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Description Add argument to B register
Format AAB <argument>
Code 172 0008
Affected B:=B+argument, C, O, Q
Type User
Architecture ND-100, ND-110

AAB is an assembly instruction. The 8-bit argument (the lower 8 bits of the 16-bit instruction word) is sign-extended to 16 bits and added to the B register. The result is left in the B register.

Flags affected

C, O and Q may be affected as for the ADD instruction.