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.