#3: Operators
As of version v1.1.0, there are a total of 13 operators, and we’ll go through each category in the following lessons.
For now, look at this table from the Aglang reference and try to understand what they do on your own:
| Operator | Name | Structure | Description |
|---|---|---|---|
> | Copy | [src]>[dest]; | Copies the value in [src] into [dest]. |
! | Remove | [dest]!; | Either clears (if [dest] is a register) or pops (if [dest] is the stack) a value. |
| | | Input | |; | Pushes 0 to the stack (to act as a delimiter), gets an input from the StdIn, reverses it and pushes each character into the stack. |
+ | Sum | [dest]+[src]; | Sums the two arguments and puts the result in [dest]. If the sum is greater than 255, the result wraps to 0. |
- | Subtraction | [dest]-[src]; | Subtracts the two arguments and puts the result in [dest]. If the result is less than 0, it wraps to 255. |
* | Multiplication | [dest]*[src]; | Multiplies the two arguments and puts the result in [dest]. If the result is greater than 255, the result wraps to 0. |
/ | Division | [dest]/[src]; | Divides the [dest] argument by [src] and puts the quotient in [dest]. |
% | Remainder | [dest]%[src]; | Divides [dest] by [src] and puts the remainder of the operation in [dest]. |
~ | Label | ~[label] | Used to declare a label. A label can only be named using dots (e.g. ”.”, ”..“) |
? | Compare | [src]?[dest] | Compares [src] to [dest]. Can either result in Greater, Less or Equal |
^ | Greater | ^[label] | Needs to be preceded by a Compare statement. If the result of the comparison is Greater, the program will jump to [label]. |
< | Less | <[label] | Needs to be preceded by a Compare statement. If the result of the comparison is Less, the program will jump to [label]. |
= | Equal | =[label] | Needs to be preceded by a Compare statement. If the result of the comparison is Equal, the program will jump to [label]. |
(the input operators aren’t in a code block because markdown parsing won’t work correctly)
Now, try predicting what the output of the code in the editor will be!