Language Specification for PRU

• Language Name: SimpPRU
• Statically typed language
• TAB or 4 spaces for indentation

Primitive data types:

• int
• bool

Binary operators

• / divide
• * multiply
• + plus
• - minus

  Unary operators

• & unary and
• | unary or
• ~ unary not

  logical operator

• and logical and
• or logical or
• not logical not operator precedence, as arranged

Arithmetic operations

• int and float can be operated together, int will be promoted to float
• bool cannot be operated with anything other than bool
• bool only supports unary operators

  Variable assignment

• <data_type> <identifier> := <value>

int value := 34

if elif else loop

  
if <condition_to_be_evaluated>:
    <do something>
elif <condition_to_be_evaluated>:
    <do something>
else:
    <do something>

for loop

for <identifier>, <condition>, <action to loop completion>:
    <do something>

functions

<return type> <function name> (<data type> variable name, ...):
    <do something>

int add(int a, int b):
    return a + b

• Each functions must always return something, since void data type is not included

Register Access

bool read_register(register_name, bit_to_be_read)
bool write_register(register_name, bit_to_be_written, bool value_to_be_written)