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2.1.2.11 Miscellaneous operators

Finally, we list in the following table three miscellaneous MIX instructions which do not fit in any of the previous subsections:

MOVE
Move MOD words from M to the location stored in rI1. OPCODE = 7, MOD = no. of words.
NOP
No operation. OPCODE = 0, MOD = 0.
HLT
Halt. Stops instruction fetching. OPCODE = 5, MOD = 2.
The only effect of executing ‘NOP’ is increasing the location counter, while ‘HLT’ usually marks program termination.