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ECED 3204. Microprocessors M68HC11 Microcontroller Instruction INC 2,X Step 5. Executing the increment operation: Result = $39 + 1 = $3A Memory contents Address bus $D402 CPU $3A Data bus Address $?? $?? $?? $?? $3A $?? $?? $?? $?? $D3FE $D3FF $D400 $D401 $D402 $D403 $D404 $D405 $D406 Step 6. Storing the result back to the memory address Instruction 4 -- Increment & write cycles Dalhousie University 104 Jose A. Gonzalez-Cueto