#6: Basic operators

Alright! Let’s learn operators!

The first two we’ll get into are the basic operators: these are the Copy operator (that we’ve used many times before) and the Remove operator.

Copy

The Copy operator (>) requires two arguments and uses the following syntax:

[source]>[destination]

[source] needs to be readable and [destination] needs to be writable; if the two arguments don’t follow these requirements, the compiler/interpreter will report it.

If the destination is the stack, the Copy operator pushes the value in the source to it; if the destination is a Stdout argument, it will print it value into the output.

Remove

The Remove operator (!) requires one argument to the operator’s left. It uses the following syntax:

[target]!

[target] needs to be writable, but Stdout arguments aren’t supported. The Remove operator either clears the target (in the case of a register) or pops a value from the stack (if the target is the stack), but, unlike Assembly, doesn’t pop that value into another register.

In this objective’s code, two values are pushed into the stack, but the one we want to print isn’t at the top! Try to pop the top value from the stack and print the second value (that now should be at the top) to the console.