Page 11 - TOPIC 3 PART 2

• Arithmetic instruction: ADD, SUB, MUL, DEC..

– ADD and SUB are used to add/subtract the

contents of:

• Two registers, a register and a memory

location.

• ADD.x source, destination

– ADD.x D0, D1

– Contents of D0 are added to contents of D1, and the

sum is stored in D1.

• SUB source, destination

– SUB.x DO, (A1)

– Subtract D0 from memory content ofA1, and the

subtracted content is stored in the memory of A1.