What does the 'and' instruction do in assembly language? I was told that it checks the bit order of the operands and sets the 1s to true and anything else to false, but I don't know what it actually does or what effect it has on the code.
What does the 'and' instruction do to the operands in assembly language?
I am trying to understand how the assembly language works for a micro-computer architecture class, and I keep facing different syntaxes in examples: sub $48, %esp mov %eax, 32(%esp) What do these ...
The assembly is a piece of code/executable that is in machine executable code. This might be an obj, exe, dll, ... It is the result of a compile. The assembler is the "compiler" that compiles code into machine executable code. This code has been written in the language " Assembly Language ". Assembly language in common English is often called Assembler. Assemblator seems to be a creative word ...
Building a complete program involves writing source code for the program in either assembly or a higher-level language like C++. The source code is assembled (for assembly code) or compiled (for higher-level languages) to object code, and individual modules are linked together to become the machine code for the final program.
This basically makes assembly a low-level language, even though it has a 1 to 1 correlation to the outputted machine code (except when using macro based assemblers, but then the macros still expand to 1 to 1).
How would someone go about writing a routine in assembly, and then compiling it in to object/binary code? If you want to embed a routine in an application written in another language, you should use the tools that the language provides you, in C/C++ you'd use the asm blocks. You can instead make stand-alone .s or .asm files using the same syntax a C compiler would output, for example gcc -O3 ...