"pre-fused" instructions use up a lot of opcode space that might be better used for other things. Complex addressing modes help code size if you've got just a

"pre-fused" instructions use up a lot of opcode space that might be better used for other things. Complex addressing modes help code size if you've got just a single access to an array element in some straight line code, but they're seldom needed in loops because most of the calculation is best moved outside of the loop leaving just a simple pointer increment inside the loop.