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Mastering Assembly Programming

You're reading from   Mastering Assembly Programming From instruction set to kernel module with Intel processor

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787287488
Length 290 pages
Edition 1st Edition
Languages
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Author (1):
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Alexey Lyashko Alexey Lyashko
Author Profile Icon Alexey Lyashko
Alexey Lyashko
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Toc

Arrays

By now, we have come a long way, dealing primarily with basic data types ranging from bytes to quad words, preparing ourselves for more complex data-related concepts. Let's continue by looking into arrays, which may be characterized as the sequential storage of data of the same type. Theoretically, there is no limitation to the size of array members, but practically we are limited to, for example, the size of a register. However, workarounds exist and we will see that later in this chapter.

Simple byte arrays

A good example of a widely used, yet simple, array would be a forward substitution table and/or a reverse substitution table used with the AES algorithm:

aes_sbox:
db 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f...
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