# C operators that modify variables/registers
oper ++ __incr prefix 60
oper -- __decr prefix 60
def __decr{a}   = __decr{a,1}
def __incr{a}   = __incr{a,1}

oper +=  __incr   infix right 5
oper -=  __decr   infix right 5
oper *=  __setmul infix right 5
oper /=  __setdiv infix right 5
oper %=  __setmod infix right 5
oper <<= __setshl infix right 5
oper >>= __setshr infix right 5
oper &=  __setand infix right 5
oper ^=  __setxor infix right 5
oper |=  __setor  infix right 5

def __incr  {a,b} = { a = __add{a,b} }
def __decr  {a,b} = { a = __sub{a,b} }
def __setmul{a,b} = { a = __mul{a,b} }
def __setdiv{a,b} = { a = __div{a,b} }
def __setmod{a,b} = { a = __mod{a,b} }
def __setshl{a,b} = { a = __shl{a,b} }
def __setshr{a,b} = { a = __shr{a,b} }
def __setand{a,b} = { a = __and{a,b} }
def __setxor{a,b} = { a = __xor{a,b} }
def __setor {a,b} = { a = __or {a,b} }