- Joined Oct 19, 2020
The crux of the question is whether the write enable needs to be controlled, versus just tying it so that it is permanently enabled.A write enable control would allow the contents to be altered to implement a branch or a call instruction. Since the incrementing is done with an adder how else are you going to advance the Program Counter if you don't have a write enable?
good point.Since the incrementing is done with an adder how else are you going to advance the Program Counter if you don't have a write enable?
Let's let the TS think about HIS homework problem and offer something up.good point.
When will you not need a write? It seems to me that every instruction you will increment or load new address and never will you do nothing. So if you had a enable/disable pin it would always be in the write position.
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by Jake Hertz
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