOT of a.
    • +
+ +

There are more built-ins:

+ +
    +
  • +?: Random bit, either 0 or 1.
    • +
  • +#: Begins a line for comments.
    • +
+ +

You can make extra things from these commands, like circuits and variables.

+ +

+Make-your-own Things

+ +

+Circuits

+ +

To create a circuit, you have to do this:

+ +

circ circuit_name(arg1, arg2...)->{what the function does}

+ +

circ is the circuit "declaration", and everything after the -> is interpreted as code.

+ +

Normal circuits have 1 bit as output, but if more bits are required, use the + symbol to separate bits.

+ +

Like this:

+ +

circ circuit_name(arg1, arg2...)->{1st bit}+{2nd bit}+...

+ +

+Variables

+ +

To create a variable:

+ +

var var_name=value

+ +

var is the variable declaration.

+ +

+Conditions

+ +

To create a condition:

+ +

cond arg->{executed if arg = 1}/{executed if arg = 0}

+ +

cond is the variable declaration, arg is either a value of 0 or 1, and the / is the separator of the two executing strings.

+ +

+I/O

+ +

+Output

+ +

There is also output as well:

+ +

out out_value

+ +

out is the output declaration, and you can include the built-in commands, as well as self-made circuits, into the output to be processed.

+ +

+Example code:

+ +
circ xor(a,b)->(!(a&b))&(a|b)
+var test=xor(1,1)
+out !(test)
+
+Output: 1
+
+ +

The circuit xor calculates the XOR of two bits, and test is declared as the XOR of 1 and 1 (which is 0).

+ +

Then, the out outputs the NOT of test, which is 1.

+ +

Expanding on the previous example:

+ +
circ xor(a,b)->(!(a&b))&(a|b)
+circ ha(a,b)->(a&b)+(xor(a,b))
+out ha(1,?)
+
+Output: 10
+
+ +

The circuit xor is the same as before, and the circuit ha is a half-adder of two bits (so it takes two arguments), and outputs two bits.

+ +

The out outputs the half-adding of 1 and ?, which is either 01 or 10 (depending on what the ? gives).

+ + + +