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Topic: addressing system (Read 409 times) |
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kirru
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Posts: 34
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addressing system
« on: Jan 27th, 2010, 10:53pm » |
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what are the all important differences between byte addressable and word addressable systems??
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Grimbal
wu::riddles Moderator
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Re: addressing system
« Reply #1 on: Jan 28th, 2010, 9:40am » |
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I'd like to say it doesn't matter. Any difference is taken care of by the compiler.
- With word-addressable systems you can address more data with the same pointer size.
- With word-addressable systems, you tend to have problems implementing "pointer to char". On these machines a char could be redefined to have the size of a word. Or, sometimes, special instructions are added to emulate pointer to char by recomputing the address, reading a word and shifting around the bytes to get one char.
- I think that except for supercomputers, all computers are byte-addressable.
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