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Index > Non-x86 architectures > Cross Assmbler for ARM Question

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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20298
Location: In your JS exploiting you and your system
revolution 09 Jul 2012, 04:08
cwpjr wrote:
by "entirely different and much more elegant." are you referring to what TonyMac32 referred to in loving the "flexibility" of the ARM instruction set and architecture?
Not really. I an referring to the fact that the ARM ISA is very different from the x86 ISA. Once someone has completed this puzzle we can all see just how much is required to get the ARM CPU to do what an x86 will do.

Note that doing a reverse translation (from ARM to x86) would be just as ugly and inelegant.
Post 09 Jul 2012, 04:08
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Tonymac32



Joined: 30 Nov 2009
Posts: 13
Tonymac32 09 Jul 2012, 13:08
That first instruction alone is an ugly translation. I might work on your puzzle tonight, when I'm not at work. Wink Am I also to assume "AL" and "AH" are, as in x86, part of the same register? Or is that one of the freedoms afforded by the rules?
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20298
Location: In your JS exploiting you and your system
revolution 09 Jul 2012, 14:46
Tonymac32 wrote:
Am I also to assume "AL" and "AH" are, as in x86, part of the same register?
Yes.
Post 09 Jul 2012, 14:46
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Tonymac32



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Tonymac32 09 Jul 2012, 16:43
That's nasty. Dually noted.
Post 09 Jul 2012, 16:43
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20298
Location: In your JS exploiting you and your system
revolution 09 Jul 2012, 22:51
Tonymac32 wrote:
That's nasty. Dually noted.
And I didn't even include the really nasty instructions. Razz Maybe for the next puzzle I can make it really hard.
Post 09 Jul 2012, 22:51
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