Indexed access for var/literal content

[ohhmm]

Expression for indexed access is

<var/str>[<idx>][r][<bitness>]

Lets say
str - "String"

str[3] is 'i'
str[3]r is 'r'

str[3]8 is 'i'
str[3]r8 is 'r'

str[2]16 is 'n'+('g'<<8)
str[2]r16 is 't'+('S'<<8)

Bitness of non power of two is considerable.