Load Accumulator from Test Word(5 usec.)
lat Address 2000

This instruction forms the inclusive OR of the C(AC) and the contents of the Test Word. This instruction is usually combined with address 200 (clear Accumulator), so that C(AC) will equal the contents of the Test Word Switches.

Complement Accumulator(5 usec.)
cma Address 1000

This instruction complements (makes negative) the contents of the Accumulator.

Halt
hlt Address 400

This instruction stops the computer.

Clear Accumulator(5 usec.)
cla Address 200

This instruction clears (sets equal to plus 0) the contents of the Accumulator.

Clear Selected Program Flag(5 usec.)
clf Address 01 to 07 inclusive

The selected program flag will be cleared. Address 00 selects no program flag, 01 clears program flag 1, 02 clears program flag 2, etc. Address 07 clears all program flags.