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.