# Design

## Parsing

- First we tokenize the input (syntax check)
- Then we interpret the input (semantics check)
- Then we execute the input

## Notation

- `[operation][number type]`, e.g. `divi` for divide (div) integer
- `%[register]` for addressing registers
- `$[value]` for using literals/immediate values
- `;` for end of statement (mandatory)
- `[label]:` for labels
- Elements must be separated by whitespace character
	- Good: `add $2 $5 %A;`
	- Bad: `add $2$5%A;`

## Examples

Divide register A by 5 and store the result in register A:
`divi %A $5 %A;`

## Reserved symbols

The following whitespace characters are used to separate symbols:
- space (' ')
- tab ('\t')
- return carriage ('\r')
- newline ('\n')

The following characters are used as identifiers:
- dollar ('$')
- percentage ('%')
- colon (':')
- semicolon (';')
- hash ('#')

All operands are reserved keywords and can therefore NOT be used as labels.