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yes, it depends on type, processor, operating system and even compiler.
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yes, it depends on type, processor, operating system and even compiler.

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Hi!<br />
<br />
I noticed that when I declare a buffer of, for example, char[5], the assembly code generated by gcc actually allocates a much larger buffer, in this case 24 bytes:<br />
<br />
subl $24, (%esp)<br />
<br />
How can this be explained?
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Hi!

I noticed that when I declare a buffer of, for example, char[5], the assembly code generated by gcc actually allocates a much larger buffer, in this case 24 bytes:

subl $24, (%esp)

How can this be explained?

Number of bytes allocated for char arrays by subl %esp seems much too high (in linux 2.4, gcc 3.2.2)

An assembly language (or assembler language) is a low-level programming language for a computer or other programmable device in which there is a very strong (generally one-to-one) correspondence between the language and the architecture's machine code instructions. Each assembly language is specific to a particular computer architecture, in contrast to most high-level programming languages, which are generally portable across multiple architectures, but require interpreting or compiling. Assembly language is converted into executable machine code by a utility program referred to as an assembler; the conversion process is referred to as assembly, or assembling the code.