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Re: How many bytes is an instruction?

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Re: How many bytes is an instruction?

Subject: Re: How many bytes is an instruction?
From: Michael Crawford <email@hidden>
Date: Fri, 26 Jul 2013 05:37:49 +0000

Intel-architecture instructions have variable sizes.

ARM (for iOS) are all 32-bits.

Thumb (again for iOS) are all 16-bits.

However, it looks like your crash is at an odd address. That should never be the case. Perhaps some bogus value got stuffed into the program counter.

Mike

email@hidden

http://www.warplife.com/mdc/

On Wed, Jul 24, 2013 at 7:30 PM, Rick Mann <email@hidden> wrote:

I've got a crash log without good symbolication. It shows the crash as myMethod:+657.

Can I look at disassembly of the file in Xcode and gauge approximately where that crash occurred by counting instructions? Is there a rule of thumb I can use for instruction width?

Thanks,
--
Rick

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References:
	>How many bytes is an instruction? (From: Rick Mann <email@hidden>)

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