Some values can be specified using SI (Système Internationale) units, for example:

ClockSpeed=10MHz
MemorySize=2Gb

The scaling factor is set by the prefix to the unit. ARMulator only accepts k, M, or G prefixes for kilo, mega, and giga. These correspond to scalings of 10³, 10⁶, and 10⁹, or 2¹⁰, 2²⁰, and 2³⁰. ARMulator decides which scaling to use according to context.