Registers
NAR 2 has following registers:
- a Program counter called BN (sr. Brojač Naredbi, en. Counter of Instructions)
- Single 32-bit accumulator that can be treated either as integer (fixed point) or real (floating point) number
- Up to 16 Index registers are specifiable, X0 to X15. However, X0 was never used, possibly because it was reserved as program counter (BN)
- There were no flags or flag registers
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