Assignment Operators

In brainease, you can assign and change the value of a specific cell with 4 main instructions: inc, dec, save and read.

Incrementing and Decrementing

You can increment or decrement a cell with the inc and dec instructions. They are a 1:1 mapping to brainf*ck with the + and - operators. The only catch is that you can increment or decrement a cell multiple times in a row.

The syntax is pretty simple:

# Syntax:
(inc|dec) <value> in *<cell>

# Increments the cell 2 by 1
inc 1 in *2

# Decrements the pointer cell by 84
dec 84 in *@

You need to be careful, because with these two instructions is pretty easy to overflow a cell. Read more about cell overflow.

Getting ASCII values

To prevent you from programming with a ASCII table on the second monitor, there's a "special" instruction that allows you to save the ASCII value of a character in a specific cell.

This improves the readability of your code when interacting with characters. Because instead of inc 97 in *5, you can just write save 'a' in *5.

# Syntax:
save '<char>' at *<cell>

# Saves the ASCII value of 'a' in the cell 3
save 'a' at *3
# the same as `inc 97 in *3`, but more readable

# Saves the new line character in the cell 6
save '\n' at *6
# the same as `inc 10 in *6`...

Getting values from STDIN

With the default Io Handler implementation, you can read a character from STDIN and save his ASCII value in a specific cell.

To understand better the IO concept and how it works, learn how to handle I/O operations.

# Syntax:
read *<cell>

# Reads whatever is written in STDIN and saves it in the cell 7
read *7

# Reads the next character from STDIN to the current pointer
read *@